http://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&feed=atom&action=historyFunzionamento di una penna stilografica/en - Cronologia2024-03-28T09:38:08ZCronologia della pagina su questo sitoMediaWiki 1.35.4http://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=139135&oldid=prevPiccardi il 21:58, 28 ott 20202020-10-28T21:58:02Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It was in this field that the innovation introduced by ''Lewis Edson Waterman'' took place, which is often referred to, in an unfounded way, as the invention of the first fountain pen. In order to improve the transmission of the ink towards the nib, he made a series of engravings on the feeder creating a sort of "channels" on which the ink could flow by capillarity without overflowing and leaving enough space for the air to enter the pen tank. He thus produced one of the best and most reliable feeder of his time, whose success is at the root of the exaggerated claim to have created "the first practical fountain pen".</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It was in this field that the innovation introduced by ''Lewis Edson Waterman'' took place, which is often referred to, in an unfounded way, as the invention of the first fountain pen. In order to improve the transmission of the ink towards the nib, he made a series of engravings on the feeder creating a sort of "channels" on which the ink could flow by capillarity without overflowing and leaving enough space for the air to enter the pen tank. He thus produced one of the best and most reliable feeder of his time, whose success is at the root of the exaggerated claim to have created "the first practical fountain pen".</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
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</table>Piccardihttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=139132&oldid=prevFuzzyBot: Aggiornamento come da nuova versione della pagina di origine2020-10-28T21:56:57Z<p>Aggiornamento come da nuova versione della pagina di origine</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It was in this field that the innovation introduced by ''Lewis Edson Waterman'' took place, which is often referred to, in an unfounded way, as the invention of the first fountain pen. In order to improve the transmission of the ink towards the nib, he made a series of engravings on the feeder creating a sort of "channels" on which the ink could flow by capillarity without overflowing and leaving enough space for the air to enter the pen tank. He thus produced one of the best and most reliable feeder of his time, whose success is at the root of the exaggerated claim to have created "the first practical fountain pen".</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It was in this field that the innovation introduced by ''Lewis Edson Waterman'' took place, which is often referred to, in an unfounded way, as the invention of the first fountain pen. In order to improve the transmission of the ink towards the nib, he made a series of engravings on the feeder creating a sort of "channels" on which the ink could flow by capillarity without overflowing and leaving enough space for the air to enter the pen tank. He thus produced one of the best and most reliable feeder of his time, whose success is at the root of the exaggerated claim to have created "the first practical fountain pen".</div></td></tr>
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</table>FuzzyBothttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=121373&oldid=prevPiccardi: Creata pagina con "Category:Translated Pages"2018-12-17T20:50:25Z<p>Creata pagina con "<a href="/Categoria:Translated_Pages" title="Categoria:Translated Pages">Category:Translated Pages</a>"</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It was in this field that the innovation introduced by ''Lewis Edson Waterman'' took place, which is often referred to, in an unfounded way, as the invention of the first fountain pen. In order to improve the transmission of the ink towards the nib, he made a series of engravings on the feeder creating a sort of "channels" on which the ink could flow by capillarity without overflowing and leaving enough space for the air to enter the pen tank. He thus produced one of the best and most reliable feeder of his time, whose success is at the root of the exaggerated claim to have created "the first practical fountain pen".</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It was in this field that the innovation introduced by ''Lewis Edson Waterman'' took place, which is often referred to, in an unfounded way, as the invention of the first fountain pen. In order to improve the transmission of the ink towards the nib, he made a series of engravings on the feeder creating a sort of "channels" on which the ink could flow by capillarity without overflowing and leaving enough space for the air to enter the pen tank. He thus produced one of the best and most reliable feeder of his time, whose success is at the root of the exaggerated claim to have created "the first practical fountain pen".</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
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</table>Piccardihttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=121371&oldid=prevPiccardi: Creata pagina con "It was in this field that the innovation introduced by ''Lewis Edson Waterman'' took place, which is often referred to, in an unfounded way, as the invention of the first foun..."2018-12-17T20:50:10Z<p>Creata pagina con "It was in this field that the innovation introduced by ''Lewis Edson Waterman'' took place, which is often referred to, in an unfounded way, as the invention of the first foun..."</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 20:50, 17 dic 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l24" >Riga 24:</td>
<td colspan="2" class="diff-lineno">Riga 24:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Although all this is relatively simple to describe, the realization of a good functioning depends on succeeding in making this complex balance of gravity, pressure and capillarity work, and it is therefore essential that a correct coupling between [[nib]] and [[feeder]] occurs. Still today it happens to find fountain pens that present more or less marked problems of operation, like difficulty to start the writing or ink losses. </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Although all this is relatively simple to describe, the realization of a good functioning depends on succeeding in making this complex balance of gravity, pressure and capillarity work, and it is therefore essential that a correct coupling between [[nib]] and [[feeder]] occurs. Still today it happens to find fountain pens that present more or less marked problems of operation, like difficulty to start the writing or ink losses. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Fu proprio </del>in <del class="diffchange diffchange-inline">questo campo che ebbe luogo l'innovazione introdotta da </del>''Lewis Edson Waterman'' <del class="diffchange diffchange-inline">che spesso viene indicata</del>, in <del class="diffchange diffchange-inline">maniera infondata</del>, <del class="diffchange diffchange-inline">come l'invenzione della prima stilografica</del>. <del class="diffchange diffchange-inline">Questi per migliorare la trasmissione dell'inchiostro verso il pennino eseguì una serie di incisioni sull'alimentatore creandovi una sorta di ''canali'' su cui l'inchiostro potesse scorrere per capillarità senza però debordare e lasciando spazio sufficiente per consentire all'aria di entrare nel serbatoio della penna</del>. <del class="diffchange diffchange-inline">Produsse così uno dei migliori e più affidabili alimentatori del suo tempo</del>, <del class="diffchange diffchange-inline">il cui successo è alla radice della esagerata pretesa di aver creato ''</del>"the first practical fountain pen"<del class="diffchange diffchange-inline">''</del>.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">It was </ins>in <ins class="diffchange diffchange-inline">this field that the innovation introduced by </ins>''Lewis Edson Waterman'' <ins class="diffchange diffchange-inline">took place, which is often referred to</ins>, in <ins class="diffchange diffchange-inline">an unfounded way</ins>, <ins class="diffchange diffchange-inline">as the invention of the first fountain pen</ins>. <ins class="diffchange diffchange-inline">In order to improve the transmission of the ink towards the nib, he made a series of engravings on the feeder creating a sort of "channels" on which the ink could flow by capillarity without overflowing and leaving enough space for the air to enter the pen tank</ins>. <ins class="diffchange diffchange-inline">He thus produced one of the best and most reliable feeder of his time</ins>, <ins class="diffchange diffchange-inline">whose success is at the root of the exaggerated claim to have created </ins>"the first practical fountain pen".</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Categoria:Tecnica]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Categoria:Tecnica]]</div></td></tr>
</table>Piccardihttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=121369&oldid=prevPiccardi: Creata pagina con "Although all this is relatively simple to describe, the realization of a good functioning depends on succeeding in making this complex balance of gravity, pressure and capilla..."2018-12-17T20:49:22Z<p>Creata pagina con "Although all this is relatively simple to describe, the realization of a good functioning depends on succeeding in making this complex balance of gravity, pressure and capilla..."</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 20:49, 17 dic 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l22" >Riga 22:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The fact that the flow of ink is linked to the effect of the surface tension is what allows a fountain pen (besides leaving stains in the pockets of the shirts) also to write upwards, at least until the ink present inside the channel of the[[feeder]] is exhausted. It is for this reason that many feeders have further internal grooves or sort of ''small bags'' that allow to increase this reserve, that is reintegrated every time that, putting the pen in vertical position, the gravity brings back the ink of the tank in contact with the [[feeder]]. It is always for this reason that a [[fountain pen]], kept until a moment before in the pocket with the tip upwards, is able to write immediately (if the ink has not dried out and if the tip has an adequate curvature).</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The fact that the flow of ink is linked to the effect of the surface tension is what allows a fountain pen (besides leaving stains in the pockets of the shirts) also to write upwards, at least until the ink present inside the channel of the[[feeder]] is exhausted. It is for this reason that many feeders have further internal grooves or sort of ''small bags'' that allow to increase this reserve, that is reintegrated every time that, putting the pen in vertical position, the gravity brings back the ink of the tank in contact with the [[feeder]]. It is always for this reason that a [[fountain pen]], kept until a moment before in the pocket with the tip upwards, is able to write immediately (if the ink has not dried out and if the tip has an adequate curvature).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Benché tutto questo sia relativamente semplice da descrivere</del>, <del class="diffchange diffchange-inline">la realizzazione di un buon funzionamento dipende dal riuscire </del>a <del class="diffchange diffchange-inline">far funzionare questo complesso equilibrio di gravità</del>, <del class="diffchange diffchange-inline">pressione e capillarità</del>, <del class="diffchange diffchange-inline">ed è quindi essenziale che si verifichi un corretto accoppiamento fra </del>[[<del class="diffchange diffchange-inline">pennino</del>]] <del class="diffchange diffchange-inline">ed </del>[[<del class="diffchange diffchange-inline">alimentatore</del>]]. <del class="diffchange diffchange-inline">Ancora oggi capita di trovare stilografiche che presentano problemi più o meno marcati di funzionamento</del>, <del class="diffchange diffchange-inline">come difficoltà di avviare la scrittura o perdite di inchiostro</del>. </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Although all this is relatively simple to describe</ins>, <ins class="diffchange diffchange-inline">the realization of </ins>a <ins class="diffchange diffchange-inline">good functioning depends on succeeding in making this complex balance of gravity</ins>, <ins class="diffchange diffchange-inline">pressure and capillarity work</ins>, <ins class="diffchange diffchange-inline">and it is therefore essential that a correct coupling between </ins>[[<ins class="diffchange diffchange-inline">nib</ins>]] <ins class="diffchange diffchange-inline">and </ins>[[<ins class="diffchange diffchange-inline">feeder</ins>]] <ins class="diffchange diffchange-inline">occurs</ins>. <ins class="diffchange diffchange-inline">Still today it happens to find fountain pens that present more or less marked problems of operation</ins>, <ins class="diffchange diffchange-inline">like difficulty to start the writing or ink losses</ins>. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Fu proprio in questo campo che ebbe luogo l'innovazione introdotta da ''Lewis Edson Waterman'' che spesso viene indicata, in maniera infondata, come l'invenzione della prima stilografica. Questi per migliorare la trasmissione dell'inchiostro verso il pennino eseguì una serie di incisioni sull'alimentatore creandovi una sorta di ''canali'' su cui l'inchiostro potesse scorrere per capillarità senza però debordare e lasciando spazio sufficiente per consentire all'aria di entrare nel serbatoio della penna. Produsse così uno dei migliori e più affidabili alimentatori del suo tempo, il cui successo è alla radice della esagerata pretesa di aver creato ''"the first practical fountain pen"''.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Fu proprio in questo campo che ebbe luogo l'innovazione introdotta da ''Lewis Edson Waterman'' che spesso viene indicata, in maniera infondata, come l'invenzione della prima stilografica. Questi per migliorare la trasmissione dell'inchiostro verso il pennino eseguì una serie di incisioni sull'alimentatore creandovi una sorta di ''canali'' su cui l'inchiostro potesse scorrere per capillarità senza però debordare e lasciando spazio sufficiente per consentire all'aria di entrare nel serbatoio della penna. Produsse così uno dei migliori e più affidabili alimentatori del suo tempo, il cui successo è alla radice della esagerata pretesa di aver creato ''"the first practical fountain pen"''.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Categoria:Tecnica]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Categoria:Tecnica]]</div></td></tr>
</table>Piccardihttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=121367&oldid=prevPiccardi: Creata pagina con "The fact that the flow of ink is linked to the effect of the surface tension is what allows a fountain pen (besides leaving stains in the pockets of the shirts) also to write..."2018-12-17T20:48:50Z<p>Creata pagina con "The fact that the flow of ink is linked to the effect of the surface tension is what allows a fountain pen (besides leaving stains in the pockets of the shirts) also to write..."</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="it">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Versione meno recente</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 20:48, 17 dic 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20" >Riga 20:</td>
<td colspan="2" class="diff-lineno">Riga 20:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Waterman-52-BCHR-Feed.jpg|thumb|300px|Feeder and nib of a [[Waterman 52]], with an emphasis on the ink retained by the ''surface tension''.]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Waterman-52-BCHR-Feed.jpg|thumb|300px|Feeder and nib of a [[Waterman 52]], with an emphasis on the ink retained by the ''surface tension''.]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Il fatto che il flusso d'inchiostro sia legato all'effetto della tensione superficiale è ciò che consente ad una stilografica </del>(<del class="diffchange diffchange-inline">oltre a lasciar macchie nelle tasche delle camicie</del>) <del class="diffchange diffchange-inline">anche di scrivere verso l'alto</del>, <del class="diffchange diffchange-inline">almeno fino a quando non si esaurisce l'inchiostro presente all'interno del canale dell'</del>[[<del class="diffchange diffchange-inline">alimentatore</del>]]. <del class="diffchange diffchange-inline">E</del>' <del class="diffchange diffchange-inline">per questo motivo che molti alimentatori hanno delle ulteriori scanalature interne o sorta di </del>''<del class="diffchange diffchange-inline">piccole sacche</del>'<del class="diffchange diffchange-inline">' che consentono di aumentare questa riserva</del>, <del class="diffchange diffchange-inline">che viene reintegrata tutte le volte che</del>, <del class="diffchange diffchange-inline">mettendo la penna </del>in <del class="diffchange diffchange-inline">posizione verticale</del>, <del class="diffchange diffchange-inline">la gravità riporta l'inchiostro del serbatoio </del>in <del class="diffchange diffchange-inline">contatto con l'</del>[[<del class="diffchange diffchange-inline">alimentatore</del>]]. <del class="diffchange diffchange-inline">E' sempre per questo motivo che una </del>[[<del class="diffchange diffchange-inline">stilografica</del>]], <del class="diffchange diffchange-inline">tenuta fino ad un momento prima </del>in <del class="diffchange diffchange-inline">tasca con la punta all'insù</del>, <del class="diffchange diffchange-inline">è in grado di scrivere immediatamente </del>(<del class="diffchange diffchange-inline">se l'inchiostro non si è seccato e se la punta presenta una curvatura adeguata</del>).</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The fact that the flow of ink is linked to the effect of the surface tension is what allows a fountain pen </ins>(<ins class="diffchange diffchange-inline">besides leaving stains in the pockets of the shirts</ins>) <ins class="diffchange diffchange-inline">also to write upwards</ins>, <ins class="diffchange diffchange-inline">at least until the ink present inside the channel of the</ins>[[<ins class="diffchange diffchange-inline">feeder</ins>]] <ins class="diffchange diffchange-inline">is exhausted</ins>. <ins class="diffchange diffchange-inline">It is for this reason that many feeders have further internal grooves or sort of </ins>''<ins class="diffchange diffchange-inline">small bags</ins>'' <ins class="diffchange diffchange-inline">that allow to increase this reserve</ins>, <ins class="diffchange diffchange-inline">that is reintegrated every time that</ins>, <ins class="diffchange diffchange-inline">putting the pen </ins>in <ins class="diffchange diffchange-inline">vertical position</ins>, <ins class="diffchange diffchange-inline">the gravity brings back the ink of the tank </ins>in <ins class="diffchange diffchange-inline">contact with the </ins>[[<ins class="diffchange diffchange-inline">feeder</ins>]]. <ins class="diffchange diffchange-inline">It is always for this reason that a </ins>[[<ins class="diffchange diffchange-inline">fountain pen</ins>]], <ins class="diffchange diffchange-inline">kept until a moment before </ins>in <ins class="diffchange diffchange-inline">the pocket with the tip upwards</ins>, <ins class="diffchange diffchange-inline">is able to write immediately </ins>(<ins class="diffchange diffchange-inline">if the ink has not dried out and if the tip has an adequate curvature</ins>).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Benché tutto questo sia relativamente semplice da descrivere, la realizzazione di un buon funzionamento dipende dal riuscire a far funzionare questo complesso equilibrio di gravità, pressione e capillarità, ed è quindi essenziale che si verifichi un corretto accoppiamento fra [[pennino]] ed [[alimentatore]]. Ancora oggi capita di trovare stilografiche che presentano problemi più o meno marcati di funzionamento, come difficoltà di avviare la scrittura o perdite di inchiostro. </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Benché tutto questo sia relativamente semplice da descrivere, la realizzazione di un buon funzionamento dipende dal riuscire a far funzionare questo complesso equilibrio di gravità, pressione e capillarità, ed è quindi essenziale che si verifichi un corretto accoppiamento fra [[pennino]] ed [[alimentatore]]. Ancora oggi capita di trovare stilografiche che presentano problemi più o meno marcati di funzionamento, come difficoltà di avviare la scrittura o perdite di inchiostro. </div></td></tr>
</table>Piccardihttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=121365&oldid=prevPiccardi: Creata pagina con "Feeder and nib of a [[Waterman 52, with an emphasis on the ink retained by the ''surface tension''.]]"2018-12-17T20:47:59Z<p>Creata pagina con "<a href="/File:Waterman-52-BCHR-Feed.jpg" title="File:Waterman-52-BCHR-Feed.jpg">thumb|300px|Feeder and nib of a [[Waterman 52</a>, with an emphasis on the ink retained by the ''surface tension''.]]"</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="it">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Versione meno recente</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 20:47, 17 dic 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l18" >Riga 18:</td>
<td colspan="2" class="diff-lineno">Riga 18:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It is this balance of forces that keeps the flow of ink as long as you keep contact with the sheet, even if this generally does not cause stains because of the low porosity of writing paper that once wet does not absorb more ink on the surface, but as you will have realized anyone who has fallen with a stylus in the pocket after unscrewing from the cap, this is not true for the fabric, which can absorb significant amounts of ink (even from a pen remained open with the tip up).</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It is this balance of forces that keeps the flow of ink as long as you keep contact with the sheet, even if this generally does not cause stains because of the low porosity of writing paper that once wet does not absorb more ink on the surface, but as you will have realized anyone who has fallen with a stylus in the pocket after unscrewing from the cap, this is not true for the fabric, which can absorb significant amounts of ink (even from a pen remained open with the tip up).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Waterman-52-BCHR-Feed.jpg|thumb|300px|<del class="diffchange diffchange-inline">Alimentatore e pennino di una </del>[[Waterman 52]], <del class="diffchange diffchange-inline">con in evidenza l</del>'<del class="diffchange diffchange-inline">inchiostro trattenuto dalla </del>'<del class="diffchange diffchange-inline">'tensione superficiale</del>'']]</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Waterman-52-BCHR-Feed.jpg|thumb|300px|<ins class="diffchange diffchange-inline">Feeder and nib of a </ins>[[Waterman 52]], <ins class="diffchange diffchange-inline">with an emphasis on the ink retained by the </ins>''<ins class="diffchange diffchange-inline">surface tension</ins>''<ins class="diffchange diffchange-inline">.</ins>]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Il fatto che il flusso d'inchiostro sia legato all'effetto della tensione superficiale è ciò che consente ad una stilografica (oltre a lasciar macchie nelle tasche delle camicie) anche di scrivere verso l'alto, almeno fino a quando non si esaurisce l'inchiostro presente all'interno del canale dell'[[alimentatore]]. E' per questo motivo che molti alimentatori hanno delle ulteriori scanalature interne o sorta di ''piccole sacche'' che consentono di aumentare questa riserva, che viene reintegrata tutte le volte che, mettendo la penna in posizione verticale, la gravità riporta l'inchiostro del serbatoio in contatto con l'[[alimentatore]]. E' sempre per questo motivo che una [[stilografica]], tenuta fino ad un momento prima in tasca con la punta all'insù, è in grado di scrivere immediatamente (se l'inchiostro non si è seccato e se la punta presenta una curvatura adeguata).</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Il fatto che il flusso d'inchiostro sia legato all'effetto della tensione superficiale è ciò che consente ad una stilografica (oltre a lasciar macchie nelle tasche delle camicie) anche di scrivere verso l'alto, almeno fino a quando non si esaurisce l'inchiostro presente all'interno del canale dell'[[alimentatore]]. E' per questo motivo che molti alimentatori hanno delle ulteriori scanalature interne o sorta di ''piccole sacche'' che consentono di aumentare questa riserva, che viene reintegrata tutte le volte che, mettendo la penna in posizione verticale, la gravità riporta l'inchiostro del serbatoio in contatto con l'[[alimentatore]]. E' sempre per questo motivo che una [[stilografica]], tenuta fino ad un momento prima in tasca con la punta all'insù, è in grado di scrivere immediatamente (se l'inchiostro non si è seccato e se la punta presenta una curvatura adeguata).</div></td></tr>
</table>Piccardihttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=121363&oldid=prevPiccardi: Creata pagina con "It is this balance of forces that keeps the flow of ink as long as you keep contact with the sheet, even if this generally does not cause stains because of the low porosity of..."2018-12-17T20:47:30Z<p>Creata pagina con "It is this balance of forces that keeps the flow of ink as long as you keep contact with the sheet, even if this generally does not cause stains because of the low porosity of..."</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="it">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Versione meno recente</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 20:47, 17 dic 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l16" >Riga 16:</td>
<td colspan="2" class="diff-lineno">Riga 16:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The final stretch of the path is made by the ink by capillarity, passing through the channel in the slit between the two wings of the nib until it reaches the tip, and it is this same capillarity that holds it and prevents it from pouring. But as soon as you place the tip of the nib on a sheet of paper (or another suitable surface), it is the same surface tension, applied this time also to the contact between the tip and the paper, which causes the ink to deposit on the latter and continue to flow as you write through the [[slit]], at least until (in the case of flexible nibs) you press too much widening it too, so as to interrupt the effect of capillarity and the consequent flow of ink.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The final stretch of the path is made by the ink by capillarity, passing through the channel in the slit between the two wings of the nib until it reaches the tip, and it is this same capillarity that holds it and prevents it from pouring. But as soon as you place the tip of the nib on a sheet of paper (or another suitable surface), it is the same surface tension, applied this time also to the contact between the tip and the paper, which causes the ink to deposit on the latter and continue to flow as you write through the [[slit]], at least until (in the case of flexible nibs) you press too much widening it too, so as to interrupt the effect of capillarity and the consequent flow of ink.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">E' questo equilibrio di forze che mantiene il flusso di inchiostro fintanto che si mantiene il contatto col foglio</del>, <del class="diffchange diffchange-inline">anche se questo </del>in <del class="diffchange diffchange-inline">genere non causa macchie per via della scarsa porosità della carta da scrittura che una volta bagnata superficialmente non assorbe altro inchiostro; ma come si sarà reso conto chiunque si sia trovato con una stilo caduta nel taschino dopo essersi svitata dal cappuccio</del>, <del class="diffchange diffchange-inline">questo non è vero per la stoffa</del>, <del class="diffchange diffchange-inline">che può assorbire notevoli quantità di inchiostro </del>(<del class="diffchange diffchange-inline">anche da una penna rimasta aperta con la punta all'insù</del>).</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">It is this balance of forces that keeps the flow of ink as long as you keep contact with the sheet</ins>, <ins class="diffchange diffchange-inline">even if this generally does not cause stains because of the low porosity of writing paper that once wet does not absorb more ink on the surface, but as you will have realized anyone who has fallen with a stylus </ins>in <ins class="diffchange diffchange-inline">the pocket after unscrewing from the cap</ins>, <ins class="diffchange diffchange-inline">this is not true for the fabric</ins>, <ins class="diffchange diffchange-inline">which can absorb significant amounts of ink </ins>(<ins class="diffchange diffchange-inline">even from a pen remained open with the tip up</ins>).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Waterman-52-BCHR-Feed.jpg|thumb|300px|Alimentatore e pennino di una [[Waterman 52]], con in evidenza l'inchiostro trattenuto dalla ''tensione superficiale'']]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Waterman-52-BCHR-Feed.jpg|thumb|300px|Alimentatore e pennino di una [[Waterman 52]], con in evidenza l'inchiostro trattenuto dalla ''tensione superficiale'']]</div></td></tr>
</table>Piccardihttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=121361&oldid=prevPiccardi: Creata pagina con "The final stretch of the path is made by the ink by capillarity, passing through the channel in the slit between the two wings of the nib until it reaches the tip, and it is t..."2018-12-17T20:46:55Z<p>Creata pagina con "The final stretch of the path is made by the ink by capillarity, passing through the channel in the slit between the two wings of the nib until it reaches the tip, and it is t..."</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="it">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Versione meno recente</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 20:46, 17 dic 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l14" >Riga 14:</td>
<td colspan="2" class="diff-lineno">Riga 14:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In fountain pens, this flow control is achieved thanks to the presence of the [[feeder]] channel, through which the ink can reach, due to the combined effect of gravity and capillarity, the height of the two wings of the [[nib]]. As long as the pen is not used, the surface tension prevents the ink from leaving the feeder and the nib, at least as long as they are correctly mounted and there is no other free passage than that of the feeder channel. </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In fountain pens, this flow control is achieved thanks to the presence of the [[feeder]] channel, through which the ink can reach, due to the combined effect of gravity and capillarity, the height of the two wings of the [[nib]]. As long as the pen is not used, the surface tension prevents the ink from leaving the feeder and the nib, at least as long as they are correctly mounted and there is no other free passage than that of the feeder channel. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Il tratto finale del percorso viene fatto dall'inchiostro per capillarità</del>, <del class="diffchange diffchange-inline">passando dal canale nella fenditura fra le due ali del pennino fino a raggiungere la punta</del>, <del class="diffchange diffchange-inline">ed è questa stessa capillarità che lo trattiene e ne impedisce il versamento</del>. <del class="diffchange diffchange-inline">Ma appena si appoggia la punta del pennino su un foglio </del>(<del class="diffchange diffchange-inline">o un'altra superficie adeguata</del>), <del class="diffchange diffchange-inline">è la stessa tensione superficiale</del>, <del class="diffchange diffchange-inline">applicata stavolta anche al contatto fra la punta e la carta</del>, <del class="diffchange diffchange-inline">che fa si che l'inchiostro si depositi su quest'ultima e continui a fluire mentre si scrive passando attraverso la </del>[[<del class="diffchange diffchange-inline">fenditura</del>]], <del class="diffchange diffchange-inline">almeno fintanto che </del>(<del class="diffchange diffchange-inline">nel caso di pennini flessibili</del>) <del class="diffchange diffchange-inline">non si preme in maniera eccessiva allargandola troppo</del>, <del class="diffchange diffchange-inline">così da interrompere l'effetto della capillarità ed il conseguente flusso di inchiostro</del>.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The final stretch of the path is made by the ink by capillarity</ins>, <ins class="diffchange diffchange-inline">passing through the channel in the slit between the two wings of the nib until it reaches the tip</ins>, <ins class="diffchange diffchange-inline">and it is this same capillarity that holds it and prevents it from pouring</ins>. <ins class="diffchange diffchange-inline">But as soon as you place the tip of the nib on a sheet of paper </ins>(<ins class="diffchange diffchange-inline">or another suitable surface</ins>), <ins class="diffchange diffchange-inline">it is the same surface tension</ins>, <ins class="diffchange diffchange-inline">applied this time also to the contact between the tip and the paper</ins>, <ins class="diffchange diffchange-inline">which causes the ink to deposit on the latter and continue to flow as you write through the </ins>[[<ins class="diffchange diffchange-inline">slit</ins>]], <ins class="diffchange diffchange-inline">at least until </ins>(<ins class="diffchange diffchange-inline">in the case of flexible nibs</ins>) <ins class="diffchange diffchange-inline">you press too much widening it too</ins>, <ins class="diffchange diffchange-inline">so as to interrupt the effect of capillarity and the consequent flow of ink</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>E' questo equilibrio di forze che mantiene il flusso di inchiostro fintanto che si mantiene il contatto col foglio, anche se questo in genere non causa macchie per via della scarsa porosità della carta da scrittura che una volta bagnata superficialmente non assorbe altro inchiostro; ma come si sarà reso conto chiunque si sia trovato con una stilo caduta nel taschino dopo essersi svitata dal cappuccio, questo non è vero per la stoffa, che può assorbire notevoli quantità di inchiostro (anche da una penna rimasta aperta con la punta all'insù).</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>E' questo equilibrio di forze che mantiene il flusso di inchiostro fintanto che si mantiene il contatto col foglio, anche se questo in genere non causa macchie per via della scarsa porosità della carta da scrittura che una volta bagnata superficialmente non assorbe altro inchiostro; ma come si sarà reso conto chiunque si sia trovato con una stilo caduta nel taschino dopo essersi svitata dal cappuccio, questo non è vero per la stoffa, che può assorbire notevoli quantità di inchiostro (anche da una penna rimasta aperta con la punta all'insù).</div></td></tr>
</table>Piccardihttp://www.fountainpen.it/index.php?title=Funzionamento_di_una_penna_stilografica/en&diff=121359&oldid=prevPiccardi: Creata pagina con "In fountain pens, this flow control is achieved thanks to the presence of the feeder channel, through which the ink can reach, due to the combined effect of gravity and ca..."2018-12-17T20:46:17Z<p>Creata pagina con "In fountain pens, this flow control is achieved thanks to the presence of the <a href="/Feeder" class="mw-redirect" title="Feeder">feeder</a> channel, through which the ink can reach, due to the combined effect of gravity and ca..."</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="it">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Versione meno recente</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 20:46, 17 dic 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l12" >Riga 12:</td>
<td colspan="2" class="diff-lineno">Riga 12:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Waterman-52-BCHR-Nib.jpg|thumb|left|Close-up view of the nib of a [[Waterman 52]] ]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Waterman-52-BCHR-Nib.jpg|thumb|left|Close-up view of the nib of a [[Waterman 52]] ]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Nelle stilografiche questo controllo del deflusso viene realizzato grazie alla presenza del canale dell'</del>[[<del class="diffchange diffchange-inline">alimentatore</del>]], <del class="diffchange diffchange-inline">attraverso cui l'inchiostro può arrivare</del>, <del class="diffchange diffchange-inline">per l'effetto combinato della gravità e della capillarità</del>, <del class="diffchange diffchange-inline">all'altezza delle due ali del </del>[[<del class="diffchange diffchange-inline">pennino</del>]]. <del class="diffchange diffchange-inline">Fintanto che la penna non viene usata la tensione superficiale impedisce che l'inchiostro lasci l'alimentatore e il pennino</del>, <del class="diffchange diffchange-inline">almeno fintanto che questi sono correttamente montati e non vi è altro passaggio libero che quello del canale dell'alimentatore</del>. </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">In fountain pens, this flow control is achieved thanks to the presence of the </ins>[[<ins class="diffchange diffchange-inline">feeder</ins>]] <ins class="diffchange diffchange-inline">channel</ins>, <ins class="diffchange diffchange-inline">through which the ink can reach</ins>, <ins class="diffchange diffchange-inline">due to the combined effect of gravity and capillarity</ins>, <ins class="diffchange diffchange-inline">the height of the two wings of the </ins>[[<ins class="diffchange diffchange-inline">nib</ins>]]. <ins class="diffchange diffchange-inline">As long as the pen is not used, the surface tension prevents the ink from leaving the feeder and the nib</ins>, <ins class="diffchange diffchange-inline">at least as long as they are correctly mounted and there is no other free passage than that of the feeder channel</ins>. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Il tratto finale del percorso viene fatto dall'inchiostro per capillarità, passando dal canale nella fenditura fra le due ali del pennino fino a raggiungere la punta, ed è questa stessa capillarità che lo trattiene e ne impedisce il versamento. Ma appena si appoggia la punta del pennino su un foglio (o un'altra superficie adeguata), è la stessa tensione superficiale, applicata stavolta anche al contatto fra la punta e la carta, che fa si che l'inchiostro si depositi su quest'ultima e continui a fluire mentre si scrive passando attraverso la [[fenditura]], almeno fintanto che (nel caso di pennini flessibili) non si preme in maniera eccessiva allargandola troppo, così da interrompere l'effetto della capillarità ed il conseguente flusso di inchiostro.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Il tratto finale del percorso viene fatto dall'inchiostro per capillarità, passando dal canale nella fenditura fra le due ali del pennino fino a raggiungere la punta, ed è questa stessa capillarità che lo trattiene e ne impedisce il versamento. Ma appena si appoggia la punta del pennino su un foglio (o un'altra superficie adeguata), è la stessa tensione superficiale, applicata stavolta anche al contatto fra la punta e la carta, che fa si che l'inchiostro si depositi su quest'ultima e continui a fluire mentre si scrive passando attraverso la [[fenditura]], almeno fintanto che (nel caso di pennini flessibili) non si preme in maniera eccessiva allargandola troppo, così da interrompere l'effetto della capillarità ed il conseguente flusso di inchiostro.</div></td></tr>
</table>Piccardi