Differenze tra le versioni di "Pneumatic filler/en"

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(Creata pagina con "<noinclude>{{ReferBox|Filling systems}}</noinclude>In 1924 ''Seth Chilton Crocker'' resumed the idea of the ''blow filler'' invented by his father ''Seth Sears Crocker'', furt...")
 
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<noinclude>{{ReferBox|Filling systems}}</noinclude>In 1924 ''Seth Chilton Crocker'' resumed the idea of the ''blow filler'' invented by his father ''Seth Sears Crocker'', further refining it using a new patent ({{Cite patent|US|1528379}}, by David J. La France). The new system was based on the fact that the body of the pen slides around a metal tube screwed on the nib assembly to which was mounted the classic rubber sac to compress. To perform this action, the outer barrel of the pen could slide on the inner barrel and the watertight seal between the two was made by a waxed wire placed at the end of the inner metal cylinder.  
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<noinclude>{{ReferBox|Filling systems}}</noinclude>In [[1924]] ''Seth Chilton Crocker'' resumed the idea of the ''blow filler'' invented by his father ''Seth Sears Crocker'', further refining it using a new patent ({{Cite patent|US|1528379}}, by David J. La France). The new system was based on the fact that the body of the pen slides around a metal tube screwed on the nib assembly to which was mounted the classic rubber sac to compress. To perform this action, the outer barrel of the pen could slide on the inner barrel and the watertight seal between the two was made by a waxed wire placed at the end of the inner metal cylinder.  
  
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Il fusto esterno della penna aveva, come per il ''[[blow filler]]'' un foro di areazione sul fondo. Il riempimento si otteneva facendo scorrere indietro il corpo della per poi riportarlo in posizione tenendo chiuso con un dito il foro sul fondo. In questo modo la pressione generata sul sacchetto ne provoca la compressione, ma una volta lasciato libero il foro di areazione la successiva espansione del sacchetto causa la suzione dell'inchiostro.
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The outer barrel of the pen had, as for the ''[[blow filler]]'' an aeration hole on the bottom. The filling was obtained by sliding back the body of the pen and then bringing it back into position by keeping the hole in the bottom closed with a finger. In this way the pressure generated on the sac causes its compression, but once left free the aeration hole the subsequent expansion of the sac causes the suction of the ink.
  
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Il sistema era semplice, funzionale e robusto, tutto lo spazio compreso nel fusto interno era utilizzabile per il sacchetto (senza necessità di una barra di pressione come per il caricamento a levetta) che permetteva alla [[Chilton]] di avere una autonomia nettamente superiore alle concorrenti. Inoltre questo semplice meccanismo era molto semplice da riparare, bastava svitare il fusto interno per sostituire il sacchetto. Infine la presenza del foro di areazione permetteva di mantenere bilanciata la pressione interna della penna, così che essa non presentava problemi di perdite o di assenza di inchiostro in caso di variazioni di pressione o temperatura.
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The system was simple, functional and sturdy, all the space included in the inner barrel was usable for the bag (without the need for a pressure bar as for [[lever filler]]) which allowed the [[Chilton]] to have a much higher autonomy than the competitors. Moreover this simple mechanism was very easy to repair, it was enough to unscrew the inner barrel to replace the sac. Finally, the presence of the aeration hole allowed to keep balanced the internal pressure of the pen, so that it did not present problems of leakage or absence of ink in case of variations in pressure or temperature.
  
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La semplicità era un punto di forza della [[Chilton]], il fusto esterno non era neanche ancorato al gruppo pennino, dato che questo non era necessario poiché per la precisione meccanica della lavorazione non scorreva durante l'uso. L'unico svantaggio era che per funzionare la penna richiedeva una maggiore lunghezza del gruppo pennino per poter maneggiare la penna una volta ritratto il corpo per il caricamento, che doveva essere effettuato con due mani. Dato che la filettatura per il cappuccio era posta sul fusto esterno della penna, (in modo che questo fosse bloccato quando la penna veniva chiusa), la cosa comportava anche una maggiore lunghezza del cappuccio, e quindi un aspetto poco proporzionato.
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Simplicity was a strength of the [[Chilton]], the outer barrel was not even anchored to the nib assembly, as this was not necessary because for the mechanical precision of the machining it did not flow during use. The only drawback was that to work the pen required a longer nib assembly length to handle the pen once the body had been retracted for fillig, which had to be done with two hands. Since the thread for the cap was placed on the outer barrel of the pen (so that it was locked when the pen was closed), this also meant a longer cap length, and therefore an unproportionate appearance.
  
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Per questo motivo nel 1927 venne creata una seconda versione del sistema di caricamento, in cui il fusto esterno era ancorato in maniera convenzionale al gruppo pennino, ed al suo posto veniva utilizzato per generare la depressione un secondo tubo metallico posto fra questo ed il fusto interno. Il sistema di depressione era ancorato al fondello della penna che costituiva un cappuccio cieco, in questo modo era sufficiente svitare il fondello della penna per effettuare il caricamento, che a questo punto poteva essere eseguito anche con una sola mano.
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For this reason in [[1927]] was created a second version of the filling system, in which the outer barrel was anchored conventionally to the nib assembly, and in its place was used to generate depression a second metal tube placed between it and the inner barrel. The depression system was anchored to the bottom of the pen which was a blind cap, in this way it was sufficient to unscrew the bottom of the pen to perform the loading, which at this point could be performed with one hand.
  
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La [[Chilton]] però non sembra essere l'unico produttore ad aver utilizzato questo sistema, infatti un sistema sostanzialmente identico denominato [[Compressor]] era stato inventato dalla [[Montblanc]] nel 1923 (brevetto {{Cite patent|DE|400356}}) ed utilizzato dal 1924 al 1929 per alcuni modelli, che però vennero commercializzati su scala ridotta (principalmente in Francia) e non riscossero un successo significativo.<noinclude>
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The [[Chilton]] however does not seem to be the only manufacturer to have used this system, in fact a substantially identical system called [[Compressor]] was invented by [[Montblanc]] in [[1923]] (patent {{Cite patent|DE|400356}}) and used from [[1924]] to [[1929]] for some models, which however were marketed on a small scale (mainly in France) and did not have a significant success.<noinclude>
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==Brevetti correlati==
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==Related Patents==
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{{ListsPatentsFeature|Pneumatic filler}}
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{{CategorizeArticle|Tecnica|Vocabolario|Sistemi di caricamento|Glossary|Technology|Filling systems}}
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[[Category:Translated Pages]]
 
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Versione attuale delle 11:23, 31 ott 2020

Filling systems

In 1924 Seth Chilton Crocker resumed the idea of the blow filler invented by his father Seth Sears Crocker, further refining it using a new patent (nº US-1528379, by David J. La France). The new system was based on the fact that the body of the pen slides around a metal tube screwed on the nib assembly to which was mounted the classic rubber sac to compress. To perform this action, the outer barrel of the pen could slide on the inner barrel and the watertight seal between the two was made by a waxed wire placed at the end of the inner metal cylinder.

The outer barrel of the pen had, as for the blow filler an aeration hole on the bottom. The filling was obtained by sliding back the body of the pen and then bringing it back into position by keeping the hole in the bottom closed with a finger. In this way the pressure generated on the sac causes its compression, but once left free the aeration hole the subsequent expansion of the sac causes the suction of the ink.

The system was simple, functional and sturdy, all the space included in the inner barrel was usable for the bag (without the need for a pressure bar as for lever filler) which allowed the Chilton to have a much higher autonomy than the competitors. Moreover this simple mechanism was very easy to repair, it was enough to unscrew the inner barrel to replace the sac. Finally, the presence of the aeration hole allowed to keep balanced the internal pressure of the pen, so that it did not present problems of leakage or absence of ink in case of variations in pressure or temperature.

Simplicity was a strength of the Chilton, the outer barrel was not even anchored to the nib assembly, as this was not necessary because for the mechanical precision of the machining it did not flow during use. The only drawback was that to work the pen required a longer nib assembly length to handle the pen once the body had been retracted for fillig, which had to be done with two hands. Since the thread for the cap was placed on the outer barrel of the pen (so that it was locked when the pen was closed), this also meant a longer cap length, and therefore an unproportionate appearance.

For this reason in 1927 was created a second version of the filling system, in which the outer barrel was anchored conventionally to the nib assembly, and in its place was used to generate depression a second metal tube placed between it and the inner barrel. The depression system was anchored to the bottom of the pen which was a blind cap, in this way it was sufficient to unscrew the bottom of the pen to perform the loading, which at this point could be performed with one hand.

The Chilton however does not seem to be the only manufacturer to have used this system, in fact a substantially identical system called Compressor was invented by Montblanc in 1923 (patent nº DE-400356) and used from 1924 to 1929 for some models, which however were marketed on a small scale (mainly in France) and did not have a significant success.

Related Patents

  • Patent n° US-825442, of 1906-07-10, requested on 1906-02-26, of Frederick William Bender, Unbranded. Fountain-pen.
  • Patent n° US-1134936, of 1915-04-06, requested on 1914-03-28, of Julius Abegg, Chilton. Fountain-pen.
  • Patent n° DE-294495, of 1916-10-10, requested on 1915-11-24, Kaweco. Füllfederhalter.
  • Patent n° DE-400356, of 1924-08-19, requested on 1923-03-28, Montblanc. Füllfederhalter.
  • Patent n° US-1528379, of 1925-03-03, requested on 1924-02-29, of David J. La France, Chilton. Fountain pen.
  • Patent n° US-1580093, of 1926-04-06, requested on 1925-06-11, of Henry J. Upton, Chilton. Fountain-pen.
  • Patent n° US-1755586, of 1930-04-22, requested on 1928-10-03, of Edward C. Berry, Chilton. Fountain pen.
  • Patent n° DE-504867, of 1930-08-08, requested on 1925-06-11, Chilton. Fuellfederhalter.
  • Patent n° US-1840110, of 1932-01-05, requested on 1930-07-18, of Henry Krause, Chilton. Fountain pen.
  • Patent n° US-1883160, of 1932-10-18, requested on 1929-09-06, of Henry J. Upton, Chilton. Frictional packing.
  • Patent n° US-1902633, of 1933-03-21, requested on 1931-10-24, of William J. Foley, Chilton. Fountain pen.
  • Patent n° US-2017109, of 1935-10-15, requested on 1932-12-05, of Milford G. Sypher, Chilton. Fountain pen.
  • Patent n° US-2017110, of 1935-10-15, requested on 1932-12-17, of Henry J. Upton, Chilton. Fountain pen.
  • Patent n° US-2139045, of 1938-12-06, requested on 1937-12-22, of Milford G. Sypher, Chilton. Fountain pen.
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