27 August 2019
16 August 2019
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Creata pagina con "The system was simple and effective, and also allowed for better filling than the later lever filler, as the rubber tank could be completely compressed. Despite its techni..."
Creata pagina con "To avoid accidentally pressing the ''crescent filler'' the pens were also equipped with a ring retainer that went to fit into the slot under the bow, so that it was locked in..."
Creata pagina con "The ''crescent filler'' is based on the realization of a particular pressure bar on which a metal crescent shaped bow is welded (from which derives the name given to the syste..."
Creata pagina con "center|500px|Diagram of a pen with ''crescent filler''"
Creata pagina con "The first truly efficient and functional automatic filling system based on the compression of a rubber tank was the famous ''crescent filler'', designed by Roy Conklin' wh..."
Creata pagina con "Crescent filler"