Risultati della ricerca

...side to facilitate the passage of the ink by capillarity. Through the same channel the air that replaces the ink that comes out of the pen tank flows (even if ...e of problem, such as the creation of appropriate side pockets next to the channel (as in the ''[[Spoon feed]]'' of [[Waterman]]). Over the years, the develop

...on Waterman'' get his first patent ({{Cite patent|US|293545}}) for a multi-channel feeder

...rrectly mounted and there is no other free passage than that of the feeder channel. ...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

File:Art-Pen-Feed-Channel-AfterCleaning.jpg|dopo la pulizia

...olumbus'' began to put attention in to technical innovations. A new double channel feeder, used on top line models until the 40s, was created, and the company