US1574929A

US1574929A - Fountain pen

Info

Publication number: US1574929A
Application number: US548687A
Authority: US
Inventors: Robert T Pollock
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-04-01
Filing date: 1922-04-01
Publication date: 1926-03-02
Anticipated expiration: 1943-03-02

Description

March 2 1926. 1,574,929

, R. T. PoLLocK FOUNTAIN PEN Original Filed April l, 1922 WEEE l llaf /Af//// r/ /1 latented Mar. 2, 1926.

UNITED STATES PATENT OFFICE.

ROBERT T. POLLOCK, 0F BOSTON, MASSACHUSETTS.

FOUNTAIN PEN.

Application led April 1, 1922, Serial No. 548,687. Renewed'lllay 4, 1925.

To all whomz't may concern:

13e it known that I, Ronnn'r T. PoLLoCK, a. citizen of the llnited States, residing in the city of Boston, county of Suffolk. and State otV l\'la.ssachusetts, have invented eertain new and useful Improvements in Fountain Pens, of which the following is a specification.

This invent-lon relates to nnlnovements 1u fountain pens and refers more particularly to the feed of a fountain pen in which the ink instead of flowing through an open channel in the top of the feed, is conducted to the penpoint through a closed duct `so that the ink is delivered near the end of the pen and is prevented from scoping to the sides of the pen as it does in common practice.

Fig. 14 is a sectional view of the feed portion of the pen. Fig. 2 is a top view of the feed. Fig. 3 is an end View taken from the end of the feed which is inserted in the barrel of the pen. Figure 4 is a longitudinal sectional view of a portion of the feed.

Referring to the drawings, the improved type of pen feed is shown inserted in the barrel of a pen 1 which has inserted therein a capsule or ink. container' 2 serving as a reservoir for the ink supply. The pen feed 3 is inserted in the open end of the pen and has mounted upon a saddle formed in the top of the feed, a pen point 4. The closure cap 5 is shown screwed in osition on the pen barrel. The pen feed 1s shaped at 3 to form a puncturing point so that when the capsule or ink contamer is placed in the barrel, it is unctured by the end of the feed and the lnk permitted to flow through the duct 6 of the pen feed. This duct as shown in Figs. 1 and 2 is nothing more than a cylindrical hole bored longitudinally of the pen' feed, extending substantially its length. It is open so that the ink from the ink container or cartridge can flow freely along the duct and rise onto the short Well (Sa which connects With the horizontal duct and extends at right angles thereto to the surface of the pen feed beneath the pen oint. Thus the ink is delivered through a closed duct from the ink container or ink su )ply directly to the pen and is not permitted to flow down an open top duet as is commonly the practice, along the top of the feed vfrom which it seeps tol either side of the feed and pen point, producing accumulations of solid and semi-solid substances which are objectionable as they obstruct the free flow of ink from the ink supply to the pen point and produce a very uncleanly condition about the end of the pen point and ink feed. By delivering the ink substantially to the end of the pen point by means of a closed duct as shown, the seepage l'ieneath the pen to both sides of the feed is in'actically eliminated, and practically all of the. ink delivered directly to the writing point. lf desired, the duct may be riled by or spiral riflings to permit the free flow of air both to and from the ink supply and assist in producing a constant and freelow of ink in-writing.

Although this type of feed -has been shown in connection with a cartridge pen, it is understood that it may be used in connection with any type of fountain pen in which the ink is conducted from an ink supply in the barrel and delivered to the pen point. f

I claim as my' invention: Y

1. In a fountain pen, the combination with a pen barrel containing the ink supply, of a -pen mounted therein, an ink feed communicating between the ink supply and the pen point, said ink feed comprising a member haring a closed rifled duct extending longitudinally its length and adapted to deliver the ink from the ink supply substantially at the writing point' of the pen.

`its length to facilitate the passage of air and ink, said duct extending longitudinally the length of the feed member and adapted to deliver ink `from the ink su ply substantially at the writing point of t repen.

3. In 'a fountain pen, the combinationA with a pen barrel containing the ink supply, of apen mounted therein, an ink feed communicating between the ink supply and the pen point, said ink feed comprising a member having a closed duct longitudinally grooved to facilitate the passage of air and ink, said duct extending longitudinally the length of the feed member and adapted to deliver ink from the ink supply'substantially at the writing point of the pen.

ROBERT T. POLLOCK.