US1038068A - Fountain-pen. - Google Patents

Description

G. F. BARRETT.

FOUNTAIN PEN.

APPLICATION FILED PEB.16, 1912.

1,038,068. Patented sept. 10,1912.

UNITED sTATEs PATENT oEEIcE.

GEORGE F. BARRETT, 0F RIDGEFIELD PARK, NEW JERSEY.

FOUNTAIN-PEN.

Specification of Letters Batent.

Patented Sept. 10, 1912.

, Application filed February 16, 1912: Serial No. 878,044.

objectof the invention is to provide the pen with means for conveniently filling the same with ink and to insure against the accidental discharge of the ink froml the pen when the same has been filled.

To the accomplishment of the above objects, and to such others asmay hereinafter appear, the invention comprises a fountain pen provided with a compressible ink reservoir contained in a barrel member having a finger opening, a guard sleeve having a` linger opening loosely mounted on said barrel member, and a guard rinfr screw connected to s aid` barrel member for retaining said guard sleeve in closed position.

While the invention is to be described with particular reference to the details of construction, the same is not .to be considered as limited thereto, as many changes may `be made and still fall within the scope of the a pended claim.

Re erring to the drawings: Figure 1 is a front elevation of a fountain pen made in accordance with my invention, the guard sleeve being shown in closed position for use. Fig. 2 is a view, similar to Fig. '1, showing the guard sleeve in open position to permit of the ink reservoir being filled. Fig. 3 is a side viewof Fig. 2 showmg the guard sleeve, guard ring and cap in cross section.

In the drawings, A designates the body or barrel member of the en, which is provided at one end with t e pen section or plug B whereon the pen point C is carried in a well known manner. With the pensection is connected in a well known way, an elastic or compressible ink-reservoir D, ,which isusually made of a soft rubber tube, closed at its upper end and arranged to communicate at its lower end with the feed opening of said pen-section, so'that when and said soft rubber tube D is compressed to expel the air from its interior through .such feed opening, the elasticity of the walls of said tube or reservoir D will upon release of pressure upon the same, serve `to cause said tube to resume its original form, so that ink, from the supply in which the pen point has been dipped, will be drawn up through the feed opening to fill said tube or reservoir with sufficient ink to permit of the pen being used to Write for ya considerable time,

A metal -strip E is provided which extends along the side of thetube or reservoir D which is adapted to compress said reservoir along substantially itsentire length when pressure is applied at about the central part of the said strip, and F desighates an elliptical opening provided in one side of the barrel member A at or near the central part thereofand of dimensions suficient to permitof convenient insertion of the tip of thefinger of the user to press the stripE so as to' compress the reservoir D as before explained.

The opening F in the barrel member is covered by means of aguard sleeve Gr, which lits loosely 4over the barrel member, the guard sleeve being provided on one side with an elliptical opening H adapted to register ywiththe elliptical opening F in the barrel member when the guard sleeve is turned to the position shown Hin Fig. 2. When the guard sleeve G is turned a half a revolution from the position shown in Fig. 2 it assumes the position shownin Fig. 1 so as to cover and protect the ink reservoir D.

In order to prevent accidental rotation or displacement of the guard sleeve G, the barrel member A of the pen is provided with a shoulder K against which the guard sleeve G is'forced by the actionof a guard ring L which is suitably threaded and arranged to fit upon suitable threads M made on the end of the barrel member and onwhich the ca N is also adapted to be screwed. It 1s to be notedthat the cap N is adapted to be screwed on to the end of the barrel member onl to a certain set distance, so as to leave su cient room for the free movement back and forth uponthe threads M of the lard ring L; and the internal diameter o this cap N is customarily such, with respect to that of the screw threaded portion M, that the. ca fits very tightly, and can be unscrewe only with difficulty, whereas the guard ring L has customaril afreer fit on the screw threaded part The cap N therefore forms a stop for the guard ring L, preventing the same from bein unscrewed so far that it may drop o and be lost. It will be obvious that only a slight unscrewing of the ring L isnecessary in order to free the guard sleeve G and permit the latter to be turned. Therefore there is no occasion, in the use of the pen, to unscrew the ring L more than a turn or two, but careless users would be very 'apt to unscreW the ring L completely and lose it, except for the provision of the stop formed by the cap N.

From the above it will be seen that in order to fill the ink reservoir it is necessary to irst unscrew the guard ring L by giving the same about a half turn so as to relieve the pressure against the end of the guard sleeve G, the other end of t-he sleeve being forced against the shoulder K. When this has beendone the guard sleeve can be easily turned to the position shown in Fig. 2, and the pen filled, after which the guard sleeve is turned to the closed position and the guard ring Lscrewed against the end of it to hold itsecurely in position as shown in Fig. l, in which position the pen is ready for use.

From the above description it will be seen that the improved fountain pen constructed according to `my invention is of an extremely simple and inexpensive nature and ypen is filled to is especially Well adapted for use by reason of the readiness and convenience With which the ink-reservoir may be filled When empty, and of the security and ease With which the opening in the barrel is closed when the prevent accidental spilling of the ink. p

What I claim is.:-

A fountain'pen comprising a barrel having a finger opening in its Wall and having, adjacent to said opening, a shoulder, a compressible .ink-reservoir in the barrel exposed at the nger opening of the barrel, and a sleeve having a finger opening, one end of said sleeve being arranged to come in contact with the shoulder on said barrel, a guard ring screw connected to said barrel for forcing and retaining said sleeve against said shoulde-r as and for the purposes set forth, and a further member screw connected to said barrel in rear of said guard ring, there being a slight distance bet-Ween said further member and guard ring when the ,giard ring is pressing the sleeve against said shoulder; whereby the said further M screw threaded member forms a stop for the guard ring.

In testimonywhereof I have signed this specification in the presence of two subscribing witnesses.

GEORGE F. BARRETT.

Witnesses:

LEO J. MATrY, D. A. DAVIS.

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