US1804522A - Fountain pen - Google Patents

Description

May 12, 1931. WALSH 1,804,522

FOUNTAIN PEN Filed July 5, 1 29 Patented May 12, 1931 UNITED SATES p NT C ERANK T. WALSH, or SPRINGFIELD, MASSACHUSETTS, ASSIGNOR To 'LEEoEuE FOUN- TAIN PEN co., INc., or SPRINGFIELD, M SSAcIIuSETTs;A CORPORATION. or MAS- SACI-IUSETTS FOUNTAIN PEN Application filed July 3, 1929. Serial N i -375,764.

thrust of the finger on the reservoir and dis- 5 tributes it over the entire surface thereof to more completely flatten the same when it is desired to refill the pen. The finger opening may be exposed by a sliding cap movable so that it either covers or is drawn back from the finger opening.

It is one object of this invention to improve upon former pens of this general 1 I p i I ilar to those heretofore proposed and illustype in providing a simpler and less expensively constructed presser bar and a simpler guiding mechanism for it. A further object is to provide presser bar mechanism which will have a minimum number of parts and which will, therefore, be subject to the least possible trouble in service. A further object of the invention is to provide a simple restraining means for the sliding cap so that in exposing the finger opening the cap will be stopped automatically in its movement but may be completely removed if desired. The invention will be described in connection with the accompanying drawings in which:

Fig. 1 is a side elevation of a pen embodying my invention;

Fig. 2 is a similar view with the usual nib protectingcap removed and with the sliding cap moved so as to uncover the finger opening;

Fig. 3 is a similar view showing the sliding cap entirely removed;

Fig. 4: is a view of the sliding cap partly in section;

Fig. 5 is an enlarged end view taken on line 5-5 of Fig. 3;

Fig. 6 is a view similar to Fig. 5 showing the flexible reservoir compressed and taken on line 6-6 of Fig. 8;

Fig. 7 is a fragmentary longitudinal section through the pen with the movable cap into position t'olexpose the finger opening, taken on a'still larger scale; and

Fig. 8 is a view similar to a portion of Fig. 7 but on a smaller scale and showing the flexible reservoir compressed.

The fountain pen which I have illustrated 'has' a body portion 10 provided with the usual pen point or nib 11. A protective cap 12 is Screwedupon this body porti'on in the usual manner, Within the body portion 10 is secured a tube 13 which may be formed conveniently ofthin brass and which is provided with a finger opening l' l. Positioned within the tube 13 and'connected to the pen nib in'any suitable or conventional manner isa flexible reservoir15,preferably in the form of a rubber tube closed at one end.

The pen as thus described is generally simt'rated, for example, in the patent to Laugh- 1in,No.1,04l2,804,of October 29,1912. The

present pen is provided with a presser jbar 16, preferably slightly concave in cross section,as shown inFigi 5, and'mounted freely 7 within the tube 13, except as hereinafter described, so as to overliethe flexible reservoir.

the rear end of the presserbar (thatjis,

the'j'end remote from the pen nib) the presser 'bar is provided with a slot 17 located substantially "centrally of the bar and extending transversely through a portion only of its width." Into this slot fits" a tongue 18, preferably formedgintegral with the tube 13.

A convenient way of forming this tongue .18 is by strikingit up out of thebody materialyof the sleeve soasj to' leave a slot 19, as shown in Fig.' Thisslot has no funcp of its own, "merely representing the ma- 'terialof'the tube which hasbeen utilized in the position of Fig. 1. The cap may be integral if desired but preferably has an internal sleeve 22 of brass or similar material provided with an annular-recess 23. Into this recess a lip 24, formed by spinning or burring the end of the tube 13 outwardly,

- V is adapted to fit. In order to give the desired springiness to the end of the tube so that the lip may snap into and out of the groove 23, the tube 13 is split, "preferably in two places (as shown at 25) for a short distance from the end. When the cap is drawn to the position of Figs. 2 and 7, the lip 24 will spring into the recess 23 and stop the motion of the cap. In this position the finger opening 14 is exposed and no further movement offthe cap is, therefore, desirable. If, however, it is desired to remove the cap entirely, a further pull may be given to it, whereupon the lip 24: will again spring out of the recess 23 and permit the cap to be pulled completely off the end of the tube.

What I claim is:

1. In a fountain pen, a tube having a finger opening in its wall, a collapsible reservoir within the tube, a single presser bar bearing against one side of the reservoir within the tube and extending past the finger opening, said presser bar having a transverse'slot adjacent one end, a tongue struck up integrally from the material of the tube and extending part, way only across the interiorof the tube, said tongue passing through the slot in the presser bar so as to form the sole guiding connection between the tube and the resser bar.

2. In a fountain pen, a tube having a finger open n n i w a 1 bo y secured over the tube at one side of the finger opening, a cap slidable over the tube to cover or to. uneover the finger opening, the cap being formed with an internal annular groove, and anintegral circumferential lip formed at the end of the tube and projecting outwardly therefrom so. as to engage in the annular groove, the end of the tube havingaxially extending slots permitting the lip to yield inwardly and to pass by the groove in either direction, whereby the lip will spring into the groove when the cap is moved to uncover the finger opening but will yield when more than normal force is exs nature.-

erted on the cap to slide it. off the tube,

In testimony whereof I have afiixed my FRANK .T.- WAL H.

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