US874738A - Fountain-pen. - Google Patents

Description

PATENTED DEC. 24, 1907.

L. F. CRAWFORD.

FOUNTAIN PEN. APPL'IOATION FILED mus.

- an m n fez to the pen.

'1 is the UNITED STATES LAFAYETTE F. CRAWFORD, OF DENVER, COLORADO.

\ FOUNTAIN-PEN.

Specification of Letters Patent. Application filed .l'iuy 3. 1906. Serial No. 324,686.

Patented Dec. 24, 1907.

To all whom it may concern:

Be it known that I, LAFAYETTE F. CRAW- FORD, a citizen of the United States, residing at Denver, in the county of Denver and State of Colorado, have invented certain new and useful Improvements in Fountain-Pens, of which the following is a specification.

'My invention relates to an improvement in fountain pens, and more particularly the means for filling the pen with ink.

The object is to render it unnecessary to remove the point in order to pen whereby greatly lessening the difficulty and facilitating the process of refilling a fountain en. I

With these'objects in view my invention consists in certain novel features of construc tion and combinations of parts which will be hereinafter described and pointed out in the claims.

In the accompanying drawings :-Figure 1 is a view in side elevation with parts broken away and in section to show the internal construction. Fig. '2 is an enlarged sectional view through the plunger and cap. Fig. 3 is a view showing a form of key. Fig. 4 is a view showing a modified form of key applied Fig. 5 is a view similar to Fig. 1, showing this modified form of key screwed to the plunger.

A, represents the barrel of the pen holder, en section and 2 the pen point.

The p unger for filling comprises a head 4 and a stem, the outer portion 5 being threaded and the inner portion 6, preferably with out threads, a shoulder 7 being formed between the head and stem. A washer 8 of leather or other soft material is secured to the head by a screw or equivalent device 9, this Washer being of a size to snugly fit the bore of the barrel in order to create the required suction therein as the plunger is pulled out in the act of filling the barrel of the holder. A second washer 10, is mounted on the threadless portion 6, of the stem against the shoulder 7, in position to strike the llangc 11 at the outer end of the barrel, its function being to pre- Vent the ink from leaking out at that end, it affording an air and ink tight closure or stopper for the barrel. The usual cap 12 at the outer end of the pen holder, instead of screwing directly upon the end of the holder is adapted to screw upon the threaded end 5 of the plunger, which end protrudes through the outer end of the pen holder when in its normal position after the pen has been lilled and --the screwing of the cap upon this threaded end of the plunger draws it tightly in place" and the washer is compressed between the shoulder 7 on the plunger and the flange 11 at the outer end of the holder thus making a tight closure at that point.

The plunger is operated by any approved form of removable key, two of whichI have illustrated in the drawings, one is a plain, straight rod 13 with a head 14 on one end, and'a screwhread 19, on the other, which screws into the threaded orifice 15 in the stem of the plunger whereby it may readily be applied key is preferably held frictionally upon the end 16 of the pen holder by the spiral end 17 which snugly embraces the end of the holder. This key is provided with a joint 18, in the center whereby it. may be folded and at its outer end is provided with a screw-thread to screw into the. orifice in the plunger. This form of key has a secondary function of providing a pocket fastener when folded to hook the holder in the vest-pocket, against accidental loss or displacement.

The operation of filling the pen is perfectly obvious. The cap 12 is first unscrewed and the key is screwed into the orifice in the plunger, and the latter is forced down to the lower end of thepen holder, the pen point without the necessity of being removed, is thereupon inserted in the ink, and. the plunger is drawn upwardly, thus by'suction filling the barrel of the pen holder. When pulled as far as it will go, the key is removed, and the cap is replaced by screwing it to the threads of the stem whereby the pen is ready for use. In this way the filling of the pen is not at all troublesome or diflicult and it may be done without taking the pen apart or removing the pen point or soiling the fingers in the slightest degree.

Slight additional changes might be resorted to in the form and arrangemcnt of the several parts described without departing from the spirit and scope of my invention, and hence I do not wish to limit myself to the exact construction herein set forth, but:

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. A fountain pen comprising a pen holder and having an ink filling plunger fitted to the bore of the holder, said plunger comprising a or removed. The other form of I head and threaded stem with a shoulder the stem against the shoulder and the holder having an internal flange at its outer end, he

- tween which and .the shoulder on the plunger a key adapted to be the washer is adapted to beheld and com pressed, anda removable cap adapted to be screwed to the stem of the plunger whereby the plunger and cap are held in position and the washer is compressed to form an air and ink tight joint at the end of the pen.

2. In a fountain pen, the combination with a barrel and a plunger having a threaded stem of sufficient length to protrude through an end of the barrel when in one of its extreme positions of a key adapted to be removably secured to the protruding end'of the plunger and a cap constructed and adapted to screw upon the protruding end of the plunger when the key is removed whereby to fasten the plunger and ea in position.

3. In a fountain pen, the com a barrel and a plunger the barrel having an orifice at one end and the plunger provided with a threaded stem adapted throu h said orifice, said stem havin an orifice w iich extends only partly throng it and removably secured in said orifice'in the stem.

4. In a fountain pen, the combination with the barrel, of a key secured to a part of the pen and normally lying alongside the latter whereby space is formed between the pen and key to receive the pocket for fastening the pen to the pocket.

5. In a fountain pen, the combination with .and

ination with to protrude the barrel, of a key secured to a part of the pen and normally lying alongside the latter whereby space is formed between the pen key to receive the pocket for fastening the pen to the pocket, said key having a joint formed therein whereby it may be folded.

6. In a fountain pen, the combination with the barrel, of a key secured to a part of the v pen and normally lying alongside the latter whereby space is formed between the pen and key to receive the pocket for fastening the pen to the pocket, said key being friction-- ally held upon a part of the pen holder.

7. In a fountain pen, the combination with the barrel, of a'key normally lying alongside the barrel whereby space is formed between the pen and key to receive the pocket for fastening the pen to the pocket, said key being foldable and frictionally and adjustably held upon a section of the pen holder.

8. A combined piston-rod and holding clip for use with fountain pens screw-threaded at one end and provided at the other with yielding means for adjustably attaching it to a part of vthe pen when detached from the filling piston-head, substantially as described In testimony whereof I aflix my signature in presence of two witnesses.

LAFAYETTE F. CRAWFORD. WVitnesses:

GEORGE ALLAN SMITH, EDWARD L. SHANNON.

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