US602829A - William p - Google Patents

Description

(No Model.)

W. P. COUPER.

FOUNTAIN PEN.

Patented Apr. 26, 1898.

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UNITED STATES Amami miren.

IVILLIAM l). COUPER, OF WASI'IINGTON, DISTRICT OF COLUMBIA.

FOUNTAiN-PEN.

SPECIFICATION forming part 0f Letters Patent N0. 602,829, dated April 26, ISQS. Application filed Gotober 29, 1897. Serial No. 656,805, (No model.)

To @ZZ whom t may concern.-

Beit known that I, WILLIAM P. Course, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Fountain-Peu Filling Attachments; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings.

The object of my invention is to provide a fountain-pen with attachments for filling the pen, which attachments form a permanent part of the pen; and I have sought to reduce such a construction to the utmost simplicity compatible with convenient and efficient operation.

To this end my invention consists in the construction and combinations set out in the claims.

In the drawings, Figure l is a longitudinal sectional view of a fountain-pen containing my attachments. Fig. 2 is a side elevation of the feeder with the stem and piston formed thereon. Fig. 3 is a view of the cap or cover. Fig. 4C is a perspective view of the pistoncover and valve'seat; and Fig. 5 is aperspective view of the piston, the stem being broken near the piston.

The casingofj has a cylindrical bore, and its exterior tapers toward the ends like a cigar. At the lower end the usual feeder-carrying sleeve h is screwed into the case a, and its exterior surface conforms to that of the case d. The pen o and feeder d are held in the sleeve in the usual manner, and the feeder 'has a capillary channel e for the ink. The upper end of the casing a is reduced and screw threaded for a short distance at f, and beyond this reduced portion the casing is formed into a short nozzle g. A nozzle-cap 7?. is threaded to screw on the upper end of the casing until it rests against and closes the mouth of the nozzle. If desired, a piece of rubber or cork may be placed in the nozzle-cap to more securely close the nozzle.

A stem 1I is formed on or attached to the feeder d and extends to a point near the upper end of the bore, where a piston j is formed on the stem. A piston-cap 7c is screwed on the piston j, and this cap completely fills the bore.

A pocket Z l is formed partly in the piston cap and partly in the piston, and a metal or rubber ball o of less diameter than the pocket occupies the pocket and seats itself in the part of the pocket Z contained in the pistoncap, so that it closes an opening m in the cap, thus forming a valve. Passages n and n in the piston allow the ink to iiow from the pocket Z Z to the bore of the casing.

A screw p may be used to prevent the piston from leaving the casing, but it could be dispensed with, if desired.

The usual cap q is used to cover the penpoint when not in use, and it maybe slipped over the upper end of the casing for safe keeping when writing is being done.

The operation of my attachment is as follows: When it is desired to ll the reservoir with ink, the nozzle-cap h is unscrewed and the feeder-sleeve b is removed. The nozzle g is then immersed in the ink, and the feeder is drawn up out of the casing, carrying with it the piston, the ink following the piston under atmospheric pressure. This motion is continued until the piston comes in contact with the screw p. The nozzle is now withdrawn from the ink, still keeping the casing vertical, but the ink will not flow out of the nozzle, because the piston and valve keep the casing airtight. The nozzle cap is now screwed to place, the casin g still remaining vertical. The nozzle being closed, the piston is slowly forced back to its original position, the valve rising and allowing the ink to pass the piston through the passages in the piston. The feeder-sleeve is now screwed to place and the pen is ready for use.

It will be seen that with very little complication I have provided for filling the pen without the use of any parts other than those contained in the fountain-pen.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. A fountain-pen having the usual writing appliances at one end of the casing and havingafilling-nozzle at the other end, and means for filling the reservoir through thenozzle, substantially, as described.

2. A fountain-pen having a pen-point and feeder at one end and having a nozzle at the IOO n Opposite end, and having a piston Within the casing for drawing the ink through the lling-nozzle and into the easing and a Valve in the piston for permitting the ink to pass the piston, substantially, as described.

3. In e fountain-pen, the combination of a. easing having a, pen-point and feeder at one end3 of a filling-nozzle at Jshe opposite end of the easng, a stem secured to the feeder and extending substantially the len gth of the eesing, a. piston carried by the stem, and a. valve in the piston and opening toward the stem, substantially, es described.

4:. In afountan-pen, the combination of a easing having: a. pen-point and feeder at one end, of a lling-nozzle et the opposite end of the casing, e stem secured to the feeder and extending substantially the length of the easing, a piston carried by the stem, a, Valve in the piston that opens toward the stem, a screw in `the casing to limit the outward movement of the piston, substantially, as described.

5. In fountain-pen, lille combination of a casing having a pen-point and feeder at one end, and having a. lling-nozzle at the opposite end, of a stem formed on the feeder, e piston en the stem, e valve in the piston that opens toward Jalle stern, and a screw in the easing to limit Jshe outward movement of the piston substani ally, as described.

In tesimony whereof I f x my signature in prese nce of two Wltness es.

' y I ALTA l P. COUPER.

Vifn.

IRVIN P. DISNEY, EDWIN J. PRINDLE.

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