US790101A - Fountain-pen. - Google Patents

Description

No. 790,101. PATENTED MAY 1 1-905.

. J. BLAIR.

FOUNTAIN PEN.

APPLICATION FILED NOV. 29, 1904.

@3 14 "mow A No. 790,101.

. UNITED STATES Patented May 16, 1905.

PATENT OEEIcE.

FOUNTAIN-PEN.

SPECIFICATION forming part of Iaetters Patent No. 790,101, dated May 16, 1905. Application filed November 29,1904. Serial No. 234,733.

To all whom it may concern:

Be it known that I, JOHN BLAIR, a citizen of I the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Fountain-Pens, of which the following is a specification.

- My invention relates to fountain-pens in which the ink is supplied to the fountain or ink-chamberin the body of the holder by means of suction generated by manipulating the suction-cap of the pen.

The accompanying drawings illustrate the invention, its various parts being referred to by letters, similar letters denoting corresponding parts in both views.

Figure l is a fragmentary side View of the invention, partly in section and with the cap unscrewed. Fig. 2 is a cross-section on line :20 w of Fig. 1.

The letter A designates the body of the pen, having the reservoir on ink-chamber within. At its rear end a it is ground exteriorly straight for about one-half inch and then tapered forward slightly. Its other end, a, is threaded within and without for juncture with the pen-section and the pen-section cap.

B is the suction-cap, having a metal lining b to prevent spreading and a pin 6' to hold the lining securely fixed in place. A terminal hole 6 is also provided to permit the nib f on the pen-section cap F to be passed through into the socket of the plug O. This cap B contacts closely with the straight portion a of the body A, which insures a sufficient airtight connection therewith. On account of the slight bevel of the body the cap does not bear upon it, and so is the more easily and gradually drawn off.

The plug O is screwed into the rear end of the body A, and its terminal ball 0 is provided With a socket c for the nib f on the cap F when the latter is removed in order to use the end of the pen is then inserted in the ink and the suction-cap is slowly drawn off, producing a vacuum in the reservoir, which is filled by the ink entering through the pen-section D. The plug O is then screwed in tightly and the cap 6 replaced.

What I claim, and desire to secure, is

1'. In a self-filling pen a slightly-tapering body having a short portion of its rear end straight, a cap having a metallic lining to fit uponsaid straight portion, and a screw-plug in the end of said body inclosed by said cap, for the purpose herein set forth.

2. In a self-filling pen a slightly-tapering body having a short portion of its rear end straight, a cap having a terminal hole and a metallic lining which fits upon said straight portion, a screw-plug in the end of said body having a terminal socket and inclosed by said cap, substantially as herein set forth.

3. A fountain-pen having an easy-fitting screw-plug at its rear end to allow the passage of air over said screw.

4. In a fountain-pen a suction-cap, a fixed metallic lining therein to prevent its spreading and a pin to secure said lining in place, as described.

In testimony whereof I afiix my signature in presence of two subscribing Witnesses.

JOHN -BLAIR.

Witnesses:

J. Ross CoLrIoUN, I. R. BOW N.

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