US311861A

US311861A - Fountain-pen

Info

Publication number: US311861A
Authority: US
Publication date: 1885-02-03
Anticipated expiration: 1902-02-03

Description

' (No Model.)

B. TYRRELL.

. FOUNTAIN PEN. No. 311,861. Patented Feb. 3,1885.

N. PETERS. mmwuum ra m Wnsmnglmv n.c

I Unrrsn STATES Parent Caries.

EDW'ARD TYRRELL, OF CINCINNATI, OHIO.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 311,861, dated February 3, 1885.

Application filed February 3, 1883.

To all whom it may concern.-

Be it known that I, EDWARD TYRRELL, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Fountain -Pens, of which the following is a specification.

My invent-ion relates to certain improve ments in fountainpens; and it consists of a certain combination of parts, as will be hereinafter described, and pointed out in the claims.

The various features of my invention will be more fully described in the following description of the accompanying drawings, in which Figure l is a central section of my in1- proved pen. Fig. 2 is a detailed view of the shield or guide in which the hollow valve-rod moves. Fig. 3 is a detailed view of the hollow valve-rod or air-conduit.

A represents the outside cylinder or barrel of the pen; B, the shield or guide for the valverod or air-conduit; C, the hollow valverod or air-conduit; C, a collar on same,against which the spring seats; a, the air-passage through rod C; D. a screw-cap on the end of cylinder A; E, an elastic cushion on the inner face of cap D; F, a spiral spring around rod C, and operating the same; f, the beveled end of rod C, which forms the valve; G, the end piece tapping into cylinderAat its lower end, and containing the valve and tube for conveying ink to the pen; H, the ink-tube; H, the beveled valveseat operating with the end of rod 0. It represents the ink-passage to the pen; I, a ferrule, within which the pen is secured; .P, the pen.

The operation of my device is as follows: When it is desired to fill the ink-cylinder, end piece G is unscrewed, and ink is poured into cylinder A around shield B. End piece G is then replaced, the cap D partially unscrewed, thus admitting air through vent 0 into its cavity around the end of hollow rod 0.

The air passes through ir-passage c and out' at its lower end into the outside space around the shield 13, thus allowing the ink to fiow. When the cap D is unscrewed, spring F pushes rod 0 away from its seat and allows the ink to pass through passage h to the pen. In use this arrangement of the various parts is very (No model.)

advantageous, as it enables the operator to readily regulate the flow of ink by adjusting the cap D. The shield B has an enlargement at its end, which fits very closely into the upper end of the outside cylinder, A, and pre vents any ink from escaping. In the screwthread upon the upper enlarged end of shield B is left a blank forming a vent, 0, through which air is admitted when the said cap is loosened. The elastic cushion E upon the inner face of cap D presses upon the upper end of rod C so as to force it down to its seat even when the cap D is not screwed entirely down upon the cylinder.

I do not wish to limit myself to the aforesaid construction of the valve-rod and air-passage, as it is obvious that, instead the long shield B, within which rod C moves, I might use only a short close-fitting collar on the inside of cylinder A. It is also obvious that the valve-rod might be made solid, and the outside shield, B, made large enough to allow the air to pass around the valve-rod.

My improved valve rod may be used in nearly all the ordinary iountain-pcns with but slight alteration.

I claim- 1. In a fountain-pen, the con'ibination, substnntially as described, of barrel A, having thereon a tubular shield, B, extending nearly the length of said barrel, with a cap, I), and valve-rod C, extending through the shield, and spring F, for automatically lifting said valverod, and end piece, G, carrying ink-tube II, having valveseat Ii and pen P, as set forth.

2. In combination with the outside cylinder or barrel of a fountaiupen and its ink-tube, the valve-rod carrying a collar, C,a11d a spring, F, for automatically lifting the valverod, a shield or guide, B, for inclosing and guiding the valve-rod, the valve and valve-seat, the regulatingcap and elastic cushion, all constructed and arranged to operate substantial] y as described.

In testimony whereof I have hereunto set in y hand in the presence of two subscribing witnesscs.

EDIVARD TYR-RELL.

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