US176003A - Improvement in spring air-pistols - Google Patents

Description

I. JOHNSON & M. BYE.

SPRING AIR-PISTOL.

Patented Aprlll, 1876.

a1.\To.-176,003.

III

Inf/enfans,- f/-cr Janson N-PETERS, PKQTCL'THOGRAPHE. WASHINGTON. D CA NITED STATES PATENT CDEEICE IVER JOHNSON AND MARTIN BYE, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN SPRING AIR-PISTOLS.

Specification forming part of Letters Patent No. 176,003, dated April 11, 1876 application filed March 15, i876.

To all whom it may concern Beit known that we, IvER JOHNSON and MARTIN BYE, both of the city and county of Worcester and State of Massachusetts, have invented certain Improvements in Air Pistols and Guns, of which the following is a specication Our invention relates more particularly to that class of air pistols and guns from which the projectile is thrown by the discharge of the air from the chamber containing a springimpelled piston, whereby the force of the spring is transferred through the medium of the air to the projectile. It is designed to simplify the construction, and combine economy with practical facility of operation and efliciency of action. It consists in the construction and adaptation of the several parts to each, and to their oiices, substantially as hereinafter described, and shown in the accompanying drawin gs, which represent an air pistol, substantially embodying our invention.

In said drawings, Figure l is a side view with a portion of one side of the air-chamber removed, showing the cap in section and inside construction. Figs. 2 and 3 are on a larger scale, the latter having a section of Fig. 1 at the line .r y, and the former showing the spring-head of the rod (l in section, and the construction of its partsthe same letters indicating the same parts wherever they oc cur in all.

A is the air-chamber in which the piston F is pressed by a powerful spring toward the forward end, in which the cap Gis screwed. This cap has a slightly recessed seat, D, for the end of the barrelB, and ahole for the rod C, which compresses the spring, and a recess on its inner surface for the head of C, and an opening from A to the barrel B. A part of G is made to project to form a guide for C, and a rest for the lower side of the end of B when in place. The rod (l is made with a groove its whole length on the side next to B, and a portion of G between them is punched or pressed down to form a spline fitting into said groove and preventing the rod G from turning. The spring-head of O is shown plainly in Fig. 2, the cap E being held to G by the screw H, which has a spring, I, between its head and the cap E, whose action holds E strongly to C, but allows a little motion when sufficient force is used, so that when the barrel B which is pivoted to the other end of C is bent down i in the direction indicated by the curved arrow,

the rod C yields enough to allow the end ot B to slip out of its seat D, and the barrel can take the position shown by the broken lines, and making a convenient means of compressing the powerful spring by forcing down thc rod C, which forces the piston into position to be held by the trigger in the usual way.

The rod C is then drawn out and the projectile being placed in the end of B it is returned to place, the spring of C allowing it to enter, and holding it securely to its seat D. The side of the head E next the piston we fill with metal suitable to take the blow or concussion Without damage. The spring action of O- may be obtained in other ways by the use of well-known devices as a substitute for the spring-head E, as the opening in the outer end of G might be oval, and a spring applied, giving the desired action t0 C with a Solid head at E, or the spring might be applied to theV joint at the other end of C and get the necessary motion. The rod C being held from turning by its groove and spline, as shown in Fig. 3, where K is the spline, the barrel B is always ready to be quickly returned to its place, and make an air-tight joint in its seat.

We do not claim the precise form and arrangement of all the parts, but what we claim as new, and desire to secure by Letters Patent, is-

1. The combination, in aspring-piston and air pistol or gun, having the barrel B, and

chamber A, of the cap G, having a seat, D,

fitting the end ot' the barrel, and forming a guide for the rod (l, the rod C pivoted to the barrel and provided with a spring-head, E, for forcing the barrel B against the seat D, all constructed and arranged to operate substantially as and for the purposes set forth.

2. The combination, in a spring piston and air pistol or gun, ot' the springcompressing slotted rod (l, with the guidingcap G, having a spline or projection fitting the slot in the rod G, substantially as and for the purposes described.

Witness our hands this 13th day of March, A. D. 1876.

IvER JoENsoN. MARTIN BYE.

Witnesses:

J AMES GREENE, SANTIAGO VERDI.

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