US431410A

US431410A - Joseph james speed

Info

Publication number: US431410A
Authority: US
Publication date: 1890-07-01
Anticipated expiration: 1907-07-01

Description

(No Model.)

J. J. SPEED.

SPRING FOR CARTRIDGE MAGAZINES.

ZZZ/63507:

UNITED STATES PATENT OFFICE.

JOSEPH JAHES SPEED, OF WALTHAM CROSS, ENGLAND. I

SPRING FOR CARTRIDGE-MAGAZINES.

SPECIFTCATION forming part of Letters Patent No. 431,410, dated July 1,1890.

Application filed December 13, 1888. Serial No. 293,449. (No model.) Patented in England December 30, 1887, ITO-17,944; in Belgium August 16, 1888', No. 82,706, and in France September 24, 1888,1510. 191,999.

To all whom it may concern:

Be it known that I, JOSEPH JAMES SPEED, mechanical engineer, a subject of the Queen of Great Britain, and a resident of WValtham Cross, England, have invented certain new and useful Improvements relating to Spiings for Elevating Cartridges in the Magazines of Repeating Fire-Arms, (for which I have obtained a patent in the following countries: Great Britain, No. 17,9l4, dated December 30, 1887; France, No. 191,999, dated September 24:, 1888; Belgium, No. 82,706, dated August 16,1888,) of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to springs for elevating cartridges in the magazines of repeating fire-arms, and has for its object to provide certain novel features of construction, substantially as hereinafter described.

In the accompanying drawings I haveshown how my said invention can be conveniently and advantageously carried into practice.

Figure 1 isa side elevation showinga spring cartridge-elevator constructed according to my said invention. Fig. 2 is an under side view of the same. Fig. 3 is a vertical longitudinal section of a magazine, part of the casing being removed, showing the said spring compressed.

Like letters indicate corresponding parts throughout the drawings.

A is the spring, which is made of wire coiled in such a manner that the convolutions thereof are oblong. The said spring A is secured at its upper end to a plate or follower B. The spring is so formed that when compressed in the magazine 0, as shown in Fig. 3, the ends of each convolution will be slightly in front of (orbehind) the ends of the convolution above it. By this means I obviate any liability to interlocking of the convolutions. The said.

spring is, moreover, shorter than those heretofore used, and can therefore be made of wire of smaller diameter and permits the use of shorter controlling-guides than heretofore. I also provide an additional or supplementary spring D, which will come into action for the purpose of feeding the first two or three cartridges from a full magazine. This additional or supplementary spring D is designed to raise the forward ends of the topmost two or three cartridges when the magazine O is full into the proper position to insure the entrance of the said cartridges into the chamber of the gun when pushed forward by the breech-bolt.

I prefer that the additional or supplementary spring D should be a continuation of the wire forming the coiled or main spring A, the intermediate part E-o'f the said wire being utilized for connecting the two springs to the plate or follower B. This connection is advantageously eifected by forming hooks F on the said plate or follower B and causing the wire E to engage with the said hooks. If desired, however, the two springs are made separately and attached to the plate or follower B in any convenient manner.

That I claim is- In a cartridge-magazine, the combination, with a follower and a main spring, of an auxiliary spring adapted to act on the front end of the follower, said spring formed integral with the main spring, substantially as described.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JOSEPH JAMES SPEED.

Witnesses:

DAVID YOUNG, A. E. NIXON.