US192749A - Improvement in magazine fire-arms - Google Patents

Description

UNITED STATES PATENT F- EVANS., 0F MECHANICS FALLS, MAINE iMPeovEMENT IN MAGAZINLFIREARM@ Speeieatien fermieg Part of Lettere Patet Ne- 192.249, dated J ely 3, ,1877; annlieatioe iled April 17, 1.877.

To all whom it 'may concern:

Be it known that I, GEORGE F. EVANS., of Mechanics Falls, Androscoggin county, State of Maille, have inventedlcertain Improvements in Magazine Fire-Arms, of which the following is a specification, reference being had to the accompanying drawing, forming part of the same.

Figure 1 is a vertical section `of ,the stock, lock, and breech end of the barrel of the tirearm containing my improvement. Fig. 2 is a similar view, showing the breech-block and connected parts in a different position. Fig. 3 is a central longitudinal section of the rear end of the grooved or uted cylinder that is tted to revolve within the cartridge chamber or magazine in the stock, by means 0i' which,

in conjunction with a spiral coil surrounding the cylinder, the cartridges are moved forward from the butt of the stock to the breech of the barrel. Fig.4 is a forward-end view of the said grooved cylinder, and a 'detached upper portion of the breech-block. Fig. 5 is v a cross-section of said cylinder on line .fr x,

Fig. 3. Fig. 6 is a face view of the butt-end of the stock.

This invention relates to a magazine rearm, for certain parts ofwhich Letters Patent have heretofore been granted to Warrenl A. Evans-namely, Patent No. 119,020, dated September 19, 1871, and No. 84,685, dated December 8, 1868.

In the tire-arm covered by the patents re ferred to, the cartridges are held in a magazine or chamber in the stock. They are introduced into said chamber through an opening in the butt of the stock, and received in grooves formed in a cylinder fitted to revolve within said chamber, and are carried forward to the barrel by a fixed spiral coil, within which the said cylinder revolves. This cylinder and spiral are the subjects of the beforenamed Patent No. 84,685. Certain peculi. arities of the lock form the subject-matter of the said Patent No. 119,020. The devices and combinations herein described and claimed are improvements upon those described in the said patents.

These improvements relate specially, first, to devices for locking the revolving iiuted cylinder in position when the breech of the gun is `elsed; Second, te devices whereby the-.deref `Ward and .forward movement 0f the bre-.eeh- :bleek (with its @cubaine-d hammer) evening the breeehis stepped jest Where the" trigger 'felle `.inte the wicking-.notch ofthe hammer- A is the uted cylinder, fitted to revolve within the chamber or magazine B in the gunstock. O is the swinging breech-block, and D the hammer, which works in a recess in the breech-block, and. swings upon a pin, a, therein. Eis the trigger, pivted at b to the stock, and C is the cocking-notch in the hammer,

-and c is the nose of the trigger, which engages the said notch. This nose of the trigger passes into the rear end of the recess in the breech-block, in the rear wall of which there is a notch, e, as shown in dotted lilies in Fig. 1. Upon the rear face of thev nose of the trigger is a stud or projection, f, which, when the trigger is in its normal position, will just clear the rear wall of the recess in the breech-block, when the latter is swung up in the act of closing the breech. Then, the breech being closed, when the trigger is pulled, the said stud f passes back into the notch e, and thus effectually locks the breech-block in position at the instant of firing. If an attempt is made to pull the trigger before the breech-block is carried up, so as to close the gun, the stud f will strike against the end of the recess above the notch e, and thereby be prevented from leaving the cooking-notch in the hammer.

The above described construction of the hammer, breech-block, and trigger, whereby the firing of the arm is prevented before the breech is securely closed, is recommended, as it prevents premature discharge of the arm.

' d d d d'H'are 'notches made in the core of the luted cylinder A, just at its forward end, as shown in Fig. 4, and his aprojection on the upper surface of the forward end of the vbreech-block, which, when the said block is in position to close the gun, as shown in Fig. 1, engages with the one of said notches d which at the moment is on the under side of the cylinder A, and thereby the said cylinder is locked in position whenever the gun is closed. At the rear end of this cylinder there is also a locking or detaining device, consisting of a sliding pin, g, Fig. 3, inserted in a recess in the cylinder A, and pressed outward by a spiral spring, i, as seen plainly in Fig. 3. This pin is prevented from turning in its recess by a pin or feather Working in a slot or slots, or by any other suitable device. The rear end k of the pin is square and tapered pyramidally bluntly to a point, the tapering portion projecting beyond the end of the cylinder into a correspondingly-shaped cavity, l, made in the heel-plate G, Fig. 6. When force is applied to the fluted cylinder to revolve it this pin, as is evident, acts to resist such motion; but if the force is sufficient the pressure ofthe faces of the tapering end of the pin g against the' inclined surfaces of the cavity l will force the pin back out of the cavity against the pressure of the spiral spring z', and thus permit the cylinder to revolve a quarter-turn, when the pin will again be thrown cut into the cavity l, and detain the cylinder until force to revolve it is again employed.

What I claim, and desire to Secure by Letters Patent, is-

l. The combination, in a magazine-gun, of

the cylinder A, provided With the notches d d d d', and the breech-block C, provided with the projection h, constructed to operate as and for the purpose described.

2. The cylinder A, the pin g, provided'with the square tapering end 7c, and the square tapering recess l in the heel-plate G, all constructed and combined to operate as and for the purposes described.

Witness my hand this 9th day of April, 1877.

GEORGE FRANKLIN EVANS.

Witnesses:

GEO. L. REED, C. M. CRAM.

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