US624321A

US624321A - Lock for firearms

Info

Publication number: US624321A
Authority: US
Publication date: 1899-05-02
Anticipated expiration: 1916-05-02

Description

No. 624,32l. Patented May 2, I899. A. FYRBERG.

LUCK FOB FIREARMS.

(Application filed. Dec. 15, 1898.)

(No Model.)

my? GM UNITED STATES ANDREXV FYRBERG, OF VORCESTER, MASSACHUSETTS.

LOCK FOR FIREARMS.

SPECIFICATION forming part of Letters Patent No. 624,321, dated May 2, 1899. Application filed December 15, 1898. Serial No. 699,819. (No model.)

To (0Z1 whom it may concern: Be it known that I, ANDREW citizen of the United States, residing at \Vorcester, in the county of \Vorcester and State of Massachusetts, have invented a new and useful Improvement in Safety Lock Mechanism for Firearms, of which thefollowing, together with the accompanying, drawings, is a specification sufficiently full, clear, and exact to enable persons skilled in the art to which this invention appertains to make and use the same.

My presentinvention relates to the peculiar construction and arrangement of the cartridge-discharging devices; and it consists of a recessed hammer, a Vertically-swinging firing-pin, and an actuating connection therefor, in combination with the trigger, as hereinafter explained, the objects being to provide a safety lock mechanism more especially adapted for thumb-cocking-hammerguns,and combining a rebounding firing-pin and a recessed hammer-face in a manner to give release of the firing-pin and insure safety when the hammer is let down; also, rendering the parts non-operative except by first raising the hammer.

In the drawings, Figure l is a section of a gun,illustrating my invention, the parts being shown as at non-active position. Fig. 2 is a section of the same, showing the parts as at the instant of firing. Fig( 3 is a transverse vertical section showing the rear of the trigger, the firing-pin, and their connecting-link; and Fig. 4 showsa bottom and side view of the firing-pin separate from other parts.

In the drawings, A denotes the stock-frame, of suitable form; B, the barrel; 0, the barrelcatch, arranged and operated in well-known manner by the top lever O and spring 0 as heretofore employed in breakdown guns.

D indicates the hammer, which is pivoted to swing upon the pivot-pin (Z and to throw forward against the rear side of the recoilblock, which arrests its forward motion. It is operated by a thumb-pad or projection for cooking and a suitable mainspring E, arranged for throwing forward the hammer in well-known manner. The hammer, as a part FYRBERG, a

of my invention, is provided with a recess 3 and a solid portion 5 in its striking-face. The recess 3 is preferably of rectangular shape or firing-pin is disposed is formed with a small front aperture and rearwardly enlarged in vertical directions, but with parallel sides, as indicated in Fig. 3.

F'indicates the improved firing-pin, which is made with a flat body portion having a projecting point or nose 6 and a rearward-projecting part7. Said firing-pin is arranged within the openingfin the frame in such manner that it can have endwise movement,while its rear end can oscillate or have an upward and downward swinging action, sufficient to carry its rearward-projecting part 7 into and from alinement with either the recess 3 or solid part 5 of the hammer-face. The point (S-of the firing-pin is loosely fitted to the tunnel-shaped aperture at the front part of the recoil-block, through which it is advanced for discharge of the cartridge, and serves also as a fulcru m-point from which the oscillatoryaction takes place, the fiat bodyof the pin being non-rotatively supported between the parallel sides of the opening. The body of the firingpin has an opening formed therein, preferably belowthe point 6, and the spring m is arranged therein for pressing back said pin and effecting its retractive action.

G denotes the trigger, which is pivoted in the usual manner at h and normally pressed forward by a suitable trigger-spring H for raising its fore end to engage the notch n on the hammer-tumbler when the hammer is cocked.

I indicatesalink orbar connecting the trigger-head with the firing-pin F. Said connecting-link I has one end pivoted to the rear part of the firing-pin at 8, while its other end is pivoted to the head of the trigger, as at 9. A guard or pinris arrangedin the frame in rear of the link I for limiting the rearward movement of the link and firing-pin.

The operation is as follows: WVhen the trigger is at normal forward position, the c0nnecting-link I keeps the rearend of the firingpin at such position that its projecting part 7 coincides with and enters the recess 3 in the hamlnerD. (See Fig. 7.) The firing-pin cannot then be driven forward by the hammer by any accidental stroke thereon. Also when the hammer is down the parts so interlock with the recess that the trigger cannot be drawn back unless the hammer D is first raised. When the hammer is at full-cocked position and the trigger-point engaged with the notch 01, then the act of pulling back the trigger for discharging the piece causes the firing-pin to be shifted or swung downward at its rear end by the link I, and the projecting part 7 is brought into alinement with the solid or contact face 5 of the hammer, which latter as it is thrown forward strikes said projecting end and drives forward the firingpin, (see Fig. 2,) so that its point 6 explodes the cartridge. When the trigger G is released, the trigger-spring II causes the trigger G, connection I, and firing-pin F to at once assume their original positions, as in Fig. 1, there being sufficient play-room for the firing-pin in front of the hammer-face to permit this movement Without any liability of the parts becoming wedged or held fast by the forward pressure of the hammer, thus providing for the ready rebound or automatic retraction of the firing-pin to its idle position, while the hammer stands with its face in stationary contact with the frame.

I am aware that the idea of controlling a safety device by the trigger is not new, such feature having been employed in various differently-constructed mechanisms. Hence it will be understood that I do not broadly claim such means; but my invention comprises the construction and organization of mechanism specifically as illustrated and defined.

I claim as my invention and desire to secure by Letters Patent 1. In a firearm, the combination of the pivoted hammer, its front adapted for contact with the frame and havinga recess in its striking-face, an endwise-movable firing-pin arranged to swing up and down at its rear part and having a rear end projection adapted to enter the recess in said hammer,the dischargecontrolling trigger having the pivoted head, and a link connecting at its ends with said firing-pin and with the head of the trigger, for the purposes set forth.

2. In combination, thehammerhaving arecess and a solid portion on its striking-face, a rebounding firing-pin, its rear end adapted to swing into alternate alinement with either said recess or said solid portion of the hammer-face, the trigger pivoted in the frame and its fore end adapted for engaging said hammer, the trigger-spring,the flexibly-connected link, its ends respectively pivoted to said firing-pin and to said trigger and the transverse guard-bar in rear of said link, substantially as set forth.

8. In a firearm, the frame provided with an opening formed with a tunnel-shaped front aperture and rearwardly enlarged in upward and downward direction with internal parallel sides; in combination with the firing-pin, consisting of a laterally fiat body having a rounded forwardly-projecting point supported in said aperture, the fiat body fitted for upward and downward movement between the parallel sides, the spring for retracting said firingpin disposed within an opening in the body beneath the point, a guard limiting the rearward movement of the parts, the operatingtrigger, and a shifting link connecting with said trigger and pivoted on a stud fixed in the body near the rear end of said firing-pin, as shown and described.

4. In afirearm, the combination with a trigger and a pivoted thumb-cocking hammer having a recess in its striking-face, of a firingpin having the rear end projection adapted for entering the recess in said hammer, and a connecting-link directly joining said firingpin to the trigger-head, said firing-pin and hammer-recess intermatchedly coacting in the manner shown and described, when the hammer is down or at forward position and the contact-face seated against the frame, substantially as set forth.

WVitness my hand this 13th day of December, 1898.

ANDREW FYRBERG/ Witnesses:

CHAS. H. BURLEIGH, NILs J. A. FYRBERG.