US903919A - Firearm. - Google Patents

Description

R. T. TQRKELSON. IFEM-musa.`

APPLICATION FILED JUNE 1, 1907.

903,91 9. Patented Nov. 1.7, 190s.

M 'zlnessea TINTTEE STATES PATENT OEETEE.

REINHARD T. TORKELSON, OF FITGHBURG,r MASSACHUSETTS, ASSIGNOR TO MARY ELIZA- BETH JOHNSON, TRUSTEE7 OF FITCHBURG, MASSACHUSETTS.

FIRE ARM.

Specification of Letters Patent.

Patented Nov. 1'7, 1908.

To all whom it may concern:

Be it known that I, REINHARD T. TORKEL- son, a citizen of the United States, residing at Fitchburg, in the county of Torcester and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Firearms, of which the following is a specication accompanied by drawings, forming a part of the same, in whichn Figure l is a side view of a revolver partly in section embodying my invention. Fig. 2 is a portion of the frame shown in section on the line of the firing pin. Fig. 3 is the same with the firing pin in the discharged position. Fig. 4 is an end view of the nut to retain the firing pin in position, and Fig. 5 is a perspective view of the washer of hardened metal inserted in the nut to receive the blow of the firing pin.

Similar reference letters and figures refer to similar parts in the different views.

My invention relates to an improved construction of a fire arm by which the action of the firing pin is made more certain, provision being made to resist the hammering action of the firing pin when the fire arm is discharged, and it consists in the construction and arrangement of parts as hereinafter described and pointed out in the annexed claims.

I have shown my invention applied to a revolver, but it is applicable to any fire arm in which a firing pin is used.

Referring to the accompanying drawings l denotes the frame of the fire arm provided with a recess 2 for the reception of the firing pin 3. The recess 2 opens toward the cylinder 4 and is provided -with an opening 5 in its rear wall through which the firing pin 3 extends into the path of the hammer. A cylindrical nut 6 provided with screw threads 7 closes the forward end of the recess 2 and is provided with a concentric opening 8 in alinement with the opening 5 to receive the reduced end of the firing pin. The above construction is similar to that of fire arms in common use and forms no part of my invention. The usual spiral spring 9 is provided with one end pressing against a shoulder 10 on the firing pin, and with the other end restrained from longitudinal movement by the nut 6, the tension of the spring serving to return the firing pin to its original position, after the fire arm has been discharged. The above described construction, however, is

common in re arms and forms no part of my present invention.

When the trigger is pulled and the hammer descends to actuate the firing pin, the firing pin is moved with considerable force, under the influence of the hammer spring, through the central opening 8 in the nut 6 into contact with a cartridge held in the cylinder. The blow of the firing pin must be sharp and certain, hence the spring 9 must offer very little resistance to the movement of the firing pin. The principal force of the blow is received by the inner surface of the nut 6 around the opening 8 by its contact with a shoulder ll on the firing pin. Repeated blows of the shoulder 11 upon the nut 6 tend to upset the metal and obstruct the opening 8, thereby retarding the return of the ring pin by the spiral spring 9 when the hammer is drawn back. This interferes with the revolution of the cylinder and prevents further discharge of the fire arm. To avoid this difficulty I construct a recess l2 in the inner surface of the nut 6 surrounding the opening 8 and insert therein a washer 13 made out of hardened metal which will not be upset by the blows of the shoulder ll on the firing pin. The nut 6 cannot be given sufficient hardness to accomplish this since great dificulty would be met with in cutting the screw threads 7, and both the screw threads 7 and the nut itself would be more liable to check or warp in hardening. By my improvement the nut 6 is left of the necessary softness and the washer 13,which may be made as hard as necessary, is inserted in the nut at the point-of contact. The washer 13 ts the recess l2 and its accidental removal is prevented by the end of the spring 9 which is arranged to bear against the washer.

I claim, y

l. The combination with the frame of a fire arm provided with a screw -threaded recess, a screw threaded bushing arranged to be inserted in said recess provided with a hole for the tiring pin, a firing pin inserted in said hole provided with a shoulder, and a washer of hardened metal surrounding said hole and forming a face for said bushing to receive the Contact of said shoulder.

2. The combination with the frame of a fire arm having a screw threaded recess, a nut provided with a hole to receive the firing pin and arranged to be nsertedon said slide in said hole and provided With L 10 screw threaded recess, of a rng pin proshoulder arranged to Contact with said bushvded with a shoulder arranged to Contact ing around said hole7 and a Washer of hard- Wth said nut, and a member of hardened ened metal arranged to surround said hole. metal forming a face to said nut at said Dated this twenty third day of May 1907.

point of Contact. REINHARD T. TORKELSON.

3. The combination in a fire arm With a- Witnesses: screw threaded bushing provided with a hole L. H. COBB,

for a rng pin7 of a firing pin arrangedto E. W. CARRUTH.

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