US767557A - Breech-loading breakdown gun. - Google Patents

Description

PATENTED AUG. 16, 1904.

H. H. POX.

BREEGH LOADING BREAKDOWN GUN.

APPLIUATION FILED MAY 1, 1903 no MODEL.

NiTnD STATES Patented August 16, 1904.

PATENT OF ICE.

HARRY H. FOX, OF BALTIMORE, MARYLAND, ASSIGNOR, BY MESNE ASSIGNMENTS, TO PHILADELPHIA ARMS COMPANY, OF PHILA- DELPHIA, PENNSYLVANIA, A CORPORATION OF NEWV JERSEY.

BREECH-LOADING BREAKDOWN GUN.

SPECIFICATION forming part of Letters Patent No. 767,557, dated August 16, 1904.

Application filed May 1, 1903. Serial No. 155,136. (No model.)

fication.

This invention relates to breech loading breakdown firearms of the so-called hammerless kind or that in which the hammer is concealed, and has for its object to provide an improved mechanism for cocking the hammer operated by the breakingdown of the barrel.

In the present instance the invention is shown as applied to a double-barrel gun; but it may also be used with a single barrel.

Referring to the accompanying drawings, in which similar figures of reference indicate like parts, Figure 1 is a side view, in longitudinal section, of a portion of the barrels and breech of a gun with the breech closed and hammer down and showing the invention. Fig. 2 is a similar View with the barrels broken down and the hammers cocked. Fig. 3 is a similar View with the barrels closed and the hammers cooked for firing. Fig. 4. is a perspective View of a hammer detached, showing its slotted construction at the pivotal point.

1 indicates the breech-piece or frame of the gun, to which are pivoted, by means of the hinge-pin 2, barrels 4, on which is mounted the fore-end 3.

In describing this invention it will be understood that the operating mechanism is duplicated to adapt it to a double-barreled gun.

The breech-piece or frame 1 iscut away to form the chamber 5, in which are located the hammers 6, pivoted on the pin 7 and having the striking-point 8, the hammers being operated in the usual way and the striking-point 8 falling into and projecting through an aperture-hole 9 in the wall of the chamber 5 to strike against the primer of the cartridge. Below each hammer 6 is located a hinged sear 10, having its forward end normally beneath and resting against the heel of the hammer 6, as shown in Fig. 1, and when the hammer is cooked dropping into and engaging the notch 11 in the rear of the heel to hold the hammer in cocked position, as shown in Figs. 2 and 3.

In order to cook the hammers by the breaking down of the barrels, the following mechanism is employed: Mounted upon the hingepin 2 is a cam-roller l2, suitably connected with the fore-end 3 and, as here shown, by means of a V-shaped notch 13 in the cam-roller, with which engages a V- shaped projection 14 on the fore-end 3, whereby when the barrels are broken down the roller 12 will be turned on the pin 2. Opening into the chamber 5 and extending forward to within a short distance of the roller 12 is a tubular passage-way 15, terminating at its forward end in a shoulder 16, and extending from the forward end of the passage-way 15 is a similar smaller tubular passage-way 17, opening into the socket, in which is seated the roller 12. Located in the rear end of the passage-way 15 is a tubular nut or sleeve 18, secured in place by screwthreads 19 or other suitable means, and extending through the sleeve 18 and the passageways 15 and 17 is a cooking slide-pin 20, having its forward .end normally in engagement with a recessed shouldered portion 21 of the roller 12. In the forward end of the passageway 15 is located a nut 22, mounted on the cocking-pin 20 and screw-threaded thereon, so as to be adjustable to regulate the tension of a coiled spring 23, mounted on the pin 20 and located between the sleeve 18 and nut 22. The nut 22 serves to compress the spring 23 when the cocking-pin 20 is pushed back by the rotation of the roller 12 when the barrels are broken down.

Referring to Fig. 4c, the hammer 6 is shown as formed with a vertical slot 2 across which extends the pivot-pin 7 and also a pin 25, eecentric to the pin 7 The rear end of the cooking slide-pin 20 is formed with a hook 26, which projects into the slot 24: of the hammer 6 and loosely straddles or encircles the pin 25, permitting of a little play or lost motion between the hammer and the cocking-pin.

The operation of the device is as follows: When the barrels are broken down, the roller 12 is thereby rotated and pushes back the cocking-pin 20, the nut 22 compressing the spring23. In the rearward movement of the pin 20 the latter through its hook 26 pushes back the hammer 6 until the sear 10 engages the notch 11 in the hammer and holds the latter in cocked position. The barrels being closed, the gun is ready for firing. When the gun is discharged and the hammer returns to its normal position, the nut 22 serves to limit the forward movement of the pin 20 by coming in contact with the shoulder 16 of passageway 15, thereby taking the tension of the spring 23 off of the hammer as soon as the gun is fired and'allowing the striking end of the hammer to drop back out of the indentation in the primer,owing to the loose connection of the hook 26 with the pin 25. The hammer-point is thus not only away from the primer, but also by its position permits the rear end of the barrel to clear it when the barrel is broken down.

The invention is not limited to the exact construction or arrangement of the roller, cocking-pin, and connections with the hammer as herein set forth, as the parts could be so arranged that the roller would pull the cocking-pin instead of pushing it and the hammer be pulled back instead of pushed back.

The invention covers the construction whether used with one or two barrels, in the latter case the parts being merely duplicated.

Having thus described my invention, what I desire to secure and claim by Letters Patent 1. In a breech-loadingbreakdown gun,abarforth.

2. In a breech-loading breakdown gun, abarrel, and fore-end hinged to the breech-piece, in combination with a roller mounted to rotate on the hinge-pin and rigidly connected to and rotated by the fore-end, and having a recessed shoulder, a sliding cocking-pin having its forward end normally abutting against said shoulder and operated by said roller, and its rear end, formed with a hook, a retractingspring on said pin, and a nut limiting the outward movement of the pin; and a hammer having a pin loosely engaged by the hook of the cocking-pin, said cocking-pin having a limited movement independent of the ham mer, as and for the purposeset forth.

In testimonywhereof I have signed my name to this specification in the presence oftwo subscribing witnesses.

HARRY H. FOX. Witnesses:

Hoornn T. KRAFT, J. A. SINCLAIR.

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