US530968A - Half to john johnston - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

D. s. SEYMOUR. SHIFTABLE NOSE 0N HAMMER AND AUTOMATIC EXTRAGTOR FOB. FIREARMS.

Patented Dec. 18

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, 2 SheetsSheet 2. D. S. SEYMOUR. SHIFTABLE NOSE 0N HAMMER AND AUTOMATIC EXTRAOTOR FOR FIREARMS.

No. 530,968. Patented Dec. 18, 1894.

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DUDLEY S. SEYMOUR, OF HARTFORD, CONNECTICUT, ASSIGNOR OF ONE HALF TO JOHN JOHNSTON,

OF SAME PLACE.

SHIFTABLE NOSE ON HAMMER AND AUTOMATIC EXTRACTOR FOR FIREARMS.

SPECIFICATION forming part of Letters Patent No. 530,968, dated December 18, 1894. Application filed May 2, 1894- Serial No. 509,783- (No model.)

To aZZ whom, it may concern..-

Be it known that I, DUDLEY S. SEYMOUR, of Hartford, Connecticut, have invented a new and useful Improvement in Firearms,-of which the following description and claim constitute the specification, and which is illustrated by the accompanying two sheets of drawings.

This invention is a double barrel breech loading firearm, which has a magazine shot gun barrel, and a hand loaded breech loading rifle barrel on one stock, independently discharged by one lock; and the object of the invention is to combine a rifle and a shot gun, in a compact organization, without unnecessary duplication of parts.

Figure 1, of the drawings, is a side view of a breech loading firearm, which has a ride barrel, a shot barrel, and a magazine barrel containing shot cartridges. Fig. 2, is a side view of the receiver, containing the breech block, and the breech block mechanism, and the hammer and dog; a portion of the side wall of the receiver being broken away, to show the hammer and dog, and to show a central vertical longitudinal section of the rearward part of the breech block, with an upper and a lower firing pin within. Fig. 3, is a plan view, on the sectional line act, of Fig. 2. Fig. 4, is a side view of a modified form of hammer and dog, which maybe used in place of the hammer and dog of Fig. 2. Fig. 5, is an end View of the receiver and breech block, with the hammer and dog of Fig. 4. Fig. 6, is a plan view of the rear part of the breech block, in connection with a View, partly in horizontal section, of the hammer and dog of Figs. 4 and 5, but in a different position from that of those parts in those figures. Fig. 7, is a vertical section of the firearm on the line b b, of Fig. 1. Fig. 8, is a vertical section of the firearm, on the line 0 o, of Fig. 1.

The firearm indicated in the drawings, is mainly like that which is more elaborately delineated in the drawings, and fully described in the specification of application, Serial No. 509,781, for Letters Patent of the United States, filed by me May 2, 1894., and therefore only the distinguishing characteristics of this firearm, as compared with that, need be particularly described in this specification.

These distinguishing characteristics consist in a hammer and dog, which may be fixed by the gunner to strike either of the two firing pins, and a cartridge shell extractor, adjacent to one of those firing pins, and adapted to be put into engagement with the rim of its cartridge, by the dog of the hammer, when it strikes that firing pin; and consists also in connecting the two barrels of a double barrel gun, by means of a yoke which is fastened to one of those barrels, but which holds the other barrel without being fastened thereto, so that either of the barrels, when it expands in length, when heated by use, will not be deflected by any restraint of the other and cooler barrel.

The hammer A, in the form shown in Figs. 2 and 3, is provided with a dog B, which turns on the bearing C, in the head of the hammer, which bearing is parallel to the bearing D, upon which the hammer turns. The dog B, turns through an arc of only about twentyfive degrees, from its upper position shown in Fig. 2, opposite to the upper firing pin, to its lower position opposite to the lower firing pin; and the stud E, worked by the spring F, occupies an interior recessin the dog; and the rounded head of that stud enters a shallow concave recess, in the hammer, at the upper limit of its motion, and enters a similar recess at the lower limit of its motion, so that the dog will rest in either position, to which it is turned by the hand of the gunner, while capable of being turned, with but little resistance, from either position to the other. The dog B, is also provided with the inclined plane G on its side, by means of which, whenever it strikes the upper firing pin, the dog forces the cartridge shell extractor H, against the resistance of the spring I, into engagement with the cartridge in the upper barrel.

The hammer J, in the form shown in Figs. 4, 5, and 6, is provided with the dogK, which turns on the eccentric bearing L, in the head of the hammer, and which bearing is at right angles to the bearing M, upon which the hammer turns. The dog K, turns through an arc of about ninety degrees, from its lower position shown in Figs. 4 and 5, to its upper position shown in Fig. 6; and the stud N,

teases worked by the spring O, occupies an interior recess in the dog; and the rounded head of that stud enters a shallow recess, in the face of the hammer at the upper limit of its mo tion, and a similar recess at the lower limit of its motion, so that the dog will remain in either of those positions to which it is carried by the hand of the gunner. The dog K, is also provided with the inclined plane R, by means of which it forces the cartridge shell extractor H, into engagement with the cartridge in the upper barrel, whenever the dog strikes the upper firing pin.

The yoke P, has three openings, the lower one of which is fastened around the forward end of the magazine barrel, and the middle one of which is fastened around the lower and larger or shotbarrel of the firearm; while the upper one of which embraces but loosely the upper and smaller or rifle barrel, of the firearm. The yoke Q, is like the yoke P, except in the absence of the lower part of the latter, and the larger part of it is fastened around the shot barrel, while the smaller part of it embraces but loosely the rifle barrel. This plan of connecting the shot barrel and the rifle barrel, obviates the serious fault which has resulted from connecting two such barrels together rigidly; and which fault resides in bending the rifle barrel, whenever it is expanded in length by heat caused by use, and which bending has resulted from the cotemporaneous non-expansion, of the cotemporaneously unused shot barrel, whenever the two barrels have been rigidly connected together, near their muzzles, or midway of their lengths.

r The mode of operation of this firearm, is distinguished from that of the said other application, in the following particulars: The hammer, instead of always striking the lower firing pin is provided with a dog B, or K, as the case may be, to strike either the lower or the upper firing pin, at the option of the unner; and when such dog strikes the upper firing pin, it also forces the upper cartridge shell extractor H, into engagement with the rim of the rifle cartridge, in the upper or rifle barrel, of the firearm. Each firing pin is encircled by a spiral spring, to force it backward in the breech block, and keep its point inside of the forward face of the breech block, at all times except when it is struck, by the hammer; but that plan of holding one firing pin back from the face of the breech block, is not new, and as applied to two firing pins, in the same breech block, it, is not invention.

More than two barrels may be independently discharged, by an equal number of firing pins respectively, by the action of one trigger and one hammer; by arranging the respective firing pins, in a vertical series, in the breech piece, when the hammer and dog of Figs. 2 and 3, are used; or by arranging those firing pins in the breech piece, around the line of the axial bearing of the dog K, and at equal distances therefrom, when the hammer and dog of Figs. 4, 5 and 6, are employed.

I claim as my invention- In a firearm, the combination of a hammer; a breech piece, containing several firing pins; a dog, between the hammer and the breech piece, which may be brought into alignment successively with the several firing pins and the hammer, so as to transmit the blow of the hammer to either firing pin; and a cartridge shell extractor, adjacent to one of the firing pins, and which is forced into engagement with the rim of its cartridge, by the dog, whenever the dog strikes that firing pin; all substantially as described.

DUDLEY S. SEYMOUR. I Witnesses:

ALBERT I-I. WALKER, WILLARD EDDY.

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