To all whom, it may concern: Be it known that I, JOHN M. Browning, of Ogden City, Utah Territory, have invented an Improvement in Breech-Loading Fire-Arms, of which the following is a specification. My invention relates to breech loading firearms, and consist in certain details of construction, hereinafter fully described and particularly indicated in the claims, whereby the operating parts are greatly simplified and rendered more durable and certain in their opening. In the drawings, Figure 1 represents a perspective view of the breech and a part of the stock of my improved gun. .Fig. 2’represents a longitudinal vertical section of Fig. 1, some of the ‘parts being shown in side elevation. Fig. 3 is a side elevation, the case being partly broken away to show the interior mechanism. Fig. 4 is a top view, some of the parts being broken away to show the position of the cartridge in place and the retractor.
My invention relates particularly to that glass of breech loading firearms in which the breech is closed by a vertically sliding block operated by the guard-lever, and carrying the hammer with it in its motion up and down: The breech-block a slides vertically within the breech: piece to which it fits closely, and against which it bears both in front and rear, so that when it is raised it effectually and securely closes the breech of the gun. This breech-piece is moved by the guard-lever b, to which it is connected by the link c, within the slot in the interior of the block. The guard-lever b is pivoted to the breech-frame at d. Tightly in front of the breech block. The guard is also formed with lugs e-e, adapted to lit into the slotted breech-block and to receive between them the link c, to which they are connected by a pin at a point within the slot when the guard is brought into a position for firing.
The guard-lever is also’ so constructed that when it is brought into the position last specified it effectually closes the opening through which the block and the hammer move when the lever is depressed, as in opening the breech. The hammer f is pivoted to the block at g, within the slot of said block. The tail of the hammer extends through the slot and rests, when the block is raised, under the end of the spring h, which is secured to the barrel, as shown in Figs. 2 and 3. The breech-piece is slotted to the rear sufficiently to give space for the hammer when at full cock. The hammer is constructed with an offset at i, against which the dog k bears, when the breech-block is raised, to close the breech. This dog is pivoted at 1, and is provided with an arm, and spring, the latter bearing against the Shell in the breech-frame, so as to keep the arm on pressed down against the trigger o.
The pressure of the spring n keeps the end of the dog k against the rear edge of the hammer, whether the breech-block be raised, as shown in Fig. 2, or lowered, as shown in Fig. 3. When the guard b is depressed for the purpose of opening the breech of the gun, by means of the links tit draws down the breech-block, carrying with it the hammer f, the hammer being thrown forward in its passage, and the tail of it dropping from contact with the spring C. When the lever is elevated its return movement lifts the breech-block, and with it the hammer; but as the dog k comes in contact with the offset i the rear part of the hammer is arrested in its movement and held in place While the forward part continues to rise, being carried upward by the continued movement of the lever b, so that the hammer is thrown back by the completion of the movement and held at full cock, testing over the point and on the breech-piece, while in the latter part of the movement the tail of the hammer has come in contact with the spring 11, and lifted it sufficiently to bring the strain of the spring upon the tail of the hammer, so as to give a suitable blow upon the firing pin.
The breech-block is supported when the guard-lever is closed by means of the links and lugs e e, the pivot pin which connects the said link and lugs being carried into line with the other link pin and pivot of the guard-lever, or slightly past the dead point, so as to :securely lock the block in closed position. The firing pin is of the ordinary construction, and is represented at p. retractor is shown at q.