US624620A - Firearm - Google Patents

Description

No. 624,620. Patented May 9, I899.

' H. E. BROWN.

FIREARM.

(Application filed Jan. 81, 1898. Renewed Apr. 7, 1899.)

(No Model.)

A 7'TOHN E YS.

WITNESSES NITED TATES HARRY ELBERT BROWN, OF GRINNELL, IOWA.

FIREARM.

- SPECIFICATION forming part of Letters Patent No. 624,620, dated May 9, 1899. Application filed January 31, 1898. Renewed April 7, 1899. Serial No. '712,l (N0 m l-l To all whom it may concern.-

Be it known that I, HARRY ELBERT BROWN, of Grinnell, in the county of Poweshiek and State of Iowa, have invented a new and Improved Firing Mechanism for Small-Arms, of which the following is a full, clear, and exact description.

The object of my invention is to provide a firing'mechanism for small-arms which shall be simple, durable, and economic and will comprise but few parts, and particularly to provideameans wherebya recoil of the firingpin will be prevented after the hammer has driven the pin against the charge.

Another object of the invention is to construct the firing-pin in such manner that it will stand hard usage.

Another object of the invention is to provide a simple and convenient locking mechanism between the barrel and the stock and to provide for the limitation of the movement of the firing-pin in its bearings.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a Vertical section through the stock of a gun and a portion of the barrel, showing the major portion of the mechanism in side elevation, the parts being in the position they occupy immediately after firing and the section being taken substantially on the line 1 1 of Fig. 3. Fig. 2 is a section similar to Fig. 1, the parts being shown as in position for firing; and Fig. 3 is a vertical transverse section on the line 3 3 of Fig. 1.

The barrel A is provided with a chamber a at its breech end, in which chamber the cap portion of the charge introduced into the barrel is located. Near the breech endof the barrel a lug is projected downward, which, through the medium of a pin 11, is pivoted to the fore end 12 ofthe stock. A second lug 13 is projected downward from the barrel at the breech or below the chamber a, and this lug 13 is adapted as a locking-lug and is provided, preferably, with a segmental opening 15, as shown in Fig. 1, and, as shown in Fig.

' 3, one wall of the said opening, usually the upper wall is beveled. The locking-lug 13 is arranged to enter a recess 14 made in the stock, as shown in all the figures, and the stock is provided with a second opening or recess 16, which is carried through from one side, crossing the recess 14 and terminating near the opposite side of the stock, as shown in Fig. 3. A locking-bolt 17 is held to slide in the horizontal opening or recess 16, and this locking-bolt, as shown in Fig. 3, is provided with an angular recess 18, whereby a horizontal lip 18 is formed, which may enter the opening 15 in the locking-lug and hold the barrel securely in position on the stock. The lip 18 is inclined at its free end to meet the inclined wall 15 of the-opening 15 in the barrel-lug 13.

A spring 19, located at the closed end of the opening 16, is made to bear against the locking-bolt 17 and normally hold the said bolt in position for locking engagement with the locking-lug. When the gun is to be broken, the bolt 17 is forced inward, freeing the lockinglug 13 of the barrel'from the lip 18*, whereupon the forward end of the barrel will drop downward, turning on its pivot 11. When the barrel is closed, it will lock automatically to the stock, as the inclined surface of the lip l8 will meet the inclined surface 15 of the barrel-lug 13,enabling the lip 18 to readily slip into the opening 15 in the said barrellug 13. The movement of the bolt 17 is limited by producing a slot 20 in its bottom and passing a screw 20 through the under surface of the stock into said opening, as illustrated in the drawings.

At the upper side of the stock a casing B is formed, preferably of a cylindrical shape,

against the fore end of which casing the breech end of the barrel has bearing when the ter the cap-chamber a of the barrel, as illustrated in Fig. 1. A longitudinal slot 27 is made in the bottom of the casing B, and a hammer 28 of any approved constructio l is pivoted in the stock and arranged for engage ment with the rear end of the firing-pin, the hammer being adapted for engagement with a spur 29, projected from a trigger 29, protected by the usual trigger-guard 30. A collar is secured upon the firing-pin within the casing, and a spring 26 is coiled around the firing-pin,having bearing against the front in Figs. 1 and2, the spring being adapted to force the pin back when the hammer is cooked, carrying the pin out of the cap-chamber, so that the gun may be readily broken for loading purposes.

The mainspring C is provided with two members 31 and 3l, one member being in engagement with an extension from the rear of the hammer, tending to force the hammer against the firing-pin, while the other member of the mainspring has bearing against the rear wall of the stock-chamber D. Asecond spring 32 has bearing against the forward portion of the trigger and a forward wall 33 at the lower portion of the stock chamber, forming the forward end of the slot in which the trigger has movement. A stop-lever 34 is employed in connection with the firing-pin and the hammer. This stop-lever is of angular construction, one member an whereof is arranged to pass through the slot 27 in the casing B and engage the rear face of the collar 25 of the firing-pin, the other member 349 of the lever having bearing against the forward lower portion of the hammer 28, as illustrated in Figs.

1 and 2, and the member engaging with the hammer is held in such engagement by means of a spring 35, suitably secured within the stock, as shown in the same figures. A second collar 36 is secured upon the firing-pin at the rear of the collar 25, and the second collar 36 is so located that when the firing-pin has been forced by the spring 26 from the capchamber upon cocking the hammer 28 the sition shown in Fig. 1.

said collar 36 will engage with the innerface of the rear washer 22 and limit the rearward movement of the firing-pin, as shown in Fig. 2.

In operation, supposing the gun to have been fired, the hammer will be against the firing-pin, as shown in Fig. 1, and the Vertical member of the stop-lever will be against thecollar 25 of the firing-pin, preventing the recoil of the latter, the parts being in the po- In order to place the gun in position for loading, the hammer is carried back to theposition shown in Fig. 2, and as the hammer is carried back the member 34 of the stop-lever is raised and the member 31L, which was in engagement with the collar 25 on the firing-pin, is dropped downward, as shown in Fig. 2, whereupon the spring 26 will expand and carry the firing-pin out from the loading-chamber 0 until the stopcollar 36 shall have engaged with the washer 22 of the casing B. The locking-bolt 17 is then pushed inward, freeing the locking-lug 13 of the barrel, and the barrel will drop at itsforward end, elevating the breech to receive a charge. The charge having been placed in the barrel, the said barrel is restored to its normal position, the locking-lug 13 of the barrel being carried automatically to looking engagement with the bolt 17 as the barrel is restored to its normal position. \Vhen the trigger is drawn to fire the charge, the hammer will fall and strike the firing-pin, driving it against the cap in the cap-chamber a, and the hammer in falling will permit the vertical member 34 of the stop-lever impelled by the spring 35 to engage with the rear face of the collar 25, thus effectually preventinga recoil of the firing-pin while the charge is being exploded.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1'. In a firing mechanism for small-arms, a casing located at the breech portion of the gun, a spring-pressed firing-pin mounted to slide in said casing, a hammer, and a stop-lever operated by the movement of the hammer, and arranged to engage a projection on the firing-pin to prevent a recoil of the same during a discharge, as set forth.

2. In a firing mechanism for small-arms, a firing-pin, a hammer, and a spring-controlled stop-lever operated by the hammer and hav= ing two members one of which is in engagement with the hammer, the other member be* ing arranged for engagement with the firingpin during a discharge, as and for the purpose set forth 3. In a firing mechanism for small-arms,the

combination, with a hammer and atrigger, of

a firing-pin, a support for the firing-pin, the firing-pin being provided with a projection, a'spring having bearing against a fixed support and against the projection of the firingpin, and a stop-lever operated by the movement of the hammer and arranged to prevent a recoil of the firing-pin during a discharge, as specified.

4. In a firing mechanism for small-arms, the combination, with a hammer, a trigger connected with the hammer, and a casing located at the breech portion of the stock of a gun, of a firing-pin mounted to slide in the said casing, provided with a collar, and an encircling spring engaging against the forward end of the casing and against said collar, the firingpin being also provided with a second stopcollar limiting the rearward movement of the firing-pin, an angular, spring-controlled stoplever, one member whereof is in engagement with the hammer, the other member extending within the casing and being arranged for engagement with the collar of the firing-pin against which the spring of the pin has bearing, and a trigger for tripping the said hammer, as and for the purpose specified.

5. In a gun, the combination, with a stock and the barrel pivoted on the stock, the barrel being provided with an apertured lug arranged to enter a recess in the said stock, a

wall of the aperture of the said lug being beveled, of a locking-bolt held to slide in the stock, crossing the recess into which the locking lug enters, the said bolt being spring-controlled and provided with an angular recess whereby a lip is formed, which lip is provided with a beveled surface arranged for engagement with the beveled wall of the aperture in the locking-lug, the lip being adapted to enter the said aperture in the locking-lug, and means for limiting the movement of the lockbolt as and for the purpose specified.

6. -In a gun, the combination, with a stock and a barrel pivoted on the stock, the barrel being provided with an apertured lug arranged to enterthe recess-in the stock, of a locking-bolt held to slide in the stock, crossing the recess into Which the locking-lug enters, the said bolt being spring-controlled and provided with a recess, whereby a lip is

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