US2200868A

US2200868A - Firearm

Info

Publication number: US2200868A
Application number: US227781A
Authority: US
Inventors: Charles A Young
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-08-31
Filing date: 1938-08-31
Publication date: 1940-05-14
Anticipated expiration: 1957-05-14

Description

May 14, 1940.

c. A. YOUNG FIREARM Filed Aug. 31, 1938 a Z inventor Patented May 14, 1940 fi'iATES PATENT UFFEQE Application August 31,

6 Claims.

This invention relates to firearms of the small magazine type, it particularly relating to an improved lock for the sear which holds and releases the hammer. In guns of this type a forearm is slidably mounted upon the magazine which has an action bar and a stop is provided for this action bar which retains the forearm and action bar against rearward movement when the gun is ready for firing. It has been usual to provide some sort of a lock for the sear which controls the hammer which is manually operated and which must be operated to release the sear before the gun can be fired.

One of the objects of the present invention is to provide a lock for the sear which is controlled by the forearm, its action bar and the stop for the action bar.

A further and more specific object of the invention is to provide an arrangement whereby after the forearm and action bar have been moved to their extreme forward position a slight movement rearwardly of the forearm will cause the action bar to contact the stop and move it a limited distance rearwardly to cause the stop by a connection thereof with the sear lock to move the sear lock to unlock the sear.

A further object of the invention is to provide means whereby if the firing of the gun for any reason is to be delayed, merely releasing the forearm will cause the parts to be restored to extreme forward position to again lock the sear.

A further object of the invention is to provide means whereby in the event that the shooter has failed. to release pressure upon the trigger and the trigger is being held in its extreme rearward position, the cocking of the hammer will swing the trigger forwardly to permit the sear to be raised to engage the hammer and the locking pin for the sear to be moved to locking position.

In the accompanying drawing:

Fig. 1 is a view partly in side elevation and partly in longitudinal section of so much of a gun as is necessary to illustrate the invention, the parts being shown in firing position with the impact member or hammer cocked.

Fig. 2 is a top plan view of some of the parts shown in Fig. 1 after the gun has been fired.

Fig. 3 is an enlarged side elevation of the parts shown in Fig. 2 and also an enlargement of some of the parts shown in Fig. 1 with the exception that the action parts are shown after the gun has been fired instead of before firing as shown in Fig. 1.

Fig. 4 is an elevation of the forward end or the hammer sear and. the lock for same.

1938, Serial No. 227,781

Fig. 5 is a section on the line 5-5 of Fig. 4 showing the sear in locked position.

Fig. 6 is a view similar to Fig. 5 except that the sear is in unlocked position.

Referring to the drawing, i represents a portion of the barrel of the gun, 2 a portion of the stock and 3 the housing which encloses and supports the action. The usual breech block is indicated at 4 and firing pin at 5. A portion of the magazine is indicated at 6 and a portion of the forearm at I, the forearm being slidably mounted upon the magazine and having the usual action bar 8 which when the forearm is manipulated serves to retract the breech bolt to cock the impact member shown in the present case as a pivoted hammer 9, eject the exploded shell and place a new shell upon the shell carrier ill.

The stop for the action bar is indicated. at E i, this stop being in the nature of an elongated bar which is pivoted at l2. The main spring for the hammer is indicated at 83, this spring being a coil spring which encircles a rod 54 which is slidably mounted at its rear end in a bridge portion l5 of the action support It and has its forward end pivotally connected to the by a head I! which is pivoted to the hammer by the pin IB. This head i! has connected therewith a spring wire or rod IS, the rear end of which is formed with a bent portion l9 which extends into a groove 29 and a plate 2! which is fastened to the action bar stop I! as a result of which when the hammer is moved to cocking position the action bar stop will be tilted to a position to bring the forward end thereof in the path of the action bar but when the gun is fired the stop will be tilted to a position out of the path of the action bar.

The pivot pin 12 for the stop H extends into a. slotted opening 22 in a portion. of the frame Hi so that the stop will be permitted a limited rearward movement against the tension of a coil spring 23, one end of which is connected to the stop and the other end to a suitable portion of the frame. The stop 1 I has on its rear end a foot 24 which contacts with an abutment 25 to limit rearward movement.

The sear which engages the notch 9' in the hammer is indicated at 25 and in the present case is shown as an integral part of the trigger 2? which is pivoted at 28. A small coil spring 26' serves to move the sear to a position to engage the hammer when the hammer is cocked. The forward end of the sear has a small projection 26" which cooperates with a lock for the sear. In the present case this look is shown as a rotatable pin 29 which is rotatably mounted in a portion of the finger guard 30 and is held against endwise movement in any suitable way, in the present case, by the side of the housing 3. The pin has a notch 3| which is brought into or out of the path of the projection 26" by rotation of the pin. 'I'o rotate the pin, the pin has a projecting finger 32 which extends into a yoke 33 which projects from the stop II.

In operation when the gun is fired the spring l9 sliding in the groove 20 swings the stop I I out of the path of the action bar so that the forearm and its action bar may be moved rear- Wardly to perform their proper functions, one of which is to cook the hammer. The action bar by reason of its close proximity to the enlargement I l' on the forward end of the stop holds the stop against return movement. This results in the spring 19 being moved to the other end of the groove and bearing thereon so as to tilt the stop II as soon as the action bar has been moved out of the way with the enlargement H thereof to the position shown in Fig. 1. In the meantime the spring 23 has moved the stop H forwardly so as to rock the lock 29 to the position shown in Fig. 5 to thereby lock the sear. If it is desired to fire the gun it is necessary to move the forearm slightly to the rear which causes the action bar 8 by contacting the enlargement H of the stop II to move the stop rearwardly against the abutment 25 which rocks the locking pin 29 to the position shown in Fig. 6 to thereby unlock the sear. The shooter must hold the forearm and action bar in this position until the gun is fired. In the event that it is desired to delay the firing of the gun for any reason the shooter by merely releasing the forearm permits the arm, action bar and action bar stop to be moved forwardly under the influence of the spring 23 to again rock the locking pin to the position shown in Fig. 5 and lock the sear.

In the event that after the firing of the gun, the shooter should inadvertently or otherwise maintain pressure upon the trigger to hold it in its rearmost position which would result in preventing the sear from engaging the hammer when the hammer was again cooked the triggeris provided with a projection 34 which is in the path of the hammer and is contacted thereby to force the trigger forwardly and the sear upwardly regardless of any finger pressure thereon. This permits the sear to engage the notch in the hammer and also permits the locking pin 29 to be rocked to locking position; it being understood that until the sear has been moved out of the notch in the locking pin the stop H which rocks the pin will be held against forward movement but immediately after the sear becomes disengaged from the notch in the locking pin the stop H can move forwardly under the influence of the spring so as to rock the locking pin to sear locking position.

It will be noticed that the foot 24 of the action bar stop H is exposed through the housing 3 so that in the event the shell has been placed in the gun ready for firing but it is desired to remove that shell without exploding it, pressure on the foot 24 will remove the stop II from the path of the action bar so that the action bar can be moved with the forearm rearwardly to eject the shell.

Having thus described my invention, I claim:

1. In a gun of the character described, an impact member, a trigger-operated sear to hold said member cocked, a lock for said sear, a slidably mounted action bar, a yieldable stopfor said action bar having a limited movement and operatively associated with said sear lock, means operated by the impact member to throw the stop into and out of the path of said action bar, the stop being in the path of said action bar when the impact member is cooked, and means operated by a limited movement of said bar to move said stop to cause the same to operate said sear lock to unlock said sear.

2. In a gun of the character described, an impact member, a trigger-operated sear to hold said member cocked, a lock for said sear, a slidably mounted actuating device, a stop member for said device having a limited movement, means to connect said stop member with said lock, means operated by the impact member to move said stop member into the path of said actuating member when said impact member is cooked and to move it out of the path of said actuating member when the gun is fired, a spring for said stop member normally tending to move it to a position to move said lock to locking position, said actuating member by a limited movement thereof adapted to contact said stop member and move it a limited distance against the tension of said spring to cause it to move the lock to unlocking position.

3. In a gun of the character described, an impact member, a trigger-operated sear to hold said member cocked, a lock for said sear, a slidably mounted forearm and action bar connected therewith, a tiltable locking member for said action bar and a spring for same capable of a limited endwise movement against the tension of its spring and being operatively associated with said sear lock, means for tilting said action bar locking member out of the path of said action bar when the gun is fired and means for tilting said action bar locking member into the path of said action bar after the gun has been again restored to firing condition to cause the same to move the sear lock to locking position, said action bar by a slight rearward movement of said forearm being caused to engage said action bar locking member and move it endwise against the tension of its spring to cause the same to move the sear lock to unlocking position.

4. In a gun of the character described, an impact member, a trigger-operated sear to hold said member cocked, a lock for said sear, a slidably mounted forearm and action bar connected therewith, a tiltable locking member for said action bar and a spring for same, said action bar locking member being capable of a limited endwise movement against the tension of its spring and being operatively associated with said sear lock, means operated by the firing movement of said impact member for tilting said actionbar locking member out of the path of said action bar when the gun is fired, yieldable means operated by the cooking of said impact member for putting a pressure upon said action bar locking member to tend to move it in the path of said action bar, said action bar when in its actuated position holding said action bar locking member from moving to locking position until said action bar has cleared the same by a forward movement thereof whereby the action bar locking member is caused to move into the path of said action bar, said action bar on a slight rearward movement thereof being caused to engage said action bar locking member and move it endwise against the tension of its spring to cause it to move the sear lock to unlocking position.

5. In a gun of the character described, an impact member, a trigger-operated sear to hold said member cocked, an oscillatory lock for said sear having a projection, a slidably mounted pivoted spring-actuated action bar stop member having a yoke into which said projection extends, a slidably mounted action bar, means for tilting said stop member into the path of said action bar when the gun is in firing condition with the hammer cooked and the sear locked, the rear end of said action bar lying in close proximity with the forward end of said locking member so that a slight rearward movement of said action bar will move said locking member rearwardly against the tension of its spring to rock said sear lock to unlock said sear.

6. In a gun of the character described, an

impact member, a trigger-operated sear to hold said member cocked, an oscillatory lock for said sear having a projection, a slidably mounted pivoted spring-actuated member having a yoke into which said projection extends, a slidably mounted action bar, means actuated by the hammer for tilting said member out of the path of said action bar when the gun is fired, means actuated by the hammer for placing said member in condition to be tilted into the path of said action bar after the same has been cleared by said bar upon a forward movement of said bar whereby a slight rearward movement of said bar will contact said member and rock said sear lock to release the same from said sear.

CHARLES A. YOUNG.