US2097782A - Firearm - Google Patents

Description

Nov. 2, 1937.

Hllll M. A. BROWNING 2,097,782

FIREARM Original Filed May 27, 1935 2 Sheets-Sheet 1 l @Q m Snventor MRH//VEHAHow/WNG Gttorneg Nov. 2, 1937. M. A. BROWNING FIREARM loriginffll Filed May 27, 1935 2 sheets-sheet 2 nventor MHR/NEPA/QoW/V/N@ (Ittorneg Patented Nov. 2, 1937 iii'ilY STAT garant ois-rice Planear/r @riginal a plication May 27, 19,35, Serial No.

4 Claims.

'This invention relates to rearms and particularly to a rearm of the lever action type and is a division of my application Serial No. 23,561 led May 27, 1935, to which reference may be had for details not incorporated as a part of this application.

The aim of the present invention is to provide a simple and effective firing mechanism wherein accidental operation of the scar and firing of the firearm due to shock or jar are prevented.

Other objects will be in part obvious and in part pointed out more in detail hereinafter,

'Ihe invention accordingly consists in the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth andY the scope of the application of which will be indicated in the appended claims.

In the accompanying drawings:

Figure 1 is a sectional View taken generally longitudinally and vertically through the receiver of myflrearm and shows the various parts in their normal or ring positions;

Fig. 2 is a rear view of the receiver or frame; I

Fig. 3 is a transverse sectional view through the receiver or frame, the same being taken on line 3-3 of Fig. 1;

Fig. 4 is a view similar to Fig. 1 but showing the operating lever in forward position;

Fig. 5 is an elevational view looking at the right-hand side of the detached breech block;

Fig. 6 is a front view of the breech block; and

Fig. 7 is a bottom plan view thereof.

Referring to the drawings in detail, I0 designates the usual combined stock and forearm generally of the military type; Ii is the barrel, and I2 designates the receiver or frame of suitable construction. In the present illustrative disclosure, this receiver has a parti-cylindrical breech receiving portion I3 and a pair of depending spaced parallel flanges I4. Secured to the forward end and constituting a part of the receiver is a barrel attaching member in the form of a ring I5 having a depending web or block I6 securedbetween the forward portions of the flanges by rivets Il. Between the cylindrical portion I3 and the ring I5 is the usual loading and ejecting opening IS. The block I5 extends downwardly to the lower edges of the flanges I4 and its rear face constitutes a guide for a magazine I9. Lo-Y cated between the iianges I4 at their rear lower corners is a block 2 2 secured in place by rivets 23. A safety is supported by this block, as hereinafter described more in detail. At the rear Divided and this application .lune 2Q 1936, Serial No. 83,048

end of the cylindrical portion of the receiver is a ring portion 24 which is internally threaded -to receive a plug 26 supporting a rear' sight 21. There isA further provided between the anges a cross block 28 which serves as a lockabutment and as a guide for the trigger connector. It is secured in place by rivets 29.

Mounted for reciprocation in the cylindrical portion of the frame is a-breech block similar in construction to that shown in my copending application Ser. No. 23,561 and which comprises generally a cylindrical steel rod or bar 35 having its forward end slabbed or cut-away on its under side so as to clear the magazine. At the forward end and on opposite sides of the breech block are the usual spring pressed extractors 36 which need not be described in detail here as their construction and operation are well-known in the art. The breech block is bored out so as to accommodate a striker 4Q having the usual firing pin 4I adapted to strike against the rim of a cartridge. Intermediate its ends, the striker is vertically slottedso as to accommodate a cam l43 on the upper end of an operating lever 44. The striker, on its under side, is provided with a sear notch 45. A main spring 41 compressively engages against the rear of the striker.

The breech block is longitudinally slotted on its under side, as at 50, so as to accommodateV a sear 5I having the usual sear notch at its forward end adapted to cooperate with theV notch 45 in the striker. The scar is pivoted on a pin 52and is normally urged into holding or cocked position by a sear spring 53. The sear is' connected to a trigger 54 by a connector 55 supported within a slot 55 in block y28. The trigger is pivoted at its forward end on a pin 59. The block 22, at the lower rear corner of the receiver, is slotted, as at Si, so as to accommodate a rearwardly extending projection 69 on the trigger when the latter" is pulled. The trigger also has a hooked shaped projection 62, the end of which is adapted to enVV gage a pin' 63 carried by said block so as to limit the downward movement of the trigger. Adapted to extend into the slot 6I is a safety 68 compris'- ing a transversely shiftable member having a notch 54 adapted, when the safety is in off position and the trigger is pulled, to accommodate a lug on the trigger. As is usual, when the safety is moved to on position, the slot is moved out of registry with said lug so that the trigger cannot be pulled. The safety is maintained against turning by a pin 55. This pin has another function which will be described later.

InAv accordance with the present rinven'tion; the.' Y

firing mechanism is such that accidental operation of the sear and firing of the gun due to a shock or jar are prevented. In this instance, the rear end of the sear has a hooked portion 10, the notch of which faces forwardly. The connector 55 is pivotedbetween its ends to the cross block 28 as at 1l. 'Ihe connectorV has a vertical slot 12 which accommodates the pin 1| and permits a vertical sliding movement of the connector within slot 56. Slot 56 is of such size that the connector ts loosely therein and is free for a slight pivotal movement on pin Il. 'I'he connector has, at its upper end, a rearwardly extending lug 13 adapted to engage in the notch provided by the hookedV portion 10 of the sear. The trigger has between its ends a recessed portion 14 having a pin 14' extending thereacross, and the lower end of the connector 55 has a horizontally extending notch 15 which receives this pin. A spring 16 serves to urge the connector into sear engaging position and also serves to urge the trigger into unpulled or normal position. 'Ihis spring Yis coiled about a pin 11 and has one end engaging Vthe rear face of the connector 55 below the pivot H thereof to aid in maintaining lug 'I3 in the notch Vprovided by hooked portion 19. The other end of the spring engages on the top of the projection 62 of the trigger. With this arrangement, it will be seen Ythat, when the-safety is on, the trigger, the

connector, and the Sear are positively locked in the positions shown in Fig. 1 and, therefore, the sear cannot be jarred out of striker holding position. When it is desired to re the gun, the

safety is moved to off position, and the trigger is pulled. Pulling of the trigger raises the connector, V(vertical movement of the same being permitted by the slot 12) and the tail end of the sear is raised so as to disengage the sear from the sear notch 45 in striker 40 whereupon the "latter will move forwardly with a quick, sharp movement under the influence of the main spring 41. The purpose of permitting a slight pivotal action of the connector is to insure that the connector will properly engage the sear, in the event they may not be properly lined up at the time of initial engagement of the sear with the connector as the breech block is moved forwardly.

The mechanism for operating the breech block, which isV similar to my copending application Ser. No. 23,561, generally comprises the lever 44 pivoted by a pin 9| to the breech block so that the cam 43 extends into the vertical slot in the breech block. The lever projects down between the flanges ofthe receiver and through a slot in the trigger plate and has, at its lower or free end, the usual handle in the form of an elongated loop'.. This handle normally lies closely adjacent tothe pistol grip provided on the stock. The operating lever is pivotally connected to the receiver through the instrumentality of a link 94. The link is pivoted between the flanges of the receiver on a pin 95. The link is slotted so as to receive the lever and is pivoted to the lever by a pin 96. The lever 44 has, beneath its pivot with the breech block, a rearwardly extending arm 9'!y of such length that, when the lever is in the position shownV in Fig. 1, the rear end of this arm engages the front face of the cross block. The arm 91 is provided, adjacent its rear end, with an upwardly extending locking lug 98 adaptedY to be received in a cross notch 99 on Ythe underside of the breech block. -The lever is releasably held in its rearmost position shown in Fig. 1 by the spring pressed pin 66 which projects rearwardly slightly beyond the block and is adapted to be received in a recess in the lever, as shown.

As many changes could be made in the above construction and many apparently widely differentV embodiments of this invention could be made without departing from the scope thereof,

it is intended that all matter contained in the Y slidably mounted therein, a striker slidably mounted in said breech block, a sear pivoted-'to said breech block'and adapted to cooperate with Ysaid striker to hold the same in cocked position,

atrigger, a safety directly cooperating with said trigger for preventing pulling thereof, and a connector engageable with said trigger and sear and adapted to release the sear from the striker when the trigger is pulled, said connector and sear having interengaging means for preventing the sear from being jarred out of striker holding position Y when said safety is in on position.

2. In a rearm, a receiver, a breech block slid- Y ably mounted therein, a striker slidably mounted in said breech block, a sear pivoted to the breech block'a'nd adapted Vto cooperate with the striker to hold Ythe same Vin cocked position, a trigger pivoted to said receiver, a safety directly associated with said trigger, and a connector connected to said trigger, said sear having a tail end provided with a hooked portion and the upper end of said connector having a rearwardly extending l lug adapted to engage in said hooked portion whereby jarring of the sear from striker holding position is guarded against while the safety is on. Y'

3. In a firearm, a receiver, a breech block slidably mounted therein, a striker slidably mounted in the breech block, a sear pivoted to said breech block and having a tail end providedV with a hooked portion, a trigger pivoted tothe receiver, a safety engageable with the trigger to prevent its operation, and a connector between the trigger and the sear comprising a member pivotally and slidably mounted in the receiver and having at its upper end a rearwardly extending lug engaging in the hooked portion of said sear at all times when the striker is in firing position.

4. In a firearm, a receiver, a breech block slidably mounted therein,V a Ystriker slidably mounted in the breech block, a sear pivoted to said breech block and having a tail end provided with a hooked portion, a trigger pivoted to the receiver,Y

a safety directly engageable with the trigger, a

connector between the trigger and the sear com- V prising a member pivotally and slidably mounted Von the receiver and having at its upper end a rearwardly extending lug engaging in the hooked portionV of said sear when the striker is in firing position, means pivotally and slidably connecting the lower end of the connector to the trigger, and a spring normally urging said triggerv to normal position andnormally urging the lower end of said connector forwardly.

MARRLNER A. BROWNING.AV

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