US1381448A - Firearm - Google Patents

Description

J. BROWNING.

FIREARM.

APPLICATION FILED JULY 28. 1920.

Patented June 14, 192:1.

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- lfo whom it may concem um@ $174125 PATE- NT j QFFICE; J

awww 'e 'Sneeiilation of v1030. Serial greased xcartridges. In-this case I use av occasional yincold weather in using membe throughoutthe several views..-

cartrid e guide with double cam, one for thebullet and one for the 4rim of the cartrid the'same asin my Patent No. 1,083,384 ofl anua 16, 1914. vIthowever, happens t eased cartridges that the column of cartrl ges is not. pushed forward quickly enough when the breech-bolt moves. back of thehead of the `first cartridge, with the result that the breech-block comes forward under the cartridge head and. fails topush it-mto the chamber. @To obviate this diicul I employimprovedA mechanism for pic g up therst cartridge and pushing 1t into the' chamber whether the magazine spring moves itforwardf'or not. v 1

Referringto the drawings: Y.

Fi re 11 is, a sectional side elevatlon of theame, action andcertain adjunctive n'rs of a rifle involving' the invention., the parts being shown advanced.

Fig. 2 isa practicall similar v1ew of the principal elements of 1, with the movable parts in retracted or ac kward positlon.

3-is a cross section on, the hne 3 3 of Flg. llookingtoward the r1 ht. Figa 's atop planl viewo the block.-

c; l 4 Fig.= 5.is..a top planview, and

breech 6,' 1sa side elevation of a pusher. .-gcharacters refer vto like. parts The frame or receiver of the gun, is denotedby2`and it is generally speaking, like thatfshown in the, `Letters Patent hereinbefore mentioned. The magazine comprisesl a passage 5,'into.-,which the cartridges are inserted and fed automatically therealong by the flexible follower 6 Ithe forward end of which engages the warmest-cartridge to advance the line of cartridges along the passage for subsequent introduction Yinto the chamber of the barrel. ,Inmthe' frame' or re.v

ceiver 2, is the breech-block 7, the backward L evfrievf original appiicauon med april 27,1920, sex-m no. :vanaaf invaded ana p -tnna-ppue'on med my as; No. 399,545; v

motion of the breech-block being brought about bythe pressure of the gases generated during .ir1ng, while forward Ymovement thereof 1s effected by the recoil spring (not shown). 'lfhe irlng pin is denoted by 11 and ltssprmg by-12, the `firing' pin having a point 13, which strikes the cartridge.

After the foremost cartridge passes .from

#fiammante a,

the passage 5, it enga es the cam surfaces 8 and 9, and, as it fal s, is directed vthereby 1nto the path of the breech-block 7 which then inserts it intothe chamber ofthe barrel. This is the normal action, but there may be cases, however, as I have valready noted, in which the cartridge does not get into the path 'of the breech-block. To 1nq sure this latter result under all conditions,

I provide means of a positive nature by which the foremost cartridge when out of the magazine passage is pushed forward posltively into the path of the breech-block.

vAs shown this means is in the form of a pusher 14 oscillatory on the upper side of the breech-block, which has a longitudinal channel to receive the pusher, the latter having about its central under side the lug 16 which engages the bottom of the channel. In

tension 17 which fits a cut in the side. of the breech-block and thus prevents endwise movement of the pusher with respect to the breech-block. The' rear end ofthe pusher- 7 isxnoved backward by recoil and that its forward end is back of the head of the front addition to this the pusher has a lateral excartridge' of the row, saidv front Acartrid e having just emerged from the passagei. n Fig. 2 the breech-blockis shown as all the way back, the pusher having been causedto be, moved to its operative position. `When, therefore, the breech-block is advanced, the pusher will strike the head' of the first cartridge, thenout of the passage 5, `and will positively cause said first cartridge vto be guided downward by the cam surfaces8 and' end of the breech-block. 'lhe extractor is supported by the front end of the plun er 25,"

front cam end of the plunger against tlief lower, cam surface ofthe extractor. An examination of the drawings, will show clearly that this thrust 'of the plunger 25A a ainst the cam surface of the extractor 22, w 'ile holding the extractor yieldingly 1n its upward position also holds the upper end of the-.extractor yieldingly againstthe face of the breech-block. When the breech-block 1s in'itsA advanced position the upper end of rearwardly beyond the rear end of the breech-bloclgand means'V for engaging the rear'f end of Ve pusher on the backward movement of he breech-block to condition the pusher toA pick a cartridge from the magazine and to cause the cartridge thus .picked up to move into the path of the breech-block. v l v 4:. A firearm comprising a frame, a magazine having means to guide the cartridge toward the barrel, a breech-block, a trigger guard, a 'cartridge pusher, the breech-block having a ychannel in its upper side in which the lcartridge pusher is movably mounted,

the extractor engages the rim of the car\\the rear end of the cartridge pusher extendtridge in the usual manner. When the point 13 of the iirin pin strikes the cartridge the roughened en of the point will be slightly embedded and the extractor Will with the point clamp jointly the shell to insurethe shell being withdrawn Vfrom place. As the breech-'block moves backward during which ltimethe cartridge is gripped by the extractor and the firing pin, it comes in contact with the downward .depending shoulder 27 at which time it is turned on the point'of the extractor and discharged positively from the receiver. ,a4

Through the breech-block. 7 is tapped the screw 28 theupper end of which' engages the plunger 25'so that when necessary the extractor may be adj usted vertically` through the action of the screw engaging the plupger and effecting corresponding movements of the extractor. l

The present application' isla division of thatiled by me April 27, 1920 under .Serial Number 376,922.

What I claim is: f v

1.v :A fire 4arm comprising a frame, a breech-block, a magazine having means to guidevthe cartridge toward the barrel, a trigger-plate, a pusher on the breech-block, and means on the trigger plate for operating the rear end of the pusher to tip down the back end and thus cause the front end of the pusher to tipu'pand engage the cartridge which has just-emerged from the magazine and push it into the path of the breech-block.

.2.'1A yfirearm comprisin a frame, abreechblock supported for sli ing forward and backward'movement by the frame, a .magazine. having means to guide the cartridge toward the barrel, a `-trigger guard, a pusher on the breech-block, and means on the trigger guard for operating the rear endl of the pusher to condition it to engage the cartridge which has just emerged from the magazine and push it into the path of the breechblock. 1 3; A firearm comprising a frame, a breechblock, a magazine .having means to guide the cartridge toward the barrel, a pusher'supported bythe breech-block and extending /in itsbackward position, for pushing the cartridge'which has emerged from the magazine into the path of the breech-block.

6. A firearm comprising a frame, abreechblock, a magazine having a passage for the cartridge, situated above the breechblock, a trigger guard, a cartridge pusher movably supported by and 0n the upper lportion of the breech-block, and means on the trigger guard for operating the rear end of the pusher to tip down the back end and thus cause the'front end of the pusher-to tip'up andv engage the cartridge which is just emerged from the magazine and push it into the path of the breech-block on the. forward movement thereof.

7. Are arm comprisinga frame, a breechblock, av magazine 'having a passage for the cartridge, situated above the breech-block, a trigger plate, a cartridge-pusher supported for oscillation between its -endsby the breechblock, and means on'. the trigger plate, for` imparting a tipping movement to the pusher when the breech-block'is' back to thereby elevate the forward end of the pusher, the

lframe having a cartridge guide to impart a JOHN M. BRowNING.

Witnesses: Y f

M. A. BRoWNING, S.' N. j HosoN,

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