US2055020A - Gun - Google Patents

Description

5- c. w. WADSWORTH GUN Filed April 12, 1934 a m|||r l l mllll w M W M W N vn h w M 4 ilfi y Patented Sept. 22, 1936 PATENT OFFICE GUN Clair W. Wadsworth, Fulton, N. Y., assignor to Hunter Arms 00., Inc., Fulton, N. Y., a corporation of New York Application April 12, 1934, Serial No. 720,252

5 Claims.

This invention relates to guns, and has for its object a gun lock action which is particularly simple and economical in construction and which contains no delicate parts to get out of order.

, It further has for its object a gun lock mechanism in which the motion of the trigger is transferred to the hammer to retract and release it through a thrust member or sear acting through a lever or other movable member coacting with the hammer and on which lever the spring, which urgesthe hammer, acts.

-It further has for its object the assembly of the parts of the gun lock mechanism including a hammer actuated by a spring-pressed lever, in the frame with particular reference to the location of -a long or large hammer actuating lever in the hand or pistol grip of the gun.

It further has for its object a hammer construction in which the firing pin is an integral part-of pr fixed to the hammer to move therewith togetherwith means for retracting the hammer far enough to withdraw the end of the firing pin out of thefiring chamber when the gun is idle or the gun lock mechanism in normal or starting position.

-It f-ur-ther has for its object an assembly of the barrel of the gun in a block which coacts with the breech blockof the frame, the barrel telescoping into and snugly fitting the bore of the first block. l

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawing in which like characters. designatecorresponding parts in all the v ews. a a "Figure 1 is a fragmentary side elevation, partly in section and parts being removed, of a gun embodying myinvention.

j Figures 2 and 3 are respectively sectional views .on lines 2.-.--2, 3.-3, Figure 1.

, The gun here illustrated is for firing cartridges containing gas, as tear gas. The gun lock mechanism comprises generally a hammer movable forwardlyand rearwardly in the frame and preferablybeing sildably mounted in the frame, a hammer actuating lever arranged in the frame at an angle to the direction of movement of the hammer and being here illustrated as pivoted at a point remote from the hammer, that is, at its lower end in the frame and being articulated at its upper end into the handle, the lever extendinto the pistol grip of the gun, a trigger mechanism including a trigger pivoted in the frame and a thrust member, sear or latch prefera ably pivoted thereto at one end and thrusting at its other end against the lever and being guided in the frame, the sear and lever having coacting shoulders which ratchet out of engagement with each other when the trigger has been pulled far enough to cock or retract the hammer and thus release the lever, and hence the hammer, so that the hammer can be impelled forwardly by a spring which acts on the lever.

The lock mechanism further comprises a hammer having the firing pin fixed thereto so as to move as a unit therewith and a lost motion connection between the lever and the hammer, and a spring for taking up the lost motion to retract the hammer sufficiently to withdraw the firing pin out of the firing chamber when the firing mechanism is in starting ornormal position.

ldesignates generally the frame of the gun which is formed with a breech block 2 and with a pistol grip portion 3. -4 is the stock secured to the frame in any well known manner. The frame encloses an internal cavity including an upper horizontal portion 5 and upright portion 6 extending into the pistol grip 3. The sidesof the frame are covered with the usual plates and grip panels, not shown. l

1 designates a block hinged at 8 to the for-, wardly extending portion 9 of the frame, this block being formed with a bore ID for receiving a tubular barrell I. The bore of the block tapers as shown from the rear or breech end toward the front end; and the barrel or tube H is also tapered the full lenth thereof from its rear end forwardly and the tube pressed into the bore of the breech block from the breech block end thereof, the rear portion of the barrel located in the block forming the greater part of the chamber for the cartridge l3.

l4 designates a portion of the extractor mechanism which pushes out the cartridge when the barrel mechanism is moved about the pivot 8 to open the breech of the gun. The extractor mechanism may be of any suitable construction and forms no part of this invention.

I5 designates a latch for holding the breech closed and operable topermit the breech to open, this latch mechanism forming no part of the invention andmay be of any suitable form,'size and construction.

l6 designates the hammer, this being slidably mounted to move forwardly and rearwardly rectilinearly in suitable guide passages formed in spacedapart lugs ll, I8 in the frame, and I9 is a firing pinwhichis fixed to the hammer and usually is an integral part thereof, this moving V through a suitable passage in the breech block and operable to project the nose thereof into the firing chamber tofire the cartridge when the hammer is operated.

" '20 designates the hammer operating member or lever extending at an angle to the direction a offmovement of. the hammer, this extending downwardlyinto the chamber 6 of the pistol grip and being pivoted at 2! at its lower end, the upper end being pivotally connected, or articulated;

- to theihammer' and by a lost motion connection for a purpose to bepresently described. The

l, lever 20 is urged forward to actuate the'hammer by'a spring 22 in the chambe'r'fi and interposed ,between the rear wall of the chamber and the rear; side of the lever 20. The forward motion of the lever under the action of the spring is limited by a stop shoulder or shoulders 23.

The-trigger mechanism includes; a trigger 24 and aithrlust member or sear ZEcoacting therewananwwaa the lever, it 'coacting with a ratcheting action with "one ofthe'parts with whichfitcoact's, preferably thelever Zfl, in such a V 25,

acting, that is, it cooks and releases the hammer manner that the 1 trigger mechanism issingle 1 upon a single pull .of the trigger. The trigger 24 is-here shown as pivoted at 26 within the frame above the hammer and extends idownwardly crosswise of the front portion of the hammer into the trigger guard opening 2 1. 28' is a trigger 1 r spring's ervingto press it forwardly into its normalor starting' position against the stop'29; The

upper" portionyof the trigger is bifurcated pro 3 ,viding "a passage between the bifurcations through V which the hammer 16 moves.

- l'I'he sear or" thrust member 25 is'prefei'ably pivoted at 30 to the trigger below the hammer and extends ,in' a, general horizontal direction rearwardly through a guide passage 3l in the lugtlll and normallyfthrusts at itsf'r'ear end against'the lever 20. The sear is thrust upward- 1y about its pivot 3D against the upper wall of the guide passage by a spring 32 interposed between the sear and the trigger, the sear'extendingbetween the bifurcations of the trigger, V

The sear, and the lever 20 coact with a ratcheting action which permits the sear to ratchet out of engagement with the lever when the trigger pulled, the sear' thrusts against the shoulder 34 and hence swings the lever 2 backwardly against the, action of'rth'e spring 22 retracting the hammer therewith. When the hammer has been re- 'tracted, owing, to the pivotal position of the trigger, the pivotalposition of the lever 20 and the coaction ofthe pivoted sear 25 with the upper walrsl of the guide; passage 3|, the sear 25 will 65 ratehet out of engagement with the shoulder 36 or rather the passage 33 will be brought into alinement with the sear 25 and the shoulder 34 will-ratchet out of engagement with'the nose 35 V 6f the sear, soxthat the spring'ZZ is free to react andpress the lever ZU'forwardly', the sear then passing int'o'the' passage '33 The forward 'mo- I tion of the lever under the influenceof the spring '22 aetuatesthehammer to fire the cartridge.

' The lost motion connection between the lever 20 and the hammer, as here illustrated, com- "has been actuated far enough to pull back: the hammer and,r as here illustrated, the lever 20 Jispformed with a; passage 33 therethrough and prises a fork 36 at the upper end of the lever extending astride the hammer, and the hammer being formed with grooves, as 31, on opposite sides for receiving the bifurcations of the fork. The width of the grooves 31 is slightly greater than the width of the bifurcations to provide a lost motion between the lever 20 and the hammer l6, and the hammer is provided with a compression spring 39' located internally thereof and thrusting at one end against the rear sides of -the bifurcations of the fork and at its rear end against a suitable spring abutment 38 at the rear of the hammer. When the parts of the gun mechanism are in their starting or normal position, as shown in Figure 1, the lever 20 is against the stop -23, and thespring 39 is free to react to pull the hammer slightly rearwardly far enough to pull the nose of the firing pin l9 out of the firing, chamber. When the trigger 24 is pulled, the sear 25 thrusts against the lever 22 and moves the lever rearwardlyfon its pivot against the action of the spring '22. It also compresses the spring 39'until the yoke 36' engages the rear walls of the grooves 31 so that further move ment retracts the'hammer. As the trigger appreaches the end of its rearward pull, the sear ratchets out of engagement with the lever,'permitting the spring 22 to react and the hammer 16 to be urged forward, projecting the nose of the firing pininto the'cap ofthe cartridge, firing the cartridge. When the lever comes up against the stop 23, the spring 39 is free to react slightly withdrawing the hammer l6 and the firing pin 19 so'that its nose is out of the" firing chamber, and does not interferewith the extracting of the cartridge andthe insertion of a new one,

WhatI claim is: a I '1. In a gun, a frame, and un look mechanism comprising a hammermovably mounted in the frame, a lever element extending at an 'angle' to the direction of' movement of the hammer, and pivoted to the frame at a point remote from the hammer and being pivotally connected directly to the hammer, a spring acting on the lever to press it in a direction to actuate the hammer, a trigger element mountedin the frame and a sear coacting with the trigger element and with the'lever element, the sear coacting with a ratcheting action with one of the elements with which it coacts to shift out of engagement therewithwhen the trigger is pulled far enough to actuate the lever to retract the hammer. f

2. In a gun, a frame formed with a horizontally extending chamber and a downwardly extending chamber in theportion of the frame which constitutes the frame of a pistol, a hammer slidably mounted in the horizontally extending chamber and movable lengthwise thereof, a lever arranged at an angle to the hammer. and extending into the downwardly extending chamber and being pivoted therein, said lever being articulated at its upper end to; the hammer, a spring acting on the lever to force it in a forward direction to actuate the hammer, a trigger'pivoted in the frame above the front end of the hammer and extending downwardly crosswise of the hammer, a sear located within the frameand coacting at its front end with the trigger and at its rear end with the lever, the framebeing formed with a guide for the sear, the sear and'one of the parts with 7 which it coacts having ratcheting 1 means for releasing the lever when the trigger has been pulled far enough to retract the hammer,

" 3. In a gun, aframe, and a gun lock mecha- 'nism in the frame comprising a firing'p in, a

slidable hammer fixed to the firing pin so that the firing pin and hammer move as a unit, a single acting trigger mechanism for cocking and releasing the hammer, a member actuated by the trigger for retracting the hammer, said member being connected to the hammer by a lost motion connection, a spring acting on said member for pressing the same forwardly to actuate the hammer, a stop limiting the forward movement of the lever, and a second spring interposed between said member and the hammer for taking up the lost motion in a retrograde direction to withdraw the hammer far enough to withdraw the firing pin out of the firing chamber, when the hammer on a single pull thereof including a member coacting with the hammer, a spring acting on said member to urge the hammer forwardly, a stop for limiting the forward movement of said member, the hammer being formed with a chamber at the rear of said member, a spring in said chamber and acting upon said member whereby when said member is against the stop the last named spring acts to retract the hammer relatively to said member far enough to withdraw the firing pin clear of the firing chamber.

5. In a gun, a frame formed with a firing pin chamber, and a gun lock mechanism comprising a hammer, a firing pin secured to the hammer and movable in the frame to project into the firing chamber, a single acting trigger mechanism operating to retract and release the hammer and firing pin upon a single pull of the trigger, the trigger actuated mechanism including a member connected to the hammer by a lost motion con- CLAIR W. WADSWORTH.

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