US2341033A

US2341033A - Firearm

Info

Publication number: US2341033A
Application number: US385611A
Authority: US
Inventors: Edward E Garland
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-03-28
Filing date: 1941-03-28
Publication date: 1944-02-08
Anticipated expiration: 1961-02-08

Description

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FIREARM Filed March 28. 1941 Edward@ fiar/an f BY AT1-0R auf! N NWN rearms.

Patented Feb. 8, 1944 E y simi-i3 UNITED STATES PATENT OFFICE FmEAaM Edward E. Garland, Belleville, N. J. Applieetien Mareh 2s, 1941, serial Ne. 335,611`

' (c1. 4zs9 4 Claims.

This invention relates to rearms and particularly to the ring mechanism of semi-automatic The operation of extraction, ejection, andreloading in autoloading firearms is so rapid that it would usually be impossible forthe shooter to remove pressure from the trigger sufliciently rapidly to prevent the firing of two or more shots for each pull of the trigger. To overcome this difculty various means have been proposed heretofore. Among these are the Y-type of trigger Vsear disclosed for example in the J. M. Browning Patent 659,507, issued October 9, 1900. One of the diiculties with said Browning construction is that the hammer is forced back so rapidly that it forces the trigger forwardly very rapidly, resulting in a stinging sensation which causes the nger to become sore after a certain number of shots have been red and the sensation of pain connected with shooting causes the shooter to inch, which results in the making of poor scores.

It is an object of the present invention to provide means which require that the trigger be released after the ring of a shot and again pulled before another shot canv be red, which means are so arranged that the re-cocking of the hammer cannot cause the trigger `to impart a blow upon the nger of the shooter.

Another object is to provide such a device adapted for use in a gun wherein the trigger islocated some distance to the rear of the hammer to permit the Vconstruction of such an arm having pleasing lines and balance. Y y

Another object is to improve the constructio shown in applicants Patent 2,189,202, issued February 6, 1940, which comprises an improvement upon said Browning Patent 659,507 and illustrates a means whereby the lines of the gun may be improved by rounding the grip portion of the stock and moving the trigger rearwardly retainngthe original position of the hammer and sear. f

It is another object to'provide a trip-'01T connection between a hammer and a sear Vso constructed that movement of the trigger will move the sear suciently far to disengage the hammer or other impact firing mechanism but wherein further movement of the trigger will result in a 'disconnection of the connecting means between trigger and the sear so that the sear may return toits normal hammer arresting position.

A more specific object is to provide such a tripoff arrangement in a. firearm in which the trigger is located Well rearwardly of the hammer,

including connections from the rearwardly placed trigger tothe sear adjacent the forwardly placed hammer.

Other objects will appear lfrom the following description of an illustrative embodiment of the invention taken together with the attached draw-A ingwherein: .i

' Fig. 1 is a side elevational view of ra firearm embodying my invention, a part ofthe receiver and stock being shown in cross-section, the hammer, sear, and trigger being in positionfor ring;

Fig. 2 is a view showing certain of the parts of Fig. 1, the trigger having been pulled just suiciently far to release the hammer; and

Fig. 3 is a view similar to Fig. 2, the trigger having been retracted `further so as to trip the connection between the trigger and the scar permitting the return of the sear to a position, whereI it may engage and arrest the hammer upon its return to its rearward position.

In said figures, the numeral II indicates generally the receiver of a rearm having a'stock I2 secured thereto. I3 designates a trigger plate which is preferably made separate from the receiver proper but is fastened thereto and possibly also to the stock. Said trigger plate is shown as having pivoted thereto the hammer I4 at the pivot point Ida, said hammer being provided. with a downwardly extending hook hib cooperating with the hook of a sear I5 pivoted at I5a to the trigger plate. A suitable sear spring such as I6 is provided to bias the scar clockwise as viewed in the drawing.

I'I indicates a trigger pivoted at I 'Ia to the trigger plate and having an upwardly extending portion IIb to which is pivoted Aat I'Ic a pawl I8 which is biased in a counterclockwise direction by means of'al suitable spring such as the spring I9 shown.

Pivoted upon a cross bolt .or other suitable pivot 20 is a roller 2I to which is pivoted at Zia a, link 22 pivoted at 22a to the sear I5. Said roller 2| is formed with a shoulder 2lb against which the pawl I8 may bear. It is also provided With a camming shoulder 2Ic just rearwardly of the shoulder 2lb. l

The hammer is normally biased forwardly by means of any suitable spring such as the leaf spring 22 fulcrumed at 23 and boosted in its action by means of plunger 2 4 operated by the powerful coil'v spring 2da. lThe spring 22 preferably acts upon the hammer I4' through a roller |40.-

In the parts shown in Fig. 1 it will be noted that the hammer spring strongly biases the hammer towards firing position but that its movement is arrested by hook |513 on the sear. Furthermore, pawl I8 is in position behind the shoulder 2lb and due to the pressure of spring I 9, pawl I8 is pressed upon the roller 2| and the trigger has been moved clockwise to the limit of its motion. It will be seen therefore that the single spring I9 performs two functions, that of trigger spring and a spring to hold the pawl I8 downwardly.

If now the trigger II is pulled the pawl I8 will press against the shoulder 2lb, rock the roller 2l counterclockwise, move link 22 to the left, rock v sear I5 counterclockwise, releasing the hammer. The parts will now be in the position shown in Fig. 2, it being noted that the hammer is free to begin its excursion to the firing position. v At this time the pawl I8 is still in engagement with the shoulder 2lb but the shoulder 2Ic on the roller 2I is in position to lift the link I8. Further movement of the trigger is unavoidable due to the release of the friction which the thrust of the hammer spring had formerly appliedv to the hook |517 of the sear. TheY slightest further movement will cause the pawl I8 to be rocked suiiiciently far so that shoulder 2Ic has camm'ed it o the shoulder 2Ib. When this occurs roller 2I turns clockwise under the impetus of sear spring IB working through link 22.

During this time the sear has also rocked clockwise, presenting its hook I'5b in position to engage the hook Mb of the hammer I4 upon the return of the hammer by the autoloading mechanism of the arm. The hammer is therefore arrested and cannot spring forward to fire the next cartridge.

In order to fire another cartridge it is necessary for the shooter to rst release pressure upon the trigger I1 so that the pawl I8 may drop down into position behind the shoulder 2Ib. The parts have therefore resumed the position shown in Fig. 1 and are ready for the firing of the next shot.

It will be noted that the construction shown and described will serve admirably to accom.- plish the objects stated above. It is to be understood, however, that the construction disclosed above is intended merely as illustrative of the invention and not as limiting as various modifications therein may be made without departing from the invention as dened by a proper interpretation of the claims which follow.

Iclaim:

1. In an autoloading firearm, spring loaded impact firing means, a sear for normally arresting said firing means, a sear biasing spring, a trigger, a trigger biasing spring for biasing the trigger to normal position, connection means between said trigger and sear comprising a pawl pivoted on the trigger and a second pivoted member cooperating therewith and having a shoulder and a camming projection with which the trigger actuated pawl `co-acts, the abovementioned elements being so constructed and arranged that the trigger will rst move the second pivoted member and thereby the sea-r to impact firing means releasing position and further movement of the trigger will cause the camming projection on the second pivoted member to disengage the pawl from the shoulder on the second pivoted member and thereby serve to break the` connection between the trigger and the sear so that the sear may return to its normal position to retain the impact ring mechanism upon the return of the latter to original position.

2. In an autoloading firearm, spring loaded impact ring means, a sear for normally arresting said ring means, a trigger located well rearwardly of the sear and provided with a forwardly extending pawl pivoted to the trigger, a pivoted intermediate member formed with an abutment shoulder adjacent the end of said pawl and a camming projection underlyin'g'said pawl, and a connecting link between said intermediate member and said sear, the above-mentioned elements being so constructed and arranged that ythroughthe sear toimpact ring means releasing position and upon further movement of the v trigger said camming projection will lift the pawl above said shoulder and serve 4to break the connection between the trigger and thel sear lso that the sear may return to its normal positionK to retain the impact ring mechanism upon the return of the latter to original position. v 5

3. In an autoloading firearm, spring loaded impact firing means, a sear for normally arresting' vsaid ring means, a trigger located well rearwardly of the sear and providedwith a forwardly extending pawl pivoted to thetrigger, a spring: for biasing said pawl downwardly, a pivotedin-` termediate member formed with Yan abutment' shoulder adjacent the en'd of said pawl-andi a camming projectionv underlying said pawl, and a connecting link between said intermediate member and said sear, the above-mentionel elements being so constructed and arranged that movement of the trigger will cause said pawl to first move the intermediate member and therethrough the sear to impact iiring means releasing position and upon further movement of the trigger said camming projection will lift the pawl: above said shoulder and serve to break the connection between the trigger and the sear so'that the sear may return to its normal'position to retain the impact ring mechanism upon the return of the latter to original position, and upon release of the trigger said trigger pawl spring will return the trigger to normal position with said link in position adjacent said abutment.

4. In an autoloading rearm, lspring loaded impact firing means, a sear for normally arresting said firing means, a trigger located rearwardly of the sear and provided with a forward- 1y extending pawl pivoted to the trigger, a spring biasing said pawl downwardly, a sear'operating member formed with an abutment shoulder adjacent the end of said pawl and a camming projection underlying said pawl, the above-mentioned elements being so constructed and arranged that movement of the trigger will first move the sear to impact firing means releasing position and upon further movement of the trigger said camming projection will lift the pawl above said shoulder and serve to breakv the connection between the trigger and the sear so that the sear may return to its normal position to retain the impact ring mechanism upon its return to original position, and upon release of the trigger said trigger pawl spring will return the trigger to normal position with said pawl in position adjacent said abutment.

EDWARD E. GARLAND.