US2224928A - Firearm - Google Patents

Description

y Dec. `n17', 194i).

FIREARM Filed April 26. 1938 Wfl'! i -1 Il Il l, l g

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FIREARM Filed April 26, 1938 j2 Sheets-Sheet 2 Dec. 17, 1940` Patented Dec. 17,1940

I UNITED STATES l EIREARM Eugene G. Resing, Hartford, Conn.

ApplicatOIi ADI'VI'ZG, 1938, Serial N0. 204,323

3 Claims.

My invention relates to that class of firearms that are commonly supported against the shoulder when being iired, and an object of my invention, among others, is the production of a iirearm 5 of this type having simple and eficient means for supplying ammunition to the barrel and for ,the regulation of such supply; and a further ob ject of my invention is to provide a ring mechanism that is simple in construction and particui larly ecient in operation.

One form of a firearm embodying my inven- 20 but showing the receiver and the rear end of the barrel.

vFigure 3 is a similar view on a scale still iurther enlarged but showing the rear end oi`- the stock only. I y 25 Figure 4 (Sheet 2) is a view on enlarged scale in central lengthwise section through a portion of the stock and mechanism supported thereby, the latter being shown ready for firing', the lbreach bolt and ring pinbeing in their forward posi- 30 tions and the hammer being cocked.

l Figure 5 is' a simnar view but with the breach bolt, iiring pin and hammer intheir rearward positions just previousl to the loading operation.

Figure 6 (Sheet 1) is a view in lengthwise sec- 35 tion through a fragment of the stock showing the position of thesear and appurtenant parts just after its release of'thehammer ina firing action.

Figure 7 is asimilar view illustrating the operation of the hammer upon the sear during its 40 forward movement.

Figure 8 is an isometric perspectiv'eview of the retainer for temporarily restraining movement of the cartridges inthe magazine. y

Figure 9 is a similar view of the discharge tip 45 of the magazine. Figure 10 (Sheet 2) is a view in cross section on ,gli plane denoted by' the dotted line.v lli-'I0 of l Figure 11 is a similar view on a plane denote 50 'by the dotted une of Fig. 4.

Figure 12 is a similar view on la. plane denoted by the dotted line I2-I2 of. Fig.4.

Figure 13 is another similar view on a plane denoted by the dotted line I3-i3 of Fig. 5.

Figure 14 is 'still another similar 'view on ya manner as shown in Fig. 5 of thedrawings.

plane denoted by the dotted line Ill- I4 of Fig. 5.

In the accompanying drawings the numeral I5 denotes the stock of my improved iirearm .that may-be composed of Wood of any ordinary shape common to firearms of this type and which is recessed` on its upper side to contain a receiver I6 to which the rear end of the barrel I1 is se cured in any ordinary manner. The receiver fis secured at its front end to the stockby'means of a post I8 having a reduced threaded end screwed 10 into the receiver the postbeing located in a recess in the stock, as shown in Fig. 4. A holding screw I9 extends through a bushing in the vstock and into the post I8,to secure the latter and the receiver in place, this holding screw being 15 knurled so that it may be turned by the thumb and fingers. A lug projects from the inner end of the screw into the barrel I1 to support the' latter. A

A magazinel 2l in the form of a tube extends 20 j lengthwise through the stock, this tube being enclosed in a loading *case 22 in the form of a tube that is threaded to receive a positioning Inut 23 abutting against the inner end of a recess 24 Jextending inwardly from the butt of thestock 25 as shown in Fig. 3 of the drawings.v A 4spring 425 thrusting at one ed against a butt plate 26 and at its opposite end against the nut forces the case 22 into place in the stock. The magazine 2| projects out at the rear end of the case 22 30 vandthrough the butt plate, and it is secured to the tube as by means of a bayonet lock 21 as shown in Fig. 3. The endvof the magazine 2| is formed with a knurled ngerpiece 28 by means of which it may be turned in the case to unlock it and permit its removal.' The ngerpiece is located in a recess 29 in the butt plate. A loading spring 30 extends inwardly into the magazine and supports a plunger 3I at' its front end, ,said

plunger being forced against a line of cartridges 32 contained inthe magazine. y l

The forward end'of the magazine terminates in a discharge tip 33 permanently secured within 'the inner end of the magazine in any suitable v -A cartridge retainer or cut-oil 35 is provided `at one end with a lip 34' extending into a hole 36 in the magazine to hold the said cut-oft from lengthwise movement, and at-that end opposite the lip 34 with a fork 31 to t .over a cartridge 50 shell in front of the flange thereon.: as shownv in Fig. 5. A spring band 38 is formed on the retainer to partially encircle and tightly grasp the tip 33 to secure the retainer in place.

The receiver I6 is of generallycylindrlcal shape 55 with a bore of two diameters therethrough, the rear end of the bore being closed by a screw plug 39. A breech bolt is tted for sliding movement within the receiver, said bolt having a stop shoulder 4I to engage a similar shoulder on the inside of the receiver as shown in Fig. 4. A notch 42 is formed at the end of the breech bolt to receive a guidelug 43 projecting from the rear end of the barrel I1. A groove 44 is cut into the bottom of the breech bolt, extending lengthwise therein for the reception of a firing pin slide 45 having ya firing pin 46 projecting from its end in position to strike a cartridge located in the firing chamber in the rear end of the barrel. A lug 41 extends laterally from the side of the firing pin slide to receive pressure of a firing pin spring 48 located in a bore 49 extending inwardly from the rear end of the breech bolt, as shown in Figs. 5 and 11. This spring normally retains the ring pin slide in a rearward position in the breech bolt so that the firing pin 46 in its normal position will be held from contact with a cartridge when the breech bolt is in its forward position.

A spring supporting rod 50 extends into a bore in the rear end of the breech bolt and has a head 5I seated against the bottom of said bore and against a shoulder 52 on the firing pin slide, a notch 53 extending inwardly from said shoulderI as shown in Fig. 4. A breech bolt closing spring 54 is supported by the rod 56 V'and thrusts with its rear end against the bottom of a recess 55 in the screw plug 39.

A hammer 56 is slidably mounted for reciprocating movement in the receiver and is urged forward for firing operation by a hammer spring 51 supported on a sleeve extension 58 from the screw plug 39, said spring thrusting at its rearward end against the end of the plug at the base of said sleeve and at its opposite end against the 40 bottom of a hole in the hammer into which the spring extends.

The hammer has a sear engaging notch 59 which in fact is a shoulder extending around the hammer to receive the pointed end of a sear 60 pivotally mounted in a screw threaded stud 6I secured in the receiver. The sear is biased into engagement with the hammer by a sear spring 62, as shown in Fig. 4. Said hammer has also a disconnector 63 in the form of an enlargement on the hammer to retain the sear in a disconnected position to belhereinafter described. A trigger 64 is pivotally mounted in a trigger supporting stud 65 secured in the under side of the receiver, said trigger being curved as at 66 around the magazine 2 I as shown in Fig. 10 of the drawings. A trigger spring 61 urges the trigger forward. A connector 68 is pivotally supported at one end by the trigger and its opposite pointed end is spring biased into engagement with a notch in the sear 60 as shown in Fig. 4, whereby backward pull upon the trigger 64 will effect disengagement of the sear from the hammer peri mitting the latter to. be forced forward by its spring into forcible contact with the projecting back end of the firing pin slide 45 shown in Fig. 4 of the drawings.

This slide 45 has a cartridge releasing notch 69 in its bottom edge to receive the cartridge retainer`35,as shown in Fig. 4, for the purpose of releasing the cartridges to permit their forward movement in the magazine tube under the impulse of the spring 30. A cooking handle 10 having a cooking pin 1| is insertable through a slot in the side of the receiver and in the breech bolt 46 and firing -pin slide 45, as shown in Figs.

5 and 12 of the drawings, this handle being yieldingly and removably held in place by a spring pressed plunger 12 as shown in dotted lines in Fig. 5 of the drawings.

In the operation of the firearm, assuming that the gun is unloaded and the parts are all in their normal positions of rest, the magazine tube 2l is removed by grasping the fingerpiece 28 and releasing it` from the bayonet lock, whereupon the tube is pulled out from the breech thereby leaving the loading case 22 `open and free to receive cartridges to its capacity, or to such extent as may be desired. The magazine tube is now inserted into the loading tube and pushed inwardly to its full extent and locked in place; During this inward movement of the tube 2| the cartridges will successively be entered into the front end of the tubeuntil the latter is locked in position whereupon the spring 30 will exert its force forwardly on the line of cartridges, the leading cartridge being in contact with the under surface of the breech bolt.

The cocking handle 19 may now be inserted into the breech bolt as shown in Fig. 12 and used to slide the breech bolt backwardly tocock the hammer, the breech bolt then being moved forwardly aided by the spring 54 into the position shown in Figure 4. During this forward movement of the breech bolt the firing pin slide will be held in its rearward position in the breech bolt so that it willnot come in contact with any cartridge that may be in firing position in the breech of the barrel.

As the breech bolt is moved forwardly the hammer will be heldin its backward or firing position by the sear 60. The gun is now in condition for firing and backward pull upon the trigger 64 will actuate the connector 68 to force the sear 60 from engagement with the hammer', and the latter will then be forced forwardly under the force of the hammer spring 51, striking the projecting rear end of the firing pin slide 45 and forcing the firing pin 46 against the cartridge thereby exploding the same. Under the forces of explosion the breech bolt will be blown back carrying with it the hammer which will be retained in its firing position by the sear 60, and the breech bolt will be forced forward by the spring 54 into firing position, the firing pin being prevented from contact with the cartridge in the breech of the barrel as hereinbefore described. As the breech bolt is moved back as just described, an extractor 13 will extract the cartridge shell from the breech of the barrel and move it into contact with an ejector 14 whereby the shell will be ejected through an opening 15 in the receiver in a well known manner.

During this rearward movement of the breech bolt carrying with it the ring pin slide the leading cartridge in the magazine tube and underlying the breech bolt will be uncovered and the pressure of the spring 30 will force the line of cartridges forward, the forward cartridge nosing up an incline 16 at the front end of' the tube and into contact with the guide lug 43 which will guide it into the breech in the barrel. The force of the spring 30 will be such that the cartridge is thrown into the chamberl in the rear end of the barrel as illustrated in Fig. 5. As the -ring pin slide 45 moves backwardly the sloping rear end of the notch 69 will press the forward end of the cartridge retainer downwardly so that the fork thereon will be in line with the rim of the cartridge shell, and as the line of cartridges are moved forward this fork engaging said rim will hold the cartridges in the position shown in Fig'.`

5. As the breech bolt and ring pin slide move forwardly as hereinbefore described the leading cartridge in the magazine will be pressed downhammer as it is-forced back'and prevent immediate forward movement thereof. This would result in a second and unintentional firing of the gun. To obviate this I have provided the disconnector 63 on the hammer which, as the hammer moves forward in the firing operation, engages the sear and forces it downward against the connector into the position shown invFig. '1 so that the point of the connector is below and forward of thev shoulder of the notch in the sear. If the 4 pressure upon the trigger is prolonged, as just referred to, the point of the connector 68 will. be retained during such pressure in this position, leaving the sear free to be forced upwardly by its spring into position to engage the hammer when it is forced backwardly by the movement of the breech bolt as hereinbefore described.'

After this operation and when pressure on the trigger is released the parts will resume the position shown in, Fig. 4 ready for another firing operation.

An important feature of the invention resides in an elevator for raising the rear end of the cartridges out of the pocket created by the incline 16 so that the axis of the cartridge will be substantially in line with the axis of the bore of the barrel. This elevator comprises shoulders 11 created by cutting slits in opposite sides of the tip and forcing said sides inwardly as shown 40j in Fig. 9.

In the loading operation when the cartridge is forced from the -pocket and from the position shown in Fig. 4, the rim of the cartridge shell engaging the elevating shoulders 11 is raised so that its axis is in line with the axis of the bore of the barrel and permits the cartridge to readily Venter said bore and into the position shown in of the case to compensate for slight variations in n construction and also to properly position the v forward end of the magazine for proper functioning of the loading and extracting mechanism, and the yielding feature provided'by the spring 25 is for the same purpose.

The trigger 64 has a slot out into its upper end to receive the end of the connector 68, the

pivot for the connector passing across the slot in` a manner well known in structures of this type.

I claim:

1. A firearm including a stock, a receiver mounted in the stock and having an opening therein, a barrel secured to the receiver, a hammer slidably mounted in said opening and having a sear notch, a sear in the form of a lever pivotally supported by the receiver and extending lengthwise thereunder, a trigger pivotally supported by the receiver, a connector in the form of a lever pivotally supported at one end by the trigger and extending under the sear for engagement with a sear notch in the latter, and a formation on the hammer to contact the sear and retain it from engagement with the connector after disengagement of the latter from the scar.`

2. A firearm including a stock, a receiver mounted in the stock and4 having an opening therein, a barrel securedto the receiver, a hammer slidably mounted in said opening and having a sear notch, a sear in the form of a lever pivotally supported by the receiver and extending lengthwise thereunder, a trigger pivotally supported by the receiver, a. connector in the form of a lever pivotally supported at one end by the trigger and extending forwardly underneath the sear for engagement with a sear notch in the latter, and a formation on the hammer to contact the Sear to impart added movement thereto after its disengagement from the connector.

3. A firearm including a stock, a receiver .mounted in the stock and having an opening therein, a barrel secured to the receiver, a hammer slidably mounted in said openingl and having a sear notch, a sear in the form `of a lever pivotally supported by the receiver and extending rearwardly lengthwise thereunder, a trigger piv-v otally supported by the receiver, a connector in the form of a`lever pivotally supported at one end by the trigger and projecting forwardly under the sear for engagement with a sear notch therein, and a formation on the hammer to contact the sear and force it into engagement with the connector to disengage the latter from said scar notch.

EUGENE G. REISING.

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