US1516972A - Automatic pistol - Google Patents

Description

Now. 25 1924' P. R. KRAMER AUTOMATIC PISTOL Filed y 19v 1923 4 Sheets-Sheet 1 INVENTQR P we' m f a (.M

ATTORNEY 1,516,972 F. R. KRAMER I AUTOMAT IC PI STOL Filed y 19. 1923 q'sheets-sheat. 2

P. R. KRAMER AUTOMATIC PISTOL 1923 4 Sheets-Sheet 3 INVENTOR ATRNEY Nmr. 25 1924- P. R. KRAMER AUTOMATIC PISTOL Filed y 19 1923 4 Sheets-Sheet 4 INVENTOR Patented Nov 25,

lI-IILLI? B; KRAMER, OF BAY GIT-Y, MICHIGAN.

AUTOMATIC PISTOL.

Applicationxfiled May 19, 1923.

To (4Z5 whom it may concern:

lie it known that I, PHILmr Karim-En, a citizen ofathc United States of America, and a resident of City, in the country of Bay and State of Michigan, have invented certain new and useful Improvements in Automatic Pistols, of which the following is a specification.

This inrention relates to automatic pistols and the like.

One objector" the invention is tox'desi'gn an improved automatic pistol in which/the barrel is rigidly attached to the frame or stock, thereby insuring steady andaccurate shooting.

Another object of the invent-ion is toproride an automatic iPlSt'Ol which can be quickly and easily cooked with but one hand.

A further object is to design a pistol in which the. shell magazrneor chamber .is 'located. near the handle, and is so, balanced that it can be readily carriedv in. a ho'lster without falling out.

A still further object is toproi-"ide an improved trigger actuating mechanism, :so that a shell cannot be discharged until-it is :properlay seated in. the barrel and the mechanism is in proper position.

A zturtl'ier object still isto provide a new and novel feed for forcing the cartridges 'lr the magazine into the barrel.

is i th, the above and; other objects in 'VlQW, the present "invention consists in the combination and arrangements of pain-s, hereafter more fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes may be made in the tliorm, size, proportion, and minor details of construction, witl'iout departing from the spirit, or sacrificingany of the ad-v vantages of the invention.

In the drawings:

Fig. -1. is a side View of my improved automatic pistol.

Fig. 2 is a part sectional side view thereof.

Fig. 3 is :a front View looking into the mouth of the barrel.

r 1g. 4 is a part sectional side View of the breech block.

Fig. 5 is an end View thereof.

Fig. 6 is a section taken on the line, 6-6 of Figure 5.

Serial No. 640,092.

.uig. '7 is a transverse Sectional View taken on the line 7+7 ot Fig. 2.

Fig. Sis a view ol the breech blockand shell ejecting :n'ieans turned at an angle, the mechanism being shown in two different positions.

Fig.10 is an end View 'lhereota Fig. 11 is an opposite end View.

Fig.1? is a section. taken on the line 12il=2 ofl igure 9;

Fig. l3 is. a side View of the screw which serves asza; screw driver tool.

Fig. 14 is an end View thereof.

is aside view of the trigger mechanism shown in two different positions viz, the full lines illustrating the trigger cooked, and dotted lines showing the position the mechanism assumes after firing.

Rig. 16 :is an isometric view of the timing member.

Fig. 17 is :also an isometric VlQW of the trip timing leven.

Fag. IS isa pairtvseotional: side View illustrating the means for limiting the anorement of the firingipin.

Automatic pistols ingeneral use today are so constructed that the barrel quickly becomes loose and Wiggly, consequently accurate shooting is impossible, is also necessary to first cook the weapon for the first shot, tlrisoperation. requires both hands, and it will be obvious that in an emergency and when the 'istolshould be ready for instant use, it must first be cooked which requires the useoaf both hands, otherwise it must be carried cocked which is a dangerous practice both to the owner and persons in the immediate vicinity.

These objectionable features I have overcome in my improved automatic pistol, and I have further designed it so that it will fitin and can be readily carried in the couventionafl holster witl-iout slipping out or falling therefrom.

Refiierring now pzn'ticularly to the drawings in which I have shown the prefer-red embodiment of my invention. The nu n-ieral 1 indicates the frame of the pistol which is provided with a cylindrical shell magazine 2 formed integral therewith. A hand stock 3 is detachably secured to. the frame by means of the screws- 4 and 5, the trigger and trigger actuating mechanism being mounted thereon in a manner to be presently described. A barrel 6 is threaded into the frame as shown and is provided with a sight 7 in the usual manner.

A cylindrical sleeve 8 is mounted in the frame and a breech block 9 is slidably mounted therein, this breech block being formed with downwardly projecting lugs 10 to which a recoil tension rod 11 is pivot-ally secured, the free end of the said rod being threaded, and is adapted to engage the threaded end of a telescoping sleeve nut 12, one end of which is in turn received within the hollow cylindrical member 13, the opposite end being provided with a large annular portion 14: which is fitted to the end of the shell magazine. A recoil spring 14 is carried on the rod 11 and is interposed between the ends thereof.

A spring actuated feed wing 15 is mounted on this rod 11, the end or hub 15 being turned to a smaller diameter, and a flat spring member 16 is wound thereon, the feed wing 15 normally lies against the breech block when the magazine is empty as clearly shown in Figure- 2, but when the shells 17 are inserted in the magazine, the wing is forced around to position as clearly shown in the Figure 7, tensioning the spring 16 which naturally has a tendency to exert a continuous pressure against the shell, forcing them upwardly and against the breech block which carries it into position in the barrel when the mechanism is actuated. A passage 18 is formed in the breech block and a firing pin 19 is slidably mounted thereon, a coiled spring 20 being wound on the pin and serves to normally retain the pin in proper position, a fiatted portion 21 being formed intermediate the length of the said firing pin, and a pin number 22 is adapted to be seated in a passage 23 formed in the breech block, the end thereof engaging said flatted portion and limiting the movement of the firing pin.

The underside of the end of the sleeve 8 is cut away as clearly shown at 24 and a lug or way 25 is positioned therein, a finger 26 projects from the central portion thereof, and serves to regulate the shells extracted from and fed into the firing chamber in the barrel.

The breech block 9 is formed as clearly shown in Figure of the drawings, the one end 9 being recessed to receive the head of the shell, a shell extractor 27 being pivoted thereto by means of pin 28, while a coiled spring 29 serves to tension and hold the extractor in proper position, and the free end of the shell extractor is formed with a jaw which engages the turned end of the cartridge. A groove 9 is formed in the breech block to accommodate the member 25 which is tapered for a distance as shown at 25 said taper terminating in an abrupt shoulder 25, consequently when shell is in place in the barrel, the aw will engage the turned edge thereof, and when the shell is discharged, the recoil forces the breech block rearwa-rdly, compressing the spring 146 the discharged shell will simultaneously move with the breech block due to the engagement of the shell extractor 27, and as the end of the shell strikes the edge of the tapered way, it will be tilted as clearly shown in the dotted lines in Figure 8, and continued movement causes it to strike the shoulder 25", throwing or discharging the empty shell from the chamber, and when the breech block has reached the end of the stroke, and the empty shell is extracted, the feed wing forces the next load ed shell into the sleeve, the position of the finger t} preventing the movements until such time the empty is discharged wiien the return of the breech block forces it into the firing chamber, this finger 26 regulates the shells fed into the sleeve and prevents jams, etc.

An opening 30 is provided in the frame to admit of the discharge of the empty shells, this opening being partially closed by means of a door 31, pivoted to the wall by means of a pin 32 and locked in position by a conventional spring actuated latch 33.

I wish to direct particular attention to the threaded screw member 4: which is formed similar to a screw driver, the screw 5 having a slotted head adapted to fit the end of the screw 1, while the head of the screw 4: is large and knurled, so that it can readily be manipulated by hand, conse quently no tools are required to disassemble the pistol. Vents 84 are also provided in the firing chamber to relieve it of gases, etc.

The trigger mechanism comprises a hammer 35 set into a slotted aperture formed in the hand stock 3, and is mounted on a sleeve 36 through which the screw 4t extends, a bifurcated pin member 37 being pivotally connected to the hammer by means of the pin member 38, the free end of the pin 37 extending through an opening provided in the lug which is formed inte ral with the hand stock. A coiled spring member L0 is interposed between the lug 39 and the bifurcated end of the pin 37. The ban mer is formed as clearly shown in Fig, 15, having a contact point which is adapted to strike the end of the firing pin, and ratchet teeth 35" which are adapted to be engaged by the trip dog member 41 for holding the hammer in cocked position.

The hand stock is formed with a l'orwardly extending portion as shown, and grips 42 are provided and held in position by the screw 42 and the head of this screw is formed to allow it to be manipulated by the member 4:.

A forked trip timing lever as is pivoted to the forwardly extending stock portion at the point it which is slotted to receive it, the free end of said member lying in close proximity to the trip .iinember which is pivotal. connected to the trigger 46. The trigger is in turn pivoted "to the hand stock by means of the pin i7. The pin48 is pivotally connected to the trip dog 4-1, the free end being formed with ball joint adapted to be seated in a socket formed in the said trigger member, and a coiled spring 49 is intcr 'iosed between the said trip dog and the trigger. The member 15 is provided with shouidcr intermediate its length which is adapted to be engaged by the lower end of the trip dog. and when the hammer is in position as shown by full lines in 1-5, and the trig er is actuated, it will force the member rearwardly, which in turn rocks the trip dog on its pivot, and causes it to disengage from and release the hammer, a coiled spring 51 serves to hold the member up in proper position for engagement by the trip dog, and the Spring 49 serves to force the upper end of the trip dog against the hami-ner and also forces the trigger back to original position.

it will be noted that the member 43 extends above the face of the hand stock. and as the breech block is forced rearwardly by the recoil, the lugs 10 will force the member i5 downwardly, disengaging the trip dog so that any pull on the trigger will be ineffective, until such time as the breech block has returned to its normal position, consequently, the pistol cannot be prematurely discharged as the breech block must be in proper position before the hammer can be released.

A. safety catch 52 is pivotally connected to the hand stock at the point 53, the upper end being formed with a jaw which is adapted to engage the lugs 10 of the breech block for holding it in position to allow for cl ninc, etc... the other end of this catch is olfset to form a thumb rest for the proper manipulation of :the catch.

From the foregoing description it will be obvious that I have perfected a new and novel automatic pistol which is rigidly constructed to admit of accurate shooting. which can be cocked without the use of both hands, and which cannot be prematurely dis charged.

hat I claim 1s:- 1. An automatic pistol comprising a in the frame, recoil actuated breech block having a recoil tension rod pivot/ally conec ted thereto, a spring tensioned feed wing loosely mounted on said rod and adapted to force the shell into the firing chamber when the breech block is actuated by the recoil.

8. An automatic pistol comprising a frame and a barrel threaded thereinto, a firing chamber, a sleeve in the frame, arecoil actuated breecl block slidably mounted therein, a recoil tension rod pivotally connected thereto, and a spring tensioned feed wingloosely mounted on the said rod and adapted when the breech block is actuated to force a shell into the said sleeve.

l. An automatic pistol comprising a frame having a shell magazine formed integiral therewith, a barrel threaded into said frame, a chamber. a sl eve, anda recoil actuated breech block slidably mount-- ed the-rein, spring tensioned feed wing in the shell magazine and adapted when the breech block is actuated to force a shell into the sleeve. and means on the breech block for engaging the end of the shell.

5. An automatic pistol comprising); frame having a longitudinal bore, a shell magazine formed integral therewith, a barrel threaded. into said frame and in ali-nement with said bore, a sleeve in the frame. and a recoil actuated breech block for feed ing the shells to the firing chamber, and means on the sleeve adapted to engage the end of the discharged shell for ejecting; it from the pistol.

6. An automatic pistol comprising a frame havingga shell magazine formed in tegral therewith, a barrel threaded into said frame, a sleeve, a recoil actuated breech block slidablv mounted in said sleeve. a recoil tension rod connected thereto and a spring tensioned feed wing loosely mounted thereon. a shell. extractor on the block adapted to engage the end of the shell, and a tapered lug in the sleeve adapted to tilt and eject the discharged shell "when the breech block is actuated by the recoil movement.

7 An automatic pistol comprising frame lnlvinc' a shell magazine formed integral therewith, a gate opening into said chamber, a sleeve, a recoil actuated breech block slidably mounted therein and a recoil tension rod connected thereto av spring actuated feed wing; loosely mounted on said rod, shell engaging means on the breech block, and means on the sleeve for ejecting the shell as it moves with the breech block during the recoil movement.

8. An automatic pistol comprising a frame having a barrel detachably secured thereto, a shell magazine formed integral therewith and a latched gated opening thereinto. a sleeve, a recoil actuated breech block slidably mounted therein, a feed wing. and means on the breech block adapted to engage the shell, a firing pin slidably mounted in the block, and means on the sleeve for ejecting the shell when the breech block is actuated by recoil movement.

9. An automatic pistol comprising a frame, a barrel attached thereto and provided with a longitudinal bore, a sleeve, :1 recoil actuated breech block slidably mounted therein, a recoil tension rod connected thereto and a spring actuated feed wing loosely mounted thereon, a firing pin in the said block and means for limiting the movement thereof, a spring actuated jaw on the end. of the breech block adapted to engage the shell, and an inclined lug terminating in an abrupt shoulder for ejecting the shell when the breech block is actuated by recoil movement.

10.2111 automatic pistol comprising a frame, a hand stock detachably secured thereto, a sleeve, and a recoil actuated breech block slidably mounted therein, a firing pin in the breech block, a trigger, a trip lever pivotally secured thereto and a trip timing lever pivoted to the said frame and formed with a forked end adapted to engage the said trip when actuated by the breech block during the recoil movement.

11.. An automatic pistol comprising a frame having a shell chamber formed integral therewith, a spring actuated hammer, a spring actuated trip dog pivoted to the frame for holding said hammer in cocked position, a trigger, a trip lever secured thereto and engaged by said trip dog, a trip timing lever, having a downwardly bent forked end and a recoil actuated breech block adapted to engage said trip timing lever to release said trip dog during the recoil movement of the breech block.

12. An automatic pistol comprising a frame having a shell chamber formed integral therewith, a spring actuated hammer, a trip dog having a pin pivotally connected thereto, the free end of which is loosely seated in the trigger, a spring mounted thereon for holding said hammer in cocked position, a trigger, a trip lever secured there to and engaged by said trip dog, a trip timing lever pivoted to the frame and formed with a forked downwardly bent free end adapted to straddle said pin, and a recoil actuated breech block adapted to engage said trip timing lever to release said trip dog during the recoil movement of the breech block.

13. An automatic pistol comprising a frame having a hand stock secured thereto, a spring actuated hammer mounted thereon, a trip dog lever pivoted to the frame and a pin pivotally connected thereto, the free end being provided with a hall adapted to be seated in a pocket formed in the trigger, a spring mounted thereon for holding said hammer in cocked position, a trigger, a spring tensioned trip lever pivotally secured thereto, a forked trip timing lever above said trip lever, resilient means for holding said trigger in proper position, and a recoil actuated breech block having downwardly projecting lugs adapted to actuate said trip timing lever to disengage the trip lever during the recoil movement of the breech block.

1%. an automatic pistol comprising a frame having a shell magazine formed integral therewith a barrel threaded into the frame, a firing chamber, gas relief passages opening thereinto, a sleeve, and a recoil actuated breech block slidably mounted therein, and a feed wing mounted in the shell magazine.

15. An automatic pistol comprising a frame, having a shell magazine formed integral therewith, a telescoping sleeve nut fitted to the end of said chamber, a breech block and a rod connected thereto and adapted to engage the end of the sleeve nut and a recoil spring mounted on the said rod.

In testimony whereof I aflix my sign aturc.

PHILLIP R. KRAMER.

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