US1082201A - Firearm. - Google Patents

Description

FIEEARM.

. APYLIOATION FILED NOV. 13, 1912. Patented Dec' 23 s. KORDVINE.

FIREARM. APPLICATION `IILIEID NOV. 13| 1912.

1 ,082,201. Patented Dec. 23, 1913.

5 SHEETS-SHEET 2.

S. KOROVINE.

FIREARM.

ABPLIGATION FILED Nov. 1s', 1912.

` 1,082,201. Patented De0.23,1 913.

5 SHEETS-SHEET a.

coLuMmA PLANOURAPH ca.,wAsruNu'roN. D. c`

S. KOROVINB.

FIREARM.

APPLICATION FILED NOV. 13l 1912.

Patented Dec. 23, 1913.

5 SHEET S-SHEET 4.

@Eig

coLumslA PMNQGRAPII WASHINGTON. n. c.

S. KOROVINE.

FIREARM.

APPLIGATIGN FILED Nov. 13, 1912.

Patented Dec. 23, 1913.

6 SHEETS-SHEET 5.

Anuman PLANOGRAPH co.. WASHINGTON. D. c.

UNITED STATES PATENT OFFTC.

SERGE KOROVINE, OF LIEGE, BELGIUM.

FIREARM.

To all w71 om z' may concern:

Be it known that I, SERGE KoRovrNn, a subjectv of the Czar of the Russians, residing at 7 Rue Grandgaguage, Liege, Belgium, have invented certain new and useful Improvements in Firearms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to an automatic pistol or like firearm having a setting trigger enabling it to be cocked by pressing the trigger Without drawing back the bolt.

The present invention is more particularly described with reference to the accompanying drawings, in which Figure 1 shows the position of the parts of the lock when at rest; Fig. 2 shows the parts when the hammer is in the extreme right hand position and cocked by pressure on the trigger; Fig. 3 shows the parts of the lock at the moment of firing; Fig. 4 shows the positions of the parts of the loc-k when the bolt is thrown back toward the rear and the trigger occupies its extreme right hand position, the hammer being retracted to its fullest extent; Fig. 5 illust-rates the positions of the parts of the lock the hammer being cocked by the bolt thrown backward after the firing of the weapon; Fig. 6 illustrates the position of the parts of the mechanism a little before uncocking, when the nose of the trigger rests on the nose of the sear; Fig. 7 gives a general view of the pistol body with the mechanism at the moment of uncocking after having been cocked by hand by retraction of the bolt, the trigger not having been pressed; Figs. 8 and 9 represent a second form of construction corresponding respectively to Figs. 1 and 6; Fig. 10 shows a means for retaining the trigger in a certain position toward the rear, distinct from that which has just been shown; Fig. 11 represents another means of retaining the trigger in a certain position toward the rear; Fig. 12 shows a general view of the part of the body and the bolt which carries the safety device; Fig. 13 shows a corresponding part of the body; Fig. 14 shows a horizontal section of the bolt with the parts of the safety mechanism and with the Specification of Letters Patent.

Application filed November 13, 1912.

Patented Dec. 23, 1913.

Serial No. 731,121.

hammer lowered; Fig. 15 is a partial vertical section of Fig. 14 on the line A-B with the same arrangement of the parts of the mechanism; Fig. 16 is a similar horizontal section of the bolt and the positions of the parts of y the mechanism when the hammer is cocked; Fig. 17 is a view in perspective of the safety lever; Fig. 18 is a horizontal section of the bolt of the pistol, the hammer cocked and the safety lever locked; Fig. 19 is a horizontal section of the bolt of the pistol, the safety lever, and the hammer the latter lowered. The weapon is in the safety position; Fig. 2O is a partial vertical section on the line C-D of Fig. 19; Fig. 21 shows the application of the safety device to the bolt which is surrounded by the mass of the frame; Fig. 22 is a partial section of the pistol mounted without the lock or cover plate; Fig. 23 is a transverse section on the line A-B of Fig. 22; Fig. 24 is a plan view of the body; Fig. 25 is a view of the pistol when the bolt is open after tiring the last cartridge in the magazine; Fig. 26 is a view of the pistol from the front end; Fig. 27 shows the barrel provided with its special spring; Figs. 28 and 29 are two transverse sections of the barrel on C-D and E--F of Fig. 27.

A sear 7 connected with the hammer 1 by a link 5 pivots on a pin 8 ixed at the left of the magazine 9 in the frame 3 (Fig. 1). The sear spring 12 arranged in a recess in the butt to the left of and parallel with the magazine, acts indirectly by means of a piston 13 on a strut 10 hinged at 11 on the sear 7. The force of the spring 12 is transmitted through the sear 7 to the hammer 1 to force the latter toward the firing pin 32 (Fig. 1). A small lever 14 under the action of a leaf spring 15 pivots on a pin fixed to the upper part of the sear 7, and when the hammer is cocked (Fig. 4) bears against a shoulder 16 fixed to the frame or body of the pistol and holds the hammer in the cocked position. The sear 7 has a projection 25 which comes in contact with an arm 21 mounted on a pin 20 on the trigger and controlled by a spring when the trigger is pressed for cocking and uncocking the hammer and firing the shot (Fig. 1). The lower part of the sear 7 is connected with the link 5 by a lug 6 on which is pivoted a lever 2 forced outwardly by a spring 2 arranged in a corresponding recess in the body.

of the sear 7 (Fig. 1). The lever 2 thus forms a kind of movable abutment for the sear 7 in such a way that the sear 7, the movable abutment 2, the part 14 and the shoulder 16 combine to maintain the trigger pressed in a certain position toward the rear when the hammer is cocked (Fig. 6).

The trigger 19 (Figs. 1 and 2) pivots 0n an axis 18 fixed to the frame and it is terminated at its upper part above its axis of r0- tation by a finger 17 on which a spring 17 acts always thrusting the trigger forward. Beneath the axis of rotation 18 the trigger has an arm 21 having two project-ions, one of which 23, when the trigger is pressed, engages the movable piece 14 (Figs. 2 and 6) of the sear 7, in order to uncock the hammer, while the other 24 comes in contact with the projection 25 of the sear 7 in order to cock and uncock the hammer as already stated (Figs. 1 and 2).

The trigger has a catch 4 by means of which it is held in a certain position by the projection 2 of the sear 7 when the latter and the hammer are cocked. A catch 16 is fixed on the pin 18 about which the trigger pivots and its right hand extremity forms a shoulder 16 against which the movable piece 14 is pressed when the sear 7 and the hammer are cocked (Fig. 5). The left hand end of the catch 16 has a semicylindrical recess intended to engage a pin 18 (Figs. 1 and 2) fixed to the body of the pistol, in order to prevent the catch 16 from pivoting on its axis and for simplifying the putting together and taking apart of the weapon. Vith this same obj ect the trigger 19 and the catch 16 must be mounted on the body of the pistol after having been previously assembled. For this purpose the two parts 19 and 16 are fitted on the same small cylindrical tube 18 (Figs. 1 and 3), inside which an axis 18 fixed in the body is inserted. The spring 17, the end of which acts by means of a piston on the linger 17 of the trigger, is placed in a cylindrical recess in the body of the pistol, while the left hand end of the spring rests against the cylinder 22 which is held there by a screw 22 which fixes at the same time the flat spring 15 of the part 14.

The action of the weapon is as follows: )When the trigger 19 (Figs. 1 and 2) is pressed, the projection 24 of the arm 21 comes in contact with the no-se 25 of the scar 7 and further pressure on the trigger causes the sear 7 to turn on its pivot which movement affects all the parts dependent on it, such as the finger 17, the link 5, the hammer 1 and so forth. The sear 7 pivots until contact with the trigger is broken. Then under the action of the spring 12 it resumes its original position. At this moment the trigger occupies its extreme right hand position (Fig. 3). Then the sear 7 returns, the hammer 1 having struck the firing pin (Fig. 3) causes the firing of the weapon. The bolt thrown backward (Fig. 4) cocks the hammer and turns the sear in such a way that the arm 14 leaves the catch 16, slips along the projection 23 of the part 21 which has been raised by the pressure exerted on the trigger and under the action of its spring 15 is lowered in order to bring it opposite the catch 16 (Fig. 4). l/Vhen the bolt 26 commences its return movement (under the action of a recoil spring not shown), the hammer 1 and the parts connected therewith are also displaced toward the left untill the part 14 abuts against the catch 16 (Fig. 5) causing the nose 23 of the part 21 to enter a recess in the latter. Thus the hammer may be cocked in any position of the trigger. The nose 2 comes beneath the corresponding projection 4 of the trigger and the strut 10 compresses the spring 12. 1t has been hereinbefore stated that up to the moment of firing, the trigger occupies the extreme rear position, but it is well known that in automatic firearms the recoil of the bolt cocks the hammer in less time than is necessary for the person firing to release the trigger after having fired a shot. The various parts of the mechanism will thus occupy after each discharge the position shown in Fig. 5, that is to say the nose of the trigger will be above the nose 2 of the scar. If then the person firing releases the trigger (Figs. 5, 6) it is thrown by the action of its spring 17 toward its original position, but in returning the nose 4 bears on the nose 2. In this position of the trigger 19 the projection 23 of the arm 21 is precisely beneath the movable piece 14 resting againstI the catch 16 (Fig. 6). It then suflices to exert a short pressure on the trigger in order that the arm 21 may lift the movable piece 14 and remove it from the support 16 and consequently uncock the hammer and fire the shot. The trigger again occupies its extreme rear position, and is held there until the person firing liberates it when the hammer is cocked by the recoil of the bolt .(Fig. 5). Consequently if the trigger is released it resumes the posit-ion shown in Fig. 6. 1f for any reason there is a miss fire, the trigger must be released, which being no longer retained by the nose 2 will resume its original position and then must be immediately pressed again, the hammer is thus again cocked and lowered so as to fire with the same cartridge. The various operations are thus produced until there is a miss fire when it is necessary to remove from the barrel the defective cartridge by drawing back the bolt by hand. Two cases may then present themselves:

1. Before drawing back the bolt by hand, that is to say before cocking the hammer and during this operation, the person firing exerts a pressure on the trigger holding it still in its extreme rear position. rlhe different parts of the mechanism then occupy the same positions as if the bolt had been thrown backby the recoil (Fig. 5), that is to say the trigger when released rests its nose 4: against the raised projection 2 of the sear 7 (Fig. 6).

2. The person ring, drawing back the bolt by hand, does not exert any pressure on the trigger and therefore when the latter, after the hammer is cocked, occupies its original position (Fig. 1) and the projec tion 4 is not above the nose 2 of the seai- 7, then in order to fire the shot the trigger must be pressed and the nose 2 having encountered the projection d pushes the latter into a recess in the sear 7 (Fig. 7), and consequently enab-les the trigger to reach its extreme rear position which is necessary for eecting the succeeding uncocking of the hammer.

The second form of construction of theV invention proposed, shown in Figs. 8 and 9, only differs from the one just described, in the construction of the catch 2:L (Figs. 7, 8 and 9) which serves to maintain the trigger 19 in a certain rear position when the hammer is cocked, which catch is not placed on the sear 7 as in the first form of construct-ion, but directly on the body 8. This catch 2a which pivots on the pin 6a is composed of two parts, the upper one of which pivots at 6a and can undergo a slight inclination independently of the lower part. The latter is subjected in its upper part to the action of a spring 2a which presses it as a whole to the right of the trigger 19. As Fig. 9 shows, when the hammer is cocked (the latter is not shown), the lower part of the sear 7 which is subject to a movement of rotation, presses the catch 2a, which causes the whole catch to rotate slightly toward the left about its axis 6a. The trigger 19 is then released and is drawn by its spring, toward its original position, but its projection 4; having met the catch 2a it is stopped in a position in which it best suffices to exert a slight pressure upon it, in order to fire the shot. In the particular case in the first form of construction corresponding to the case shown in Fig. 7, the hammer being cocked by the bolt drawn back by hand, and the trigger not being pressed, it occupies its extreme front position. 1f in order to fire the shot, the trigger be pressed, the latter at one moment of its course will bear with its projection t against the support lever 2a. By a pressure exerted on the upper movable part of this lever 2a, the trigger 19 turns it a little to the -right and in this way it can continue its course to the extreme rear position which it must necessarily reach in order to uncock the hammer.

Fig. 10 shows a modification for maintaining the trigger in a certain position toward the rear. The action is similar to that of the first form of construction. A lever 2B the lower part of which is connected by a link 10, with the main spring 12, pivots at 6 on the hammer 1. This spring 12 draws this lever 2B toward the trigger and thus draws the hammer toward the striker.

Fig. 11 shows a second modification for maintaining the trigger in a certain position toward the rear relating to the second form of construction. As in Figs. 8 and 9 the lever 2c is arranged on the body of the pistol and when the hammer is cocked (the mechanism intended for retaining the hammer cocked is not shown), this latter acts in this case directly on the lever 2c pressing it t0- ward the trigger, so that the latter bears at a given moment against the upper part of this lever 2c. The rest of the action of this mechanism is the same as in the other forms of construction.

It has been stated that the lock proposed allows the hammer to pass from the cocked position to that of the lowered position, and at the same time to that in which the weapon is in the safety position. In a recess in the bolt 26 a lever 28 provided with a catch 29 is pivoted by a pin 27 and is always thrust outward by a spring 80 lodged in the bolt. The lever 28 has externally a lug 81 facilitating its handling. The lever 28 is mounted in communication with the firing pin 82 which is normally thrust by its spring toward the right. Opposite the catch on the lever 28 the firing pin is cut away so as to form a shoulder 88. r1`he working of this safety device is very simple. 1t will be seen in Fig. 16 that when the hammer is cocked, the firing pin 82 occupies an extreme right hand position and the notched part of the latter is opposite the catch 29 of the lever 28. If the lug 81 of the lever 28 be pressed, the catch 29 enters the notch in the striker and places itself in front of the shoulder 88 (Fig. 18). By continuing the pressure on the lever, while the hammer is lowered against the firing pin, the latter will be pushed toward the left and will stop when the shoulder 88 bears against the catch 29 of the lever 28 (Figs. 19 and 20). 1f the lever be no longer pressed inwardly, it will retain its position in the notch of the firing pin, because the pressure of the hammer on the striker is much greater than the sum of the pressures of the firing pin spring and the spring 8O of the lever 28. 1n this position of the firing pin the pistol is safely locked.

The bolt itself is brought into the safety position simultaneously with the striker. In fact when the lever 28 is pressed, the lower part of the lug 81 enters a corresponding recess 84 in the groove in the pistol body (Figs. 14, 15, etc.,) and if an endeavor were made to cause the bolt to recoil the right hand and lower part of the said lug 81 would bear against the right hand face of v lll the recess 34, which would thereby prevent the recoil or drawing back of the bolt. The hook 29 of the lever 28 and the abutment 8S of the striker 82 have their contact faces inclined or beveled, so that a very slight pressure on the lever 28 when the hammer is released will be suflicient to force this lever to enter the notch in the firing pin under the reciprocal action of the inclined surfaces. Assuming the pistol is in the safety position, in order to commence firing, it sufiices to press the trigger. The effect of this pressure is to cock the hammer and thus to bring the firing pin toward the rear. rithe catch 29 of the safety lever being no longer subjected to the pressure of the firing pin, is thrown outward by the spring 30 and thus allows the bolt to recoil after the weapon has been fired.

In firearms having invisible hammers, it is always important` to know whether or not the hammer is cocked. The position of the hammer can easily be ascertained from the position of the lever 28. In fact if the hammer is cocked, the striker under the action of its spring is drawn back toward the rear, so that its notched face is opposite the catch 29 of the lever' 28. If the lug of the lever be then pressed, it enters the notch (Fig. 18) and the hammer is cocked. If on the contrary the hammer is lowered, the lug resists any pressure exerted on it, because it is in Contact with a solid part of the striker (Fig. 14). Hence if the lug does not appear on the outside it is because it is retained by the striker' encountered by the hammer, and the weapon is in the safety position (Figs. 19, Q0 and 2l). At its front part t-he barrel is provided with ribs 36 (Figs. 2Q, 23 and 27) adapted to enter corresponding grooves 8G in the frame 3. The mounting of the barrel is effected by inserting it from right to left, after the bolt with its spring has been fitted on the body and drawn a little toward the rear.

The barrel is provided at the rear with a tenon 87 having` a hole 38 (Figs. 22, 27) coinciding, when the barrel is in place, with a hole 88 in the body 3. These apertures 38 and 38 are traversed by a pin 39 so as to fasten the barrel. This pin 39 has a lever -l-O which can pivot on it and serves for maintaining the bolt open after the last cartridge of the magazine has been fired (Figs. Q2 and 25). The lever 40 and its pin Si) are under the action of the feeder 4l of the magazine 9, so that when the lever 40 is pushed upward by the feeder 4l, its upper end enters a corresponding notch 42 of the bolt 2G and locks it.

Practice has Vshown that in pistols having removable barrels, the wear of the material and an inexact fitting are the cause after a certain time of vibrations of the barrel. In order to overcome this drawback, in the artion, the barrel 35 is constantly pressed toward the body by a spring 43 fixed beneath the barrel (Fig. Q7), or, as shown in Fig. 22, a cam 44 pivoted at 45 to the body presses the barrel against the latter. A spring 4G by the intermediary of the head 47 of the rod 48 acts on the lever 44 pressing it upward so as to produce a certain pressure on the barrel. For taking the weapon apart the lever 40 must be removed, and the bolt drawn back a little, which will then enable the barrel to slide backward. T he bolt 48 and its spring 46 are then taken out.

I declare that what I claim is l. A firearm comprising in combination a body, a barrel, a trigger, a sear, a hammer, means for transmitting the movement of the sear to the hammer, means for holding the sear in the cocked position, means for holding the trigger in the drawn back position and means carried by the trigger for cocking and uncocking successively the said scar and hammer.

Q. A firearm comprising in combination a body, a barrel, a trigger, a sear, a sear spring, means for transmitting movement from said trigger to said hammer, a lever, a spring acting on said lever, a member for retaining the parts in the cocked position, an abutment on said member adapted to engage said pivoted lever, and means carried by the trigger for cooking and uncocking successively said sear and hammer.

3. An automatic firearm comprising in combination a body, a barrel, a trigger, a hammer, a scar, a scar spring, a link connecting said sear with the hammer, a lever operating on said sear to keep it cocked, a spring Operating said lever, means for holding the trigger in the drawn-back position, and means carried by the trigger for cooking and uncocking successively the said sear and hammer.

4. An automatic firearm consisting of a body, a barrel, a firing pin, a hammer, a trigger, a sear, means connecting said sear and said hammer, a catch on said trigger, a projection on the said sear coperating with said catch, a fixed catch on the body, and an arm 0n said sear coperating with said fixed catch.

5. An automatic firearm consisting of a body, a barrel, a firing pin, a hammer, a trigger, a sear, a member pivoted to said sear, a spring inclosed in a recess in said sear normally pressing said member away from said sear, a link connecting said scar with the hammer, a catch on said trigger adapted to cooperate with said member, a second catch on said trigger, a projection on said sea-r cooperating with said second catch, a fixed catch on the body, an arm on said sear c0- operating with said fixed catch, a spring controlling said sear, and a spring controlling said trigger.

6. An automatic firearm consisting of a body, a barrel, a firing pin, a hammer, a trigger', a sear, a member pivoted to said sear, a spring inclosed in a recess in said sear normally pressing said member away from said sear, a. catch on said member, a link connecting said sear with the hammer, a catch on said trigger cooperating with the catch on the member pivoted to the sear, a second catch on said trigger, a projection on said sear cooperating with said second catch on the trigger, a fixed catch on said body, an arm on said sear, a spring on the said arm, a spring controlling the said sear, and a spring normally forcing said trigger into the undrawn position.

7. An automatic firearm consisting of a body, a barrel, a firing pin, a hammer, a trigger, a sear, a member pivoted to said sear, a spring inclosed in a recess in said sear normally pressing` said member away from said sear, a catch on said member, a link connecting said sear with the hammer, a catch on said trigger cooperating with the catch on the member pivoted to the sear, a pivoted catch on the said trigger, a projection on the said sear cooperating with said pivoted catch on the trigger, a spring forcing said catch members normally away from said trigger, a fixed catch on the body, a pivoted arm on said sear, a spring tending to force said arm against said catch on the body, a spring controlling said sear and a spring controlling said trigger normally tending to force it into the undrawn position.

8. An automat-ic firearm consisting of a body, a barrel, a firing pin, a hammer, a trigger, a sear, a member pivoted to said sear, a spring inclosed in a recess in said sear normally pressing said member away from said sear, a catch on said member, a link connectingl said sear with the hammer, a catch on said trigger cooperating with the catch on the member pivoted to the sear, a pivoted catch on the said trigger, a projection on the said sear cooperating with said pivoted catch on the trigger, a spring forcing said catch members normally away from said trigger, a fixed catch on the body, a pivoted arm on said sear, a spring tending to force said arm against said catch on the body, a piston in a recess on said body, a spring forcing said piston outward into contact with the trigger to normally thrust 1t into the undrawn position, a plug in said recess against which the spring abuts, a screw serving to secure said plug and also said spring operating the pivoted lever on the sear, a second piston in a recess in the base of the body adjacent to the magazine, a spring forcing said piston normally outward, and a lever pivoted to the sear and operated by said piston.

9. An automatic firearm consisting of a body, a barrel, a firing pin, an abutment on said firing pin, a pivoted lever on the breech block adjacent to said firing pin, a catch on said lever cooperating with said abutment on said firing pin, a cam on said lever cooperating with the body of the firearm, a spring normally forcing said lever away from said barrel, a hammer, a trigger, a sear, means connecting said sear and said hammer, a catch on said trigger, a projection on the said sear cooperating with said catch, a fixed catch on the body, and an arm on said sear cooperating with said fixed catch.

lO. An automatic firearm consisting of a body, a barrel, a firing pin, an abutment on said firing pin, a pivoted lever on the breech block adjacent to said firing pin, a catch on said lever cooperating with said abutment on said firing pin, a cam on said lever cooperating with the body of the firearm, a spring normally forcing said lever away from said barrel, a. hammer, a trigger, a sear, means connecting said sear and said hammer, a catch on said trigger, a projection on the said sear cooperating with said catch, a fixed catch on the body, an arm on said sear cooperating with said fixed catch, a spring on the said arm, a spring controlling said said sear and a spring normally forcing said trigger into the undrawn position.

l1. An automatic lirearm consisting of a body, a barrel, a firing pin, an abutment on said firing pin, a pivoted lever on the breech block adjacent to said firing pin, a catch on said lever cooperating with said abutment on said firing pin, a lug on said lever cooperating with the body of the firearm, a spring normally forcing said lever away from said breech block, a hammer, a trigger, a sear, a member pivoted to said sear, a spring inclosed in a recess in said sear normally pressing said member away from said sear, a catch on said member, a link connecting said sear with the hammer, a catch on said trigger cooperating with the catch on the member pivoted to the sear, a pivoted catch on the said trigger, a projection on the said sear cooperating with said second catch on the trigger, a spring forcing said catch member normally away from said trigger, a fixed catch on the body, a pivoted arm on said sear, a spring tending to force said arm against said catch on the body, a piston in a recess in said body, a spring forcing said piston outward into contact with the trigger to normally thrust it into the undrawn position, a plug in said recess against which the spring abuts, a screw serving to secure said plug and also said spring operating the pivoted arm on the sear, a second piston in a recess in the base of the body, a spring forcing said piston normally outward and a strut pivoted to the sear and operated by said piston.

12. An automatic firearm consisting of a body, a barrel, a spring on said barrel foreing it away from said body to -compensate for wear, a firing pin, a hammer, a trigge r, a sear, means connecting said sear and said hammer, a catch on said trigger, a projection on the said sear cooperating with said catch, a fixed catch on the body, and an arm on said scar cooperating with said fixed catch.

13. An automatic firearm consisting of a body, a barrel, a cam on said body, a spring forcing said cam against said barrel to compensate for wear, a firing pin, a hammer, a trigger, a sear, means connecting said sear and said hammer, a catch on said trigger, a projection on the said sear cooperating with said catch, a fixed catch on the body, and an arm on said sear cooperating with said fixed catch.

14. An automatic firearm consisting of a body, a barrel, a4 cam pivoted to said body, a rod mounted on said body, a spring forcing said rod against said cam to press the latter against the barrel to force it away from the body, a firing pin, a hammer, a trigger, a sear, means connecting said sear and said hammer, a catch on said trigger, a projection on the said sear coperating with said catch, a fixed catch on the body, and an arm on said sear cooperating with said fixed catch.

15. An automatic firearm consisting of a body, a barrel, a cam pivoted to said body, a rod mounted on said body, a spring forcing said rod against said cam to press 4the latter against the barrel to force it away from the body, a firing pin, a hammer, a trigger, a sear, a member pivoted to said Sear, a spring inclosed in a recess in said Sear normally pressing said member away from said scar, a catch on said member, a link connecting said sear with the hammer, a catch on said trigger cooperating with the catch on the member pivoted to t e sear, a

second catch on said trigger, a projection on said sear coperating with said second catch on the trigger, a fixed catch on said body, an arm on said sear, a spring on the said arm, a spring controlling the said sear, and a spring normally forcing said trigger into the undrawn position.

1G. An automatic firearm consisting of a body, a barrel, a cam pivoted to said body, a rod mounted on said body, aspring forcing said rod against said cam to press the latter against the barrel to force it away from the body, a firing pin, a hammer, a trigger, a sear, a member pivoted to said sear, a spring inclosed in a recess in said sear normally pressing said member away from said sear, a catch on said member, a link connecting said sear with the hammer, a catch on said trigger coperating with the cat/ch on the member pivoted to the scar, a pivoted catch on the said trigger, a projection on the said sear cooperating with said second catch on the trigger, a spring forcing said catch member normally away from said trigger, a fixed catch on the body, a pivoted arm on said sear, a spring tending to force said arm against said catch on the body, a piston in a recess in said body, a spring forcing said piston outward into contact with the trigger to normally thrust it into the undrawn position, a plug in said recess against which the spring abuts, a screw serving to secure said plug and also said spring operating the pivoted lever on the scar, a second piston in a recess in the base of the body, a spring forcing said piston normally outward, and a strut pivoted to the sear and operated by said piston.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

SERGE KOROVINE.

Vitnesses:

S. CoRsKY, CH. BECKER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, ID. C.

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