US3636646A

US3636646A - Barrel locking means for a double-barreled sporting gun

Info

Publication number: US3636646A
Application number: US821297A
Authority: US
Inventors: Georges Drevet
Original assignee: Manuf Fr D Armes & Cycles De S
Current assignee: Manuf Fr D Armes & Cycles De S; Manufacture Francaise D'armes & Cycles De Saint-Etienne
Priority date: 1968-10-22
Filing date: 1969-05-02
Publication date: 1972-01-25
Anticipated expiration: 1989-01-25
Also published as: DE1916617A1

Abstract

A double-barreled drop-down sporting gun including means for locking the barrel in its closed condition by means of pins carried by the barrel and engaging the remaining barreled section of the gun upon operation of a toggle lever which is locked in its barrel unlocking position as long as the barrel is open. The gun is furthermore provided with means through which the trigger controlling the firing through one barrel is mechanically connected with the triggering means for the other barrel in such a manner that after firing one shot through one barrel the marksman may actuate the same trigger again so as to fire through the other barrel.

Description

,1 1 11 1 1 llmte tent 1151 3,636,646 Drevet 1451 Jan. 25, 1972 541 BARREL LOCKING MEANS FOR A 1,816,312 7/1931 Burton ..42/44 D UBLE BARRELED SPORTING GUN 2,095,297 10/1937 Stiennon.. .....42/44 0 2,683,947 7/1954 Holt ..42/44 [72] Inventor: Georges Drevet, Saint-Etienne, Loire,

France Primary Examiner-Benjamin A. Borchelt Assistant Examiner-C. T. Jordan [73] Ass1gnee: Manufacture Francalse dArmes 8: Cycles de Saint-Etienne, Cours Fauriel, Saint- Attorney Delame Seguy Etienne, Lolre, France ABSTRACT [22] Filed: May A double-barreled drop-down sporting gun including means [2]] Appl. No.: 821,297 for locking the barrel in its closed condition by means of pins carried by the barrel and engaging the remaining barreled section of the gun upon operation of a toggle lever which is [30] Foreign Apphcauon Priomy Dam locked in its barrel unlocking position as long as the barrel is Oct. 22, 1968 France ..210 p The gun is furthermore Provided With means through which the trigger controlling the firing through one barrel is 521 u.s.c1 ..42 44 mechanically eenneeted with the triggering means for the 51 1m.c|. ..F4lcll/08,F41c 11/10 Other barrel in Such a manner that after firing one shot 58 Field of Search ..42/44,41 through one barrel the marksman y actuate the Same trigger again so as to fire through the other barrel. [5,6] References cued 3 Claims, 13 Drawing Figures UNITED STATES PATENTS 1,348,545 8/1920 Curtis ..42/44 PATENTEU JANZS 1912 SHEET 1 BF 3 7 m? J Vy m 6 w ww e M d 7 0 7 5 1w BARREL LOCKING MEANS FOR A DOUBLE-BARRELED SPORTING GUN My invention has for its object an improved sporting gun provided with superposed barrels and incorporating novel barrel-locking means, means locking said barrel-locking means in their barrel-releasing position and a double-acting triggering system.

A primary object of the invention consists in including two horizontal cylindrical pins the front tapering ends of which are adapted to slide freely within the upper part of the hinged barrel section of the gun so as to operatively engage cooperating recesses formed in the barrelled section of the gun. A connecting plate coupled with said pins is transiently shiftable under the action of an eccentric projection carried by a rotary ring the upper surface of which is provided with a tenon through which said ring is driven directly into rotation through the head of a controlling toggle lever.

A screw extending axially of the ring defines the vertical location of the assembly of the ring and connecting plate with reference'to the controlling toggle while a cylindrical section of said screw allows said plate to slide freely longitudinally over the ring. A further screw engaging the end of the hinged barrel of the gun forms through its cylindrical head a guide for this longitudinal sliding of the connecting plate.

According to a further object of the invention, the means locking the barrel-locking means in their inoperative position include a spring-urged pin slidably carried by the head of the toggle within an oblique bore and adapted upon setting of the toggle in its barrel-releasing position and consequent release of the barrel-locking pins, to engage and push a movable rod the front projecting end of which facing the rear surface of the barrelled section of the gun is pushed back by said section of the gun when the latter is closed, whereby said movable rod returns the slidable pin within the head of the toggle which may thus be shifted back into its operating barrel-locking positron.

According to a still further object of the invention, the double-acting triggering system includes two triggers cooperating with sears and adapted to be operated independently of each other for firing respectively through the lower and upper barrels. Now, the upper end of the right-hand trigger carries a pivoting mass or weight the inertia of which provides, after the firing of the first shot, the interengagement of said trigger with a notch provided in the sear of the left-hand trigger whereby it becomes possible for said first-mentioned right-hand trigger to fire the second shot and to behave thus as a single nonselective trigger providing for the firing of the two shots through the two barrels in the desired sequence.

These objects will be disclosed inter alia with further detail in the following description of an embodiment of my invention given out by way of a mere exemplification. In the accompanying drawings illustrating said embodiment:

FIG. 1 is a side elevational, partly sectional view of the mechanism of a sporting gun incorporating said embodiment, said gun being illustrated during the firing through the lower barrel while the hammer provided on the left-hand side for the firing through the upper barrel is in a cocked position.

FIG. 2 is a horizontal cross section through line a-b of FIG. 1.

FIG. 3 is a view similar to FIG. 2, the toggle being shown in its inoperative barrel-releasing position.

FIG. 4 is a transverse cross section through line cd of FIG. 1.

FIG. 5 is an exploded perspective view of the different parts forming the locking means arranged in the sequence required for their assembly.

FIG. 6 is a partly sectional view along the horizontal plane defined by the line e-f of FIG. 1, the gun being illustrated as closed with the barrel bolted in position.

FIG. 7 is a view similar to FIG. 6, the toggle being however set in its inoperative barrel-releasing position.

FIG. 8 is a perspective exploded view of the different parts forming the double-acting triggering system, said parts being shown in the sequence required for their assembly.

FIG. 9 is a partly sectional detail view showing the assembly of the right-hand trigger with the weight carried by it. FIG. 10 is a partial view of the double-acting triggering system carried by the trigger guard illustrated partly sectionally, the gun being shown after the firing through the lower barrel while the hammer corresponding to the firing through the upper barrel is in its cocked position.

FIG. 11 is a partial plan view corresponding to FIG. 10, the hammers not being illustrated.

FIG. 12 is a side elevational view partly in longitudinal sectional view of the mechanism of a sporting gun after the cocking of the right-hand hammer corresponding to the firing through the lower barrel.

FIG. 13 is a partly sectional plan view extending through line g-h of FIG. 12 after removal of the hammers.

The sporting gun provided with superposed barrels and incorporating an embodiment of my invention includes chiefly a hinged barrel section 1 in the upper part of which may slide longitudinally two cylindrical pins 2 the front ends 2 of which are slightly frustoconical and engage, when the gun is to be locked in its closed position, the corresponding housings 3 in the barrelled section 3 of the gun. Said pins are provided at points facing each other with notches 2 for engagement by cooperating tenons 4 formed on a connecting plate 4 extending in the horizontal plane passing through the axes of the pins and assuming a translational movement through the agency of a ring 5 revolving freely within a recess in the hinged barrel I.

Said ring 5 carries on its lower surface resting on the plate 4 an eccentric tenon 5 (FIG. 2) engaging a slot 4 formed in the plate 4, said slot being perpendicular to the longitudinai axis of the pins 2 while the upper surface of said ring 5 carries a tenon 5 fitted within a corresponding groove formed in the lower surface of the head 6 of the controlling toggle lever 6. An assembling screw 7 passes in succession through the connecting plate 4 and ring 5 and its end is screwed into the head 6' of the control toggle. Said screw 7 shows furthermore a cylindrical bearing surface 7 which provides for the free guiding of the elongated longitudinal slot 4 formed in the plate 4, while the head of said screw holds the latter at a constant height. To improve the longitudinal guiding of the axially shiftable plate 4 a screw 8 engages through its cylindrical head 8 a longitudinal slot 4 in the plate in order to cut out any risk of wedging of the pins 2 in their recesses.

By reason of these arrangements it is apparent that the angular shifting of the control toggle 6 produces through the eccentric tenon 5' a rearward sliding of the connecting plate 4 and consequently of the pins 2 which unlock the barrel which is thus released as illustrated in FIG. 3.

It should be remarked that the head 6 of the control toggle 6 is provided along its rear outline with a recess 6 the sloping surface of which is engaged by a stud 9 slidingly housed within a blind bore formed within the upper part of the barrel 1, said stud being subjected to the pressure of a coil spring 10 which urges said stud towards the toggle so as to allow the return of the latter into its operative position for which the barrel is secured to the barrelled section of the gun by the pins 2.

A pin 11 housed in a blind bore formed obliquely in the front surface of the head 6 of the toggle 6 is urged outwardly of the latter by a coil spring 12 (FIG. 6) so as to engage, at the end of the releasing stroke of the toggle, the rear end of a cooperating pusher rod 13 slidingly carried by the barrel. Said pusher rod 13 is thus urged forwardly by the pin 11 then in registry with it and entering the rear end of the bore housing said rod 13.

The barrel being released, the toggle 6 is thus locked in position by the interengaging pin 11 and rod 13. When closing the gun I the rear surface of the barrelled section 3 engages the front projecting end of the pusher rod 13 so as to make the latter move rearwardly and push back the pin 11 against the pressure of the cooperating coil spring 12. The toggle is thus released in its turn and returns into its barrel locking position into which it is urged by the stud 9 acting on the sloping surface of the notch 6 The double-acting triggering system includes two

triggers

14 and 15 adapted to be operated separately as usual, for the separate firing through the upper and lower barrels. Additionally the right-hand trigger 15 carries at its upper end a small weight 16 pivotally secured to said trigger, said weight providing for the coupling, after the first shot is fired, between said right-hand trigger and the left-hand sear 17 (FIG. 12) so as to allow a subsequent firing through both barrels upon operation of said trigger 15.

To this end, the right-hand trigger 15 which normally controls the firing through the lower barrel is pivotally secured to the spindle 18 passing through the trigger guard 19 whereas the right-hand sear 20, also pivotally secured to said spindle 18 adjacent the trigger 15, terminates at its rear end with a nose 20' engaging permanently the inner end 15 of the trigger 15 through the agency of a hairpin-shaped spring 21.

At its front end, the right-hand sear terminates with a nose 20 which cooperates after the cocking operation with a notch in the right-hand hammer 22 providing for the firing through the lower barrel, said hammer being pivotally secured to the spindle 23 extending through the trigger guard.

The hairpin-shaped spring 21 includes a forwardly projecting extension clamped within a sloping slot formed in the corresponding upstanding flange of the trigger guard 19 while the central round portion 21 of the spring 21 engages an arcuate recess 19 in the trigger guard. The rear bent extension 21 of the spring 21 engages a bore 20 in the sear 20 so as to urge the nose 20 of the latter against the inner end 15 of the trigger 15. I

The right-hand trigger 15 may engage through its rear end the strap shaped end 16 of the weight 16 pivotally secured to said trigger through the agency of the spindle 24 passing through said strap 16.

Said weight 16 includes a shaped transversely shifted extension the front surface of which forms a bearing 16 cooperating with the shaped surface 22 of the right-hand hammer 22 (FIG. 12).

Said weight 16 is furthermore urged forwardly at all moments against the upper surface of the trigger 15 by a torsion spring 25 surrounding the spindle 24 as clearly shown in FIG.

It should be remarked that the weight 16 is provided in registry with its strap-shaped section with an upper notch 16 extending transversely beyond the shaped extension of the weight so as to mate with the lower shaped notch 17' formed in an extension rising above the left-hand sear 17.

Said left-hand sear l7 lies adjacent the left-hand trigger l4 and is pivotally secured together with the latter to the spindle 18.

The left-hand sear 17 is provided at its rear end with a nose l7 permanently urged against the cooperating bent end 14 of the left-hand trigger 14 by a hairpin-shaped spring 26 which is similar to the spring 21 and arranged symmetrically of the latter.

The front end of the left-hand sear forms a nose 17 adapted to engage, after the cocking operating, a notch in the left-hand hammer 27 providing for the firing through the upper barrel (FIG. 12).

Each of the triggers l and 14 forms at its rear end a flat section designated respectively by and 14 both of said flat sections cooperating with the end of the safety lever 28.

The double-acting triggering system described hereinabove operates as follows:

Upon cocking of the hammers the right-hand hammer 22 pivots and acts through its shaped surface 22 on the bearing surface 16 of the weight 16 and constrains it to rock rearwardly around its spindle 24 against the pressure of the spring 25 as illustrated by the arrow F (FIG. 12). At the end of the cocking operation the upper notch 16 formed in said weight registers with the rear of the notch 17 in the left-hand sear 17.

When the right-hand trigger 15 is depressed so as to fire a shot through the lower barrel, it carries along with it the nose of the corresponding right-hand sear 20 which pivots round the spindle 18 and releases consequently the right-hand hammer 22.

At the same moment, the weight 16 is released and the coil spring 25 makes it pivot forwardly so that its notched section 16 is shifted into the notch 17 formed within the raised extension of the left-hand sear 17.

When the shot is fired, the weight 16 is projected rearwardly under the action of its own inertia as a consequence of the reaction produced by the marksman s shoulder and this prevents the untimely firing of the second shot by an unintentional pressure of the marksman s finger on the right-hand trigger at the moment of the kick of the gun.

After the first shot has been fired, the weight 16 is returned forwardly by its spring 25 for a final engagement of its notched section 16 underneath the nose overlying the notch 17 in the raised extension of the sear 17 which is thus coupled in a vertical direction with the right-hand trigger 15.

Obviously the firing of the second shot may be performed as well by depressing the left-hand trigger in a conventional manner.

What I claim is:

1. In a double-barrelled drop down sporting gun including a barrel and a barrelled section pivotally secured together, the provision of a barrel-locking mechanism comprising two cylindrical locking pins parallel with the barrel axes when the barrel is in its closed position and adapted to slide along the direction of their axes between an unlocking position inside the barrel and a projecting position in which they engage the rear end of the barrelled section of the gun, a plate parallel with the plane of the pins axes and provided with two transverse projections engaging permanently the corresponding locking pins, said plate being adapted to slide in its plane to shift said pins between their two aforesaid positions, means controlling the movements of said plate and thereby those of the locking pins, a toggle lever controlling said last-named means, said plate-controlling means including a rotary ring lying in a plane parallel with said plate, said ring including an eccentric stud which engages a transverse slot in said plate and a further stud facing away from the plate and engaged by the toggle lever, the angular movement of said toggle lever causing said further stud to make the ring rotate and thereby shift the plate longitudinally, a projection of said toggle lever holding said ring axially and engaging a longitudinal slot on the plate, and further means guiding the plate longitudinally in parallelism with the axis of the locking pins.

2. In a double-barrelled drop down sporting gun, including a barrel and a barrelled section pivotally secured together, the provision of a barrel-locking mechanism comprising two cylindrical locking pins parallel with the barrel axes when the barrel is in its closed position and adapted to slide along the direction of their axes between an unlocking position inside the barrel and a projecting position in which they engage the rear end of the barrelled section of the gun, a plate parallel with the plane of the pin axes, provided with two transverse projections engaging permanently the corresponding locking pins and adapted to slide in its plane to shift said pins between their two aforesaid positions, means controlling the movements of said plate and thereby those of the locking pins, a toggle lever controlling said last-named means, the barrel being provided with a bore extending through it in parallelism with the locking pins, the plate-controlling means including a rotary ring lying in a plane parallel with said plate and including an eccentric stud engaging a transverse slot in the plate and a further stud facing away from the plate and engaged by the toggle lever, the angular movement of which causing said further stud to make the ring rotate and thereby shift the plate longitudinally, a projection on the toggle lever holding the ring axially and engaging a longitudinal slot in the plate, further guiding means guiding longitudinally the plate in parallelism with the axes of the locking pins, said mechanism including furthermore an arrangement holding the toggle lever in its position corresponding to the unlocked position of the pins and including a section of the toggle lever facing the rear end of the barrel, a further pin adapted to slide obliquely on the surface of said latter section of the toggle lever and registering with the rear end of the first bore when the toggle lever is in the position corresponding to the unlocked position of the locking pins, a spring urging said further pin outwardly of the toggle lever into said first bore for said position of the toggle lever, a pusher rod slidingly carried by said bore and urged outwardly to the front of the barrel upon engagement of said further pin into said first bore, said pusher rod being pushed back into said first bore by the barrelled section of the gun to 7 thereby shift said further pin back into the toggle lever and release the latter.

3. In a double-barrelled drop down sporting gun including a barrel and a barrelled section pivotally secured together, the provision of a barrel-locking mechanism comprising two cylindrical locking pins parallel with the barrel axes when the barrel is in its closed position and adapted to slide along the direction of their axes between an unlocking position inside the barrel and a projecting position in which they engage the rear end of the barrelled section of the gun, a plate parallel with the plane of the pin axes, provided with two transverse projections engaging permanently the corresponding locking pins and adapted to slide in its plane to shift said pins between their two said positions, means controlling the movements of said plate and thereby those of the locking pins, a toggle iever controlling said last named means, the barrel being provided with a bore extending through it in parallelism with the looking pins and being further provided with an oblique blind bore opening rearwardly towards the toggle lever, the platecontrolling means including a rotary ring lying in a plane parallel with said plate and including an eccentric stud engaging a transverse slot in the plate and a further stud facing away from the plate and engaged by the toggle lever and the angular movement of which causes said further stud to make the ring rotate and thereby shift the plate longitudinally, a projection on the toggle lever holding the ring axially and engaging a longitudinal slot in the plate, further means guiding longitudinally the plate in parallelism with the axes of the locking pins, said mechanism including furthermore an arrangement holding the toggle lever in its position corresponding to the unlocked position of the pins and including a section of the toggle lever facing the rear end of the barrel, a further pin adapted to slide obliquely on the surface of said section of the toggle lever facing the rear end of the barrel and registering with the rear end of the first bore when the toggle lever is in the position corresponding to the unlocked position of the locking pins, a spring urging said further pin outwardly of the toggle lever into said first bore for said last named position of the toggle lever, a pusher rod slidingly carried by said bore and urged outwardly to the front of the barrel upon engagement of the further pin inside said first bore, said pusher rod being pushed back into said first bore by the barrelled section of the gun to thereby shift the further pin back into the toggle lever and release the latter, another stud slidingly carried by the oblique bore in the barrel, a coil spring urging said other stud towards the toggle lever and a cam-shaped section incorporated with the toggle lever and engaged by the stud when the toggle lever is in the released position, to urge it into its opposite position.

Claims

1. In a double-barrelled drop down sporting gun including a barrel and a barrelled section pivotally secured together, the provision of a barrel-locking mechanism comprising two cylindrical locking pins parallel with the barrel axes when the barrel is in its closed position and adapted to slide along the direction of their axes between an unlocking position inside the barrel and a projecting position in which they engage the rear end of the barrelled section of the gun, a plate parallel with the plane of the pins axes and provided with two transverse projections engaging permanently the corresponding locking pins, said plate being adapted to slide in its plane to shift said pins between their two aforesaid positions, means controlling the movements of said plate and thereby those of the locking pins, a toggle lever controlling said last-naMed means, said platecontrolling means including a rotary ring lying in a plane parallel with said plate, said ring including an eccentric stud which engages a transverse slot in said plate and a further stud facing away from the plate and engaged by the toggle lever, the angular movement of said toggle lever causing said further stud to make the ring rotate and thereby shift the plate longitudinally, a projection of said toggle lever holding said ring axially and engaging a longitudinal slot on the plate, and further means guiding the plate longitudinally in parallelism with the axis of the locking pins.

2. In a double-barrelled drop down sporting gun, including a barrel and a barrelled section pivotally secured together, the provision of a barrel-locking mechanism comprising two cylindrical locking pins parallel with the barrel axes when the barrel is in its closed position and adapted to slide along the direction of their axes between an unlocking position inside the barrel and a projecting position in which they engage the rear end of the barrelled section of the gun, a plate parallel with the plane of the pin axes, provided with two transverse projections engaging permanently the corresponding locking pins and adapted to slide in its plane to shift said pins between their two aforesaid positions, means controlling the movements of said plate and thereby those of the locking pins, a toggle lever controlling said last-named means, the barrel being provided with a bore extending through it in parallelism with the locking pins, the plate-controlling means including a rotary ring lying in a plane parallel with said plate and including an eccentric stud engaging a transverse slot in the plate and a further stud facing away from the plate and engaged by the toggle lever, the angular movement of which causing said further stud to make the ring rotate and thereby shift the plate longitudinally, a projection on the toggle lever holding the ring axially and engaging a longitudinal slot in the plate, further guiding means guiding longitudinally the plate in parallelism with the axes of the locking pins, said mechanism including furthermore an arrangement holding the toggle lever in its position corresponding to the unlocked position of the pins and including a section of the toggle lever facing the rear end of the barrel, a further pin adapted to slide obliquely on the surface of said latter section of the toggle lever and registering with the rear end of the first bore when the toggle lever is in the position corresponding to the unlocked position of the locking pins, a spring urging said further pin outwardly of the toggle lever into said first bore for said position of the toggle lever, a pusher rod slidingly carried by said bore and urged outwardly to the front of the barrel upon engagement of said further pin into said first bore, said pusher rod being pushed back into said first bore by the barrelled section of the gun to thereby shift said further pin back into the toggle lever and release the latter.

3. In a double-barrelled drop down sporting gun including a barrel and a barrelled section pivotally secured together, the provision of a barrel-locking mechanism comprising two cylindrical locking pins parallel with the barrel axes when the barrel is in its closed position and adapted to slide along the direction of their axes between an unlocking position inside the barrel and a projecting position in which they engage the rear end of the barrelled section of the gun, a plate parallel with the plane of the pin axes, provided with two transverse projections engaging permanently the corresponding locking pins and adapted to slide in its plane to shift said pins between their two said positions, means controlling the movements of said plate and thereby those of the locking pins, a toggle lever controlling said last named means, the barrel being provided with a bore extending through it in parallelism with the locking pins and being further provided with an oblique blind bore opeNing rearwardly towards the toggle lever, the plate-controlling means including a rotary ring lying in a plane parallel with said plate and including an eccentric stud engaging a transverse slot in the plate and a further stud facing away from the plate and engaged by the toggle lever and the angular movement of which causes said further stud to make the ring rotate and thereby shift the plate longitudinally, a projection on the toggle lever holding the ring axially and engaging a longitudinal slot in the plate, further means guiding longitudinally the plate in parallelism with the axes of the locking pins, said mechanism including furthermore an arrangement holding the toggle lever in its position corresponding to the unlocked position of the pins and including a section of the toggle lever facing the rear end of the barrel, a further pin adapted to slide obliquely on the surface of said section of the toggle lever facing the rear end of the barrel and registering with the rear end of the first bore when the toggle lever is in the position corresponding to the unlocked position of the locking pins, a spring urging said further pin outwardly of the toggle lever into said first bore for said last named position of the toggle lever, a pusher rod slidingly carried by said bore and urged outwardly to the front of the barrel upon engagement of the further pin inside said first bore, said pusher rod being pushed back into said first bore by the barrelled section of the gun to thereby shift the further pin back into the toggle lever and release the latter, another stud slidingly carried by the oblique bore in the barrel, a coil spring urging said other stud towards the toggle lever and a cam-shaped section incorporated with the toggle lever and engaged by the stud when the toggle lever is in the released position, to urge it into its opposite position.