US3800455A

US3800455A - Double acting triggering mechanism for a double barrelled sporting gun

Info

Publication number: US3800455A
Application number: US00120924A
Authority: US
Inventors: G Drevet
Original assignee: MFG FRANCAISE D ARMES AND CYCLES
Current assignee: MFG FRANCAISE D ARMES AND CYCLES
Priority date: 1968-10-22
Filing date: 1971-03-04
Publication date: 1974-04-02
Anticipated expiration: 1991-04-02

Abstract

A double barrelled drop-down sporting gun including means for locking the breech in its closed condition by means of pins carried by the barrel and engaging the remaining barrelled 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 a manner such that after firing one shot through the one barrel the marksman may actuate the same trigger again so as to fire through said other barrel.

Description

ite 1% States tet 1 Drevet 1 Apr. 2, 1974 1 DOUBLE ACTING TRlIGGERING 1,898,000 2/1933 Browning .1 42/42 A MECHANISM FOR A DDUBLE BARRELLED 3,283,436 11/1966 Bills et a1. 42/42 R 697,061 4/1902 Withercll 42/42 A SPORTING GUN 804,343 11/1905 Raus 42/42 R Inventor: Georges Drevet, Saint Etienne,

France Assignee: Manufacture Franeaise dArmes & Cycles de Saint-Etienne, Saint-etienne Loire, France Filed: Mar. 4, 1971 Appl. No.: 120,924

Related US. Application Data Division of Ser. No. 821,297, May 2, 1969, Pat. No. 3,636,646.

Primary Examiner-Benjamin A. Borchelt Assistant Examiner-C. T. Jordan Attorney, Agent, or FirmEric P. Schellin; Martin P.

Hoffman [57] ABSTRACT A double barrelled drop-down sporting gun including means for locking the breech in its closed condition by means of pins carried by the barrel and engaging the remaining barrelled 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 a manner such that after firing one shot through the one barrel the marksman may actuate the same trigger again so as to fire through said other barrel.

3 Claims, 13 Drawing Figures FMENTH] APR 2 I974 SHEET 1 OF 3 PMENIEDAPR 2:974 3.800.455

SHEET 3 BF 3 FiG.10

FFQH

DOUBLE ACTING TRIGGERING MECHANISM FOR A DOUBLE BARRELLED SPORTING GUN This is a Division of my copending application entitled Barrel Locking Means for a DOUBLE BAR- RELLED SPORTING GUN, Ser. No. 821,297, filed May 2, 1969, now US. Pat. No. 3,636,646.

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 breech 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 breech 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 barrelreleasing position and consequent release of the barrellocking 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 position.

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 non-selective 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 c-d 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 breech 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 breech 1.

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 longitudinal 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 breech 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 breech 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 breech. 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 1 the rear surface of the barrelled section 3 engages the front projecting end of the pusher rod 13 s-o 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 righthand 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 hair-pin 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 hair-pin 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 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. 9. 1

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 17 lies adjacent the left-hand trigger 14 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 17 permanently urged against the cooperating bent end 14 of the left-hand trigger 14 by a hair-pin 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 operation, a notch in the left-hand hammer 27 providing for the firing through the upper barrel (FIG. 12).

Each of the

triggers

15 and 14 forms at its rear end a flat section designated respectively by 15 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 round 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 20 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 marksmans shoulder and this prevents the untimely firing of the second shot by an unintentional pressure of the markmans 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 breech 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 breech and a projecting position in which they engage the rear end of the barrelled section of the gun, and the further provision of a double acting triggering system including a trigger, sear and hammer for one barrel, a trigger, sear and hammer for the other barrel, a weight pivotally secured to the upper end of the trigger provided for one barrel, engaged by the corresponding hammer when cocked and adapted to move between a front position and a rear position, a spring urging said weight forwardly against the pressure of the cocked hammer and means whereby the forward motion of said weight under the action of its spring after release of said hammer engages said weight operatively with the sear provided for the other barrel, said engagement allowing the trigger provided for said one barrel to operate the sear and hammer provided for the other barrel.

2. In association with the barrel-locking mechanism claimed in claim 1, the further provision of a triggerguard, a common spindle carried by the trigger-guard and pivotally carrying both sears and triggers and hairpin shaped springs engaging through one end of the trigger-guard and through the opposite end the corresponding sears to urge said sears against the cooperating triggers controlling them.

3. In association with the barrel-locking mechanism claimed in claim 1, a notched raised section on'the'sear provided for the other barrel and a projection on the weight facing said raised section and adapted to engage operatively the latter upon release of the hammer for said one barrel and consequently of the spring-urged weight after a transient rearward motion of the weight under the action of its inertia.

* l =l= =l

Claims

2. In association with the barrel-locking mechanism claimed in claim 1, the further provision of a trigger-guard, a common spindle carried by the trigger-guard and pivotally carrying both sears and triggers and hair-pin shaped springs engaging through one end of the trigger-guard and through the opposite end the corresponding sears to urge said sears against the cooperating triggers controlling them.

3. In association with the barrel-locking mechanism claimed in claim 1, a notched raised section on the sear provided for the other barrel and a projection on the weight facing said raised section and adapted to engage operatively the latter upon release of the hammer for said one barrel and consequently of the spring-urged weight after a transient rearward motion of the weight under the action of its inertia.