US2632972A - Single trigger mechanism for double-barreled shotguns - Google Patents

Single trigger mechanism for double-barreled shotguns Download PDF

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Publication number
US2632972A
US2632972A US149856A US14985650A US2632972A US 2632972 A US2632972 A US 2632972A US 149856 A US149856 A US 149856A US 14985650 A US14985650 A US 14985650A US 2632972 A US2632972 A US 2632972A
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United States
Prior art keywords
trigger
barrels
sear
barrel
mass member
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Expired - Lifetime
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US149856A
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English (en)
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Defourny Noel
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/18—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns
    • F41A19/19—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns with single-trigger firing possibility
    • F41A19/21—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns with single-trigger firing possibility having only one trigger
    • F41A19/22—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns with single-trigger firing possibility having only one trigger and only one striker element

Definitions

  • the present invention relates to improved rtriggerrmechanisms for double-barreled shotguns .andiis particularly directed to a safety device .for :such' trigger :mechanisms which unfailingly prevents the simultaneous actuation of the firing pins for both barrels.
  • Anobject of the presentinvention is topro- -'videpa*single trigger mechanism for a doublebarreled shotgun which is constructed and arranged so'that a'selected one of the barrels may be..fired or discharged when the trigger is first t'pressed and the other barrel cannot be fired until ":after'the recoil resulting from the first discharge.
  • Another object is to provide a single trigger "mechanism for a double-barreled shotgun which includes a scar actuating assembly operated by the trigger and adjustable to provide for the ini- ".tial. firing of a selected one of the barrels, and a safetydevice moving in response to the counterrecoil movement :of the shotgun to then position the sear actuating assembly for firing of the .other barrel.
  • a sear actuating assembly mounted on the single trigger for both oscillating and sliding movement relative to the latter, a control assembly for manually setting the oscillated position of the sear actuating assembly to determine which of the barrels will be first discharged, and a safety device controlling the sliding movement of the sear actuating assembly to position the latter for discharging the second barre1 in response to the counter-recoil movement of the shotgun and including a swingable mass movable in response to movements of the gun and connected to the sear actuating assembly, spring means urging the mass in one direction and a latch member which, when the gun is cocked, holds the mass against the action of the spring means and releases the mass when the latter is displaced by the counterrecoil movement of the gun so that the spring means may then move the released mass to a position disposing the sear actuating assembly for discharge of the second barrel when the single trigger is next pulled.
  • ..Eig..1 is a side elevational .view of a trigger :mechanism embodyin hepresent. invention and cshowneassociated with a .double-barreled .shotgun, with the usual bolt for locking the barrels being openxand the barrels still in their closed position;
  • Fig. 2 is ,a longitudinal sectional view of the trigger .mechanism of Fig. 1 taken along the longitudinal axis of the shotgun;
  • Fig. 3 is a view similar .to that of Fig. 1, but with the barrellocking bolt engaged, the barrels in their .closed position and the right-hand barrel alreadydischarged;
  • Fig. 4 is a top plan view of the .trigger plate bearing the illustrated trigger mechanism
  • Fig. 5 is an end elevational view of the device determining which of the barrels is to be first discharged
  • Fig. 6 is a fragmentary'top plan View of the sear actuating assembly positioned for firing of the first barrel, and with the parts arranged so that the left-hand barrel is discharged first;
  • Fig. 7 is a fragmentary top plan view, similar to Fig. 6, but showing the various parts positioned for discharge of the second barrel.
  • the frame of a double-barreled shotgun is indicated by the reference numeral I and has a pair of barrels 2 pivoted thereon adjacent the breech ends of the barrels with the usual slidable bolt 6 being provided to lock the barrels in their operative position.
  • An operating handle 5 is mounted at the top of frame I and is connected to the bolt 6 in a conventional manner formoving the latter between barrel locking and releasing positions.
  • the frame I has conventional hammers (not shown) pivoted thereon and carrying firing pins for discharging each of the two barrels, and a pair of sears 39 and 42 are rockable on the frame I and operatively associated with the hammers of the left and right hand barrels, respectively, in the usual manner.
  • a trigger plate t is disposed at the bottom of frame I and supports the-entire trigger mechanism which, according to the present invention, consists of a single trigger I having a lug 43 thereon and pivoted within a bracket 9 on the trigger plate 4 by a pin 8 which passes through lu-g 43 and bracket 9.
  • the usual sprin 52 engages trigger 'l for urgin the latter to swing to its rest position.
  • An L-shaped or right-angle bent latch lever I5 is pivoted at I l in the upper part of bracket 9, and the vertical, downwardly directed leg of latch lever I5 is adapted to receive the rearwardly directed-thrust of the rear end -of bolt 6- against the front edge 49 of the latchlever.
  • the other leg of latch lever I5 is substantially horizontal .andterminates in a nose portion I7 whichis engageableeither in. a notch 18 formed inthe front face of a swingable mass member I2 or, as at I9 (Fig. 3), under the lower edge of the mass member I2.
  • the swingable mass member I2 is pivoted at II on rearwardly extending arms of the bracket 9, with the center of mass of the member I2 being situated well above the axis defined by the pivot II.
  • a finger I3 extends downwardly from the mass member I2 below the pivot II and projects loosely into a central hole or aperture 44 of a sear actuating member or plate 24 which is mounted for sliding and oscillating movement on the upper face of trigger I.
  • a notch 23 is formed in the front edge of finger I3 to receive a head 22 on the rear end of a rod 20 which passes through a central groove formed in the bracket 9 and is guided at the front end by engagement in a hole I6 formed in the vertical leg of latch lever I5.
  • is wound on rod 26 andinterposed between the back face 56 of the vertical leg of latch lever I and head 22 on the rear end of the rod.
  • tends to swing the mass member I2 forwardly and to displace the latch lever I5 in the direction tending to move the nose portion I'I thereof downwardly out of the notch I8 to the location I9 below the lower edge of the mass member I2.
  • the sear actuating member or plate 24 includes a forwardly extending rod 25, which oscillates in an opening at the back of lug 43 on trigger I where it is maintained by a pin 46, and a rearwardly extending rod 26, which is slidably and oscillatably received in a notch 41 formed at the front of a small plate 21 pivotally mounted on a screw or pin 28 providing a vertical pivoting axis.
  • the plate 21 is provided with a rearwardly directed horizontal extension or rod 36 engaging in a fork formed on a lever 3
  • the knob 35 swings in a transverse plane and, in order to hold it in position either to the left or to the right, the lever 3 I, at its central portion, is formed with oppositely inclined faces 32 and 33 (Fig. 5) against which the free end of a leaf spring 36 engages.
  • the leaf spring 36 and inclined faces 32 and 33 cooperate to act as a detent means for holding the lever 3
  • the trigger I is further formed with an upwardly directed projection 29 extending from the rear portion thereof in order to prevent movement of the trigger 'I by engagement against a safety abutment 48 which is slidable in the top 3 of the frame from a release position (Fig. 1) to a safety position (not shown) in the path of movement of the projection 29.
  • tends to swing mass member I2 forwardly and to rotate latch lever I5 in the direction moving the nose portion I1 thereof downwardly out of the notch I8.
  • the handle 5 is manipulated to displace the bolt 6 rearwardly for freeing the barrels 2
  • the rear end of bolt 6 engages against the face 49 of the latch lever I5 and swings the latter in a. counter-clockwise direction, as viewed in Figs. 1 and 2, so that the nose ll of the latch lever cams over the lower edge of mass member I2 and engages in the notch I8 to displace the mass member rearwardly while compressing spring 2
  • of the right-hand sear 42 is outside the path or stroke of rod 26 and consequently sear 42 then remains undisturbed by any actuation of the trigger.
  • the mass member I2 acts as described above to slide the plate 24 rearwardly, for example to the position of Fig. 7, so that the central part of the face 38 of plate 24 comes under nose 4
  • the mass member 12 is independent of the trigger i and that all of the operating parts of the mechanism, being mounted on plate 4, are also independent of other parts of the gun, so that the accurate alignment of the parts of the described mechanism necessary for its reliable operation will not be disturbed by any deformation of the gun structure resulting from hard use or mishandling thereof.
  • the illustrated mechanism is constructed and designed so that it cannot adopt an intermediate position for simultaneous discharge of both barrels since the displacement of plate 26 fully to one side er the other is always ensured by the cooperation of spring 35 and the converging faces 32 and 33 on fork 3
  • a single trigger mechanism for a doublebarreled shotgun having two rockable sears for releasing hammers associated with the related barrels and a longitudinally movable bolt for locking the barrels in operative position; the combination of a support plate adapted to be fixed below the sears, a bracket on said support plate, a trigger extending through said support plate and pivoted on said bracket, said trigger being formed with a substantially flat top surface, a scar actuating member mounted on said fiat top surface of said trigger for lateral oscillating and longitudinal sliding movement relative to the latter, a mass member pivoted on said bracket for swinging about a transverse axis dis posed substantially below the center of gravity of said mass member, a finger extending down wardly from said mass member below the pivoting axis thereof, said sear actuating member having a central opening receiving said finger so that sliding of said sear actuating member is effected by swinging movement of said mass member and the latter determines the longitudinal position of the sear actuating member, means operatively
  • a latch lever pivoted on said bracket and formed at one end to selectively engage, in one angular position, against said mass member and hold the latter in said rearward position thereof and, in another angular position, to permit swinginig of said mass member to said forward position thereof, the other end of said latch lever projecting into the path of movement of the barrel locking bolt and moved by the latter when the bolt is displaced for releasing the barrels so that said latch lever assumes said one angular position thereof, said mass member having a, recess for receiving said one end of the latch lever in said one angular position of the latter, and spring means acting on said latch lever and on said mass member and operative to continuously urge the former to said other angular position thereof and the latter to said forward position thereof so that said mass member is released from said latch lever by
  • a single trigger mechanism for a doublebarreled shotgun having two rockable sears for releasing hammers associated with the related barrels and a longitudinally movable bolt for locking the barrels in operative position; the combination according to claim 1, wherein said sear actuating member includes a rearwardly extending rod, and said means for oscillating th sear actuating member includes a manually operable adjusting member pivotally mounted for swinging about a longitudinal axis, spring means urging said adjusting member to assume a selected one of two oppositely inclined positions, and transmission means operatively connected between said rearwardly extending rod and said adjusting member for transmitting movement of the latter to said sear actuating member.
  • said transmission means includes a forked portion on said adjusting member, a transmission plate pivoted for oscillation about an axis at right angles to the axis of said adjusting member and having an extension rod engageable loosely between the legs of said forked portion, said transmission plate having a notch formed to loosely receive said rearwardly extending rod of the sear actuating member.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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US149856A 1949-03-16 1950-03-15 Single trigger mechanism for double-barreled shotguns Expired - Lifetime US2632972A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128787B (de) * 1957-05-18 1962-04-26 Horst Blaser Mehrlaeufige Einschlosswaffe
US3537203A (en) * 1968-04-10 1970-11-03 Roy E Weatherby Multiple barrel firearm having barrel selection means responsive to counter recoil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1051032A (en) * 1912-05-31 1913-01-21 Willis A Sunderland Single-trigger mechanism for double-barreled guns.
US2268349A (en) * 1938-07-30 1941-12-30 Stroever Walter Selective single trigger
US2366893A (en) * 1943-08-19 1945-01-09 Eianc Halvor Olsen Selective single trigger
US2409939A (en) * 1944-08-02 1946-10-22 Marlin Firearms Co Multiple barrel gun

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1051032A (en) * 1912-05-31 1913-01-21 Willis A Sunderland Single-trigger mechanism for double-barreled guns.
US2268349A (en) * 1938-07-30 1941-12-30 Stroever Walter Selective single trigger
US2366893A (en) * 1943-08-19 1945-01-09 Eianc Halvor Olsen Selective single trigger
US2409939A (en) * 1944-08-02 1946-10-22 Marlin Firearms Co Multiple barrel gun

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128787B (de) * 1957-05-18 1962-04-26 Horst Blaser Mehrlaeufige Einschlosswaffe
US3537203A (en) * 1968-04-10 1970-11-03 Roy E Weatherby Multiple barrel firearm having barrel selection means responsive to counter recoil

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