US1830212A - Trigger-mechanism for firearms - Google Patents

Trigger-mechanism for firearms Download PDF

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Publication number
US1830212A
US1830212A US354088A US35408829A US1830212A US 1830212 A US1830212 A US 1830212A US 354088 A US354088 A US 354088A US 35408829 A US35408829 A US 35408829A US 1830212 A US1830212 A US 1830212A
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United States
Prior art keywords
trigger
sear
coupler
latch
triggers
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Expired - Lifetime
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US354088A
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English (en)
Inventor
Stiennon Louis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Winchester Repeating Arms Co
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Winchester Repeating Arms Co
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Publication date
Application filed by Winchester Repeating Arms Co filed Critical Winchester Repeating Arms Co
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Publication of US1830212A publication Critical patent/US1830212A/en
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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
    • F41A19/20—Double-trigger arrangements having the possibility of single-trigger actuation

Definitions

  • TRIGGER MECHANISM FOR FIREARMS Filed April 10, 1929 2 Sheets-Sheet 2 Patented Nov. 3, 1931 area LOUIS STIENNON, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO WINCHESTER RE- PEATING ARMS (10., OF NEW HAVE-N, CONNECTICUT, 'A' CORPORATION OF DELAWARE TRIGGER-BEEGHANISEVI FOR FIREARBIS Application filed April 10, 1929, Serial No My invention relates to an improved trigger-mechanism primarily designed for multiple-barrel arms but not so li1nited,'the ob ject being to provide a trigger-mechanism in which one trigger controls more than one barrel and is characterized by fewness of parts, compactness of organization, certainty of operation, durability in use, and convenience of operation.
  • Fig. 1 is a view in side elevationof one form which a trigger-mechanism embodying my invention may assume, the sears of the firearm being shown by broken lines, the ends of the trigger-plate being broken away, and the parts of the mechanism being shown in their uncooked positions;
  • Fig. 2 is a plan view thereof
  • Fig. 3 is a view thereof in transverse section on the line 3-3 of Fig. 1;
  • Fig. 5' is a broken perspective view of'the mechanism partly in section, the left-hand trigger being removed and the parts being shown in their cocked positions;
  • Fig. 5 is a corresponding view with the parts shown in their intermediate positions as the result of the discharge of one barrel;
  • Fig. 6 is a corresponding view of the parts shown in their final or'uncocked positions
  • Fig. 7 is a detached perspective view of the left-hand trigger
  • Fig. 8 is a corresponding view of the righthand trigger
  • Fig. 9 is a detached perspective view of the pivotal latch
  • the said mechanism being provided with two triggers, whereby one trigger may fire both barrels consecutively in the order rightleft and the other trigger may fire both barrels consecutively in the order ..left.
  • the said slot 17 releft-h and trigger 20, while the slot 18 receives the body-portion 21 of the right-hand trigge'r 22, these triggers being hung upon a transverse pivotpin 23 extending transversely through the said mounting-block 16.
  • the said triggers (Figs. 7 and'8) are so formed that the finger-piece 2 f the left-hand trigger is located substantially in 'linewith and directly back of the finger-piece 25 of the right-hand trigger 22-with suflicient space-be tween them for the readyinsertion of the trigger-linger of the user of thearm.
  • the mounting-block 16 is alsoformed'with alongitudinal passage 26 located between the slots 17 and 18 aforesaid and extending from front to rear through the block but not I downward through the trigger-plate 15.
  • Thelower portion of the said passage. 26 receives a reciprocating sear-coupler 27 ,:the ends of which project therefrom, as shown.
  • the foreward end of the said sear-coupler27 is pivotally connected by a pin 28 with the lower end of an operating-lever 29'rocking upon a stud 80 in the upper end of anintegral lug 31 upstanding from the triggerplate 15 toward the forward end thereof.
  • the rear face of the upper endof the rocking operating-lever 29 is formed with afsocket 32 for the reception of the rounded forward end of a guide-rod 33 having its rear end passed through and sliding in a perforation in an abutment-lug 34'upstanding from the forward end of a pivotal latch 35 located in the upper portion of the said passage 26 and pivotally mounted upon the transverse pivotpin 23 aforesaid.
  • the said guide-rod 33 is formed near its forward end with an abutment-collar 36 against the rear face of which a helical operating-spring 37, encircling the rod, impinges, the rear end of the said spring abutting against the forward face of the abutment-lug 34 aforesaid.
  • the rear end of the said latch 35 isformed with an upturned arcuate arm 38 adapted to enter a peripheral groove 39 in the cylindrically-contoured outer face 40 of a pivotal inertia-weight 41 which rocks at its a lower end upon a transverse pin 42 passing through a pair of integral upstanding ears 43 43 formed upon the upper face of the trigger plate 15 toward the rear end thereof.
  • the latch 35 is provided 29 with a depending rearwardly-beveled tooth co-acting with a complementary upstanding tooth 45 formed upon the sear-coupler 27 toward the forward end thereof.
  • the said latch 35 is also provided, toward its rear end,
  • the said latch 35 is provided at a point to the rear of the transverse pivot-pin 23 upon w iich it rocks, with a transverse lifting-pin 48 projecting equally on either side of it, its
  • the left-hand trigger 20 is formed with a sear-lifting nose 51 while the right hand trig- -ger is formed with a corresponding sear-lifting nose 52.
  • the left-hand trigger 20 is formed with a coupler-lifting shoulder 53, while a corresponding coupler-lifting .shoulder 54 is formed directly in front of the sear-lifting nose 52 of the right-hand trigger 22
  • the coupler-lifting shoulders 53 and 54 just described, receive the leftand righthand ends of a transverse coupler-lifting bar located at the extreme rear end of the sear-coupler 27 so that when the said coupler is at the limit of its rearward position, the
  • the unitary trigger-mechanism carried by the trigger-plate 15, as above described, is adapted. to be applied to a double-barreled gun of standard construction in such manner that when the mechanism of the gun is oper ated to cock the same, some element of the gun-mechanism will act to force the upper end of the operating-lever 29 rearwardly a ainst the tension of the operating-spring 3. whereby the parts will assume the positions shown in'Fig. 4.
  • the effect of rocking the upper end of the lever 29 from front to rear willbe to draw the sear-coupler 27 forward to the limit of its forward movement, whereby its tooth 4'?
  • the sear-lifting noses 51 and 52 of the two triggers will respectitely lie directly under and close to the inturned fingers 61. and 62 of the leftand right-hand sears 63 and 64, respectively, of the gun-structure, which may be of any standard construction.
  • a further effect of the recoil, due to the discharge of the right-hand barrel, is to move the right-hand trigger 22 rearwardly away from the trigger-finger of the user, thereby occasioning what is, in effect, a relaxation of the trigger-finger from the trigger.
  • This phenomenon is known in the art as the involuntary relaxation.
  • the muscular elasticity of the users hand causes the trigger-finger to resume its interrupted pressure upon the righthand trigger, thus occasioning the phenomenon known in the art as the involuntary pull, which, as will be hereinafter shown, would if not nullified, occasion the involuntary discharge of the left-handbarrel in rapid succession after that of the right-hand barrel.
  • one trigger may be utilized to fire both barrels consecutively in the order right-left and the other trigger may be utilized to fire both barrels consecutively in the order left right and, furthermore, that when either barrel has been fired by apull on the appropriate trigger, a second intentional pull on either trigger will fire the other barrel. Furtheremore, it will be seen that the unintentional firing of a second barrel, due to the involuntary pull, is obviated by the presence in my improved mechanism of the pivotal intertia-weight.
  • the transverse bar 55 at th'e rear end of the coupler 27 makes direct contact at its respective ends with the inturned-fingers 61 and 62 of the sears 63 and 64 when the coupler 27 is rocked on its pivot.
  • the searlifting noses 51 and 52 of the respective triggers 20 and 22 are forwardly extended respectively at 65 and 66 to form hooks which overlie the upper face of the respective ends of the transverse bar 55 of the sliding-coupler 27 when the same is in its rearmost position.
  • a double-barreled firearm the combination with the two triggers thereof, firingmechanisms for the respective barrels, connecting-means constructed and arranged to connect the respective triggers-with the said firing-mechanisms in such manner that one trigger may be used to effect the firing of both barrels consecutively in the order rightleft and the other trigger may fire both barrels consecutively in the order leftright;
  • the said means comprising a reciprocating sear-coupler, a pivotal latch coacting therewith to control the movement thereof into its sear-couplingposition, and a pivotal inertia-weight mounted in the gunstructure with capacity for forward swinging movement with respect thereto under the recoil of the arm and co-acting with the said pivotal latch to nullify the involuntary pull upon either of the said triggers.
  • connecting-means constructed and arranged to connect the respective triggers with the said firing-mechanisms in such manner that one trigger may be used to effect the firing of both barrels consecutively in the order rightleft and the other trigger may fire both barrels consecutively in the order leftright
  • the said connecting-means comprising a longitudinally-reciprocatable springpressed sear-coupler and a pivotal doublenose latch controlling the same and controlled in turn by either ofthe said triggers to permit the coupler to successively move into its intermediate and sear-coupling positions.
  • a double-barreled firearm the combination with the two triggers thereof, of firing-mechanisms for the respective barrels, connecting-means constructed and arranged to connect the respective triggers with the said firing-mechanisms in such manner that one trigger may be used to efiect the firing of both barrels consecutively in the order -rigl1t-left and the other trigger may fire both barrels consecutively in the order leftrightf
  • the said means comprising a reciprocating sear-coupler and a pivotal latch coacting therewith to control the movement thereof into its sear-coupling position, and common spring-means actuating the said sear-coupler and latch.
  • the said means comprising a reciprocating sear-coupler and a pivotal latch co-acting therewith to control the movement thereof into its sear-coupling position, and spring-means having the three-fold function of actuating the sear-coupler and latch and also to return either trigger to its forward position when released.
  • a double-barreled firearm the combination with two sears, two triggers, a longitudinally-reciprocatable sear-coupler, a latch therefor, a pivotal inertia-weight mounted in the firearm-structure with capacity for forward swinging movement with respect there to and co-acting with the said latch when the arm recoils to nullify the involuntary pull, and spring-means to return the said weightto its retired position.
  • a double-barreled firearm the combination with two sears, two triggers, a searcoupler, a latch therefor, a pivotal inertiaweight mounted in the firearm-structure with capacity for forward swinging movement with respect thereto and co-acting with the said latch when the arm recoils to nullify the involuntary pull upon either of the said triggers, spring-means to return the said .weight to its retired position, and frictionmeans between the latch and weight for holding the latter in its operative position.
  • the said means comprising a reciprocating sear-coupler and a pivotal latch co-acting therewith to control the movement thereof into its sear-coupling position, the said sear-coupler and latch being each provided with two teeth for co-actionin holding the spring-pressed sear-coupler in its retired and intermediate positions.
  • a trigger-mechanism of the character described having a trigger, a sear-coupler, a latch co-acting therewith and a single spring acting upon the said trigger, sear-coupler and latch for moving each of the said parts in one direction.
  • a longitudinally-movable sear-coupler having retired, intermediate, and sear-coupling positions in which latter position it is operable by either of the said triggers, a latch controlled by either of the said triggers and coacting with the said sear-coupler for successively holding it in its fully-retired and intermediate positions, a pivotal inertia-weight mounted in the gun-structure with capacity for forward swinging-movement with respect thereto under the recoil of the arm to engage the said latch and cause the same to hold the sear-coupler in its intermediate position, whereby an involuntary pull upon either of the said triggers is nullified.
  • a longitudinally-movable sear-coupler having retired, intermediate, and sear-coupling positions in which latter position it is operable by either of the said triggers, a latch controlled by either of the said triggers and co acting with the said sear-coupler for successively holding it in its retired and intermediate positions, a pivotal inertia-weight mount ed in the gun-structure with capacity for forward swinging-movement with respect thereto under the recoil of the arm to engage the said latch and cause the same to hold the said sear-coupler in its intermediate position.
  • a unitary trigger-mechanism for dou-, ble-barreledfirearms consisting of triggerplate, .a mounting-block upstanding thereafrom and havlng two complementary,longl-v table sear-coupler located in the said block.
  • a pivotal latch also located between the said triggers at a point above the said sear-coupler, a pivotal inertiaweight mounted upon the triggereplate with.
  • a double-barreled firearm having a firing mechanism including a trigger for each of the respective barrels thereof; retirable connecting means adapted to connect together portions of the firing mechanism of each barrel for concurrent operation by the trigger of either thereof; a spring normally urging the said connecting means into operative position; and a pivotal inertiaweight mounted in the firearm-structure so as to be swung relatively with respect thereto by the recoil of the firearm and positioned to prevent when so swung the movement of the said connecting means into operative position.
  • a selective double-trigger mechanism for multiple-barrel firearms the combination with a pair of sears; of a pair of triggers, each adapted to independently operate its complementary scar; and a sear-actuator adapted to operate either of said sears and movable for such purpose by either one of the two said triggers without moving the other trigger.
  • a selective double-trigger mechanism for double-barrel firearms the combination with a pair of firing-mechanisms includ ing the respective scars thereof; of a shiftable sear-actuator; of a pair of triggers, each adapted to actuate its complementary sear independently of the said sear-actuator for releasing one firing-mechanism, and each adapt-' ed to move the said sear-actuator to cause the same to release the other of the said firingmeohanisms through the intermediary of the sear thereof.
  • a selective double-trigger mechanism for double-barrel firearms the combination with a pair of firing-mechanisms including the respective sears thereof; of a shiftable sear-actuator adapted to directly operate the said sears; and a pair of triggers each adapted to actuate its complementary sear independently of the said sear-actuator and of the other trigger for releasing one firing-mechanism, and eachadapted to move the said searactuator to cause the same to release the other of the said firing-mechanisms through the intermediary of'the sear thereof.

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  • General Engineering & Computer Science (AREA)
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US354088A 1928-08-22 1929-04-10 Trigger-mechanism for firearms Expired - Lifetime US1830212A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9170063B2 (en) 2010-05-12 2015-10-27 John M. Krieger Firearm trigger assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9170063B2 (en) 2010-05-12 2015-10-27 John M. Krieger Firearm trigger assembly

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