US2603021A - Cocking mechanism for shotguns - Google Patents

Cocking mechanism for shotguns Download PDF

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Publication number
US2603021A
US2603021A US691755A US69175546A US2603021A US 2603021 A US2603021 A US 2603021A US 691755 A US691755 A US 691755A US 69175546 A US69175546 A US 69175546A US 2603021 A US2603021 A US 2603021A
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US
United States
Prior art keywords
cam
hammer
gun
recess
hammers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US691755A
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English (en)
Inventor
Paulve Marcel
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.)
Francaise Des Munitions De Tir Et De Guerre (anciens Gevelot & Gaupillat) Ets SA Ste
SOC FR DES MUNITIONS DE CHASSE DE TIR ET DE GUERRE
Original Assignee
SOC FR DES MUNITIONS DE CHASSE DE TIR ET DE GUERRE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of US2603021A publication Critical patent/US2603021A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/06—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for breakdown guns
    • 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
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/39—Cocking or firing mechanisms for other types of guns, e.g. fixed breech-block types, forwardly-slidable barrel types
    • F41A19/41—Cocking or firing mechanisms for other types of guns, e.g. fixed breech-block types, forwardly-slidable barrel types for breakdown guns

Definitions

  • This invention relates to sporting guns or rifles and more particularly contemplates the manufacture on an industrial scale of a gun or vrifle which has heretofore been manufactured ⁇ *by empirical means by skilled craftsmen.
  • the barrels have been assembled by brazing or with tin solder.
  • the same is true as regards the manufacture of the mechanism, in which gen ometrically shaped pieces and spring blades necessitate le finishing work.
  • the present invention consists in a sporting gun or rifle of the kind comprising a frame and two barrels hinged thereto, having two sliding hammers, each of whichvare cocked by a spring compressed by the breaking and closing of the gun, and which are held in cocked position by sears.
  • the front end of each hammer co-operates with an appertaining cooking cam pivotally mounted in a block which in turn is pivotally mounted on the rocking axis of the barrels and is rocked by the rocking of the barrels upon the opening and closing of the gun.
  • the cocking cams are pivotally mounted, within a single recess in the said block, on a hinged pin located parallel to the pivotal axis of the block.
  • Each cam has an upper and a lower bevel, adapted to selectively engage a bevelled surface within the recess, whereby each oi said cams may selectively occupyrone of two positions according to the engagement of either of said two ybevels thereon.
  • Hooks having circular recesses therein are vprovided on the two barrels, respectively, the said frame having two recesses disposed longitudinally of theframe and having disposed therein, about the rocking axis of the barrels, bushes which are adapted to be receivedin the circular recesses in the said hooks.
  • the said bushes may be removable for the purpose of replacement.
  • the gun or rie according to the invention is taining ejector.
  • each transmitting lever opposite the end co-operating with its cartridgeejector is caused upon the opening of the gun to assume a position which is such that, when the appertaining cooking cam has lbeen rocked to move back its associated hammer withv compression of the. hammer cooking spring and has moved past its .furtherest .projected position so that expansion of the said spring returns the said ham mer suddenly forward, the forward end of said hammer impinges violently against the said lever vfor automatic ejection of the cartridge.
  • each hammer ⁇ carries a roller pivotally secured theretorand adapted to cooperate with its respective cooking cam for actuation thereby, and the forward end of each hammer is furnished with va sloping portion adapted to co-operate with its associatedv movement transmitting lever for actuation of its apper-
  • the block is provided on its lower side With an abutment adapted, when the gun is opened,v to bear ,against a Abearing surface on the frame of the gun forthe purpose of limiting the extent to which the barrels can be rocked.
  • Each hammer cooking spring is housed within an axial recess in Vitsrhammer and bears against the Vframe of the gun with its free end.
  • Fig. 1 is a longitudinal vertical section of the mechanism of the gun, one hammer being shown in uncooked position;
  • Fig. 2 is a perspective view of the frame of the gun and appended parts
  • Fig. 3 is a perspective View of the barrel assembly rotated through 180 from its position shown in Fig. l;
  • Fig. 4 is an enlarged fragmentary longitudinal vertical section of the frame, showing the position of the parts when the gun has been opened fully;
  • Fig. 5 is a View similar to Figfi, showing the parts when one hammer is cocked and the gun is open;
  • Fig. 6 is a partial plan and horizontal section through the frame of Fig. 2.
  • the gun comprises a frame I to which is secured the stock. On a hinge-pin 2 of said frame, there is pivotally mounted a pair of barrels 3. A fore-part 4 which serves to hold the latches 3 of the barrels 3 in engagement with the hinge-pin 2 is itself held by a latch 6 against an assembly member 5 of said barrels 3. The latched condition of latch 6 is maintained by the action of a spring 1.
  • the forward part of the frame I has a mortise Ia.
  • a block 8 disposed in said mortise Ia is journaled onthe hinge-pin 2 mounted in the frame I.
  • This block 8 controls the mechanism as a whole. It has a projection 8a which fits in a slot 4 formed in the fore-part 4.
  • the opening of the gun rocks the block 8 about the pin 2.
  • the block 8 has an abutment y8 which limits the breakdown of the gun.
  • a pair of horizontal slots 9 formed in the frame receive the two hammers 9, respectively, which are slidable horizontally. Said hammers 9 effect percussion of the cartridges and ejection of the cartridge cases, moved forwardly by the action of their springs I8. held cocked by their sears I I, respectively, which are latched in the hammer catches 9a by the springs I2.
  • Fig. 1 At the right-hand side of Fig. 1 there is shown one trigger I3 which When actuated by linger pressure rocks its corresponding sear II which releases its hammer 9 which under the action of its spring I0, when the gun is closed, impinges against a cartridge placed in a barrel 3.
  • cams I4 are housed in a recess 8b formed in the block 8 with parallel plane sides and a rear plane surface 8c at an acute angle to the longitudinal axis of the block 8.
  • Cams I4 actuate the hammers 9, respectively, through rollers I5 pivotally carried at the forward ends of the hammers 9, respectively.
  • each cam I4 is provided on its lower forward end with an upper bevel I4a and a lower bevel I4b shown in dotted lines in Figs. 1, 4 and 5, so that each cam is adapted to bear selectively through either bevel I4a or bevel I4b against the rear plane surface 8 of the recess 8b housing the cams I4 in the block 8.
  • a cam I9 is mounted in the recess 8b of the vblock 8 for a purpose hereinafter described.
  • the hammers 9 areA
  • the frame I has three recesses A, B and C (Fg. 2).
  • the recess A which is the central mortise ISL receives the block 8 and the parts carried thereby (that is the pair of movable cams I4, the pair of movement transmitting levers I6 and the xed camIS)
  • the two side recesses B and C receive the barrel latches 3', respectively.
  • each cam I4 pushes back its hammer 9 through its roller I5.
  • the cam I4 pushes its hammer 9 back as far as the point at which the cam I4 passes a line parallel with the line of movement of the hammer 9 and crosses the horizontal axis of the roller I5.
  • the travel of hammer 9 is not long enough for the hammer 9 to engage its catch 9a on its sear I I.
  • said cam I4 is rocked upwardly (Fig.
  • the cam I4 which in its raised position illustrated in Fig. 4 bears through its upper bevel I4a against-l the surface ⁇ 8c of the recess 8b in the block 8 that encloses same, urges while said closing movement is being executedits hammer 9 back through a sufcient distance in order that its sear I I may engage the hammer 9 through its catch 9a provided for this purpose (Fig. 5).
  • the cam I4 rocks downwardly (Fig. 5), leaving its hammer 9 engaged by its sear II in readiness for the firing of the freshly chambered cartridge.
  • each cam I4 acts upon its hammer 9y to cam the same, in the opening movement of the gun, the displacement of hammer 9, however, being not sufcient to engage the hammer 9 with its sear I I, whereas the camming displacement, in the closing movement, does cause such engagement because the tip of the cam I4 moves toward and away from the axis of the hinge-pin 2 during the opening and the closing of the gun, respectively, by reason of its angular shifting.
  • Figs. 4 and 5 by radial broken lines Rand r, respectively. It will be seen, Fig.
  • Said cam vI9 is housed in therecess!!b of the block --onrthe hinge-pin-Z. It'fis heldfast by a'projection I9 on its lower portion and retained inra grooveformed in the framel.
  • Closure of the gun is ensured byasingle latch member 20-mountedon vthe'fram-e l, lmovable horizontally by the angular displacementof a key member 2l; and held in latched condition by a spring-22.
  • Said spring 22 is contained in Aa recess formed in the shankportion of the frame I.
  • Said latch 2D guided'by a pairofv lateral slideways, movesto engage therupper face-ofthe end ofy the extension of the barrels 3'.
  • the barrel latches 3 in recesses Band C are rotatable on bushing 2a, respectivelyin which extends the hinge-pin 2.- Said bushing'sf may be replaced when required-so as to permit of taking up any amount of wear causing play.
  • a sear adapted to engage the hammer for holding itin its r'earmost position produced by the cam during the closing of the gun; and means for releasing said sear to cause the operative movement of the hammer.
  • ejector mechanisms for the cartridges controlled by the upper ends of the transmission levers, respectively; and a cam rigid with the frame and adapted to urge the transmission levers when the gun is in its open position into positions so that they urge the ejecting mechanisms, respectively, slightly rearwardly.
  • each rockable cam being adaptedr to be shifted through cooperation with the end of itsl corresponding hammer rod between a lower position for which it engages through its lower bevel the angular .rear surface of the recess and an upper position ,and the cooperating end of its corresponding hammer rod constraining the latter to move rearwardly through a certain extent ythrough the downwardly positioned cam upon opening of the gun and through a greater extent through the upwardly positioned cam when the gun is being closed the lever being shifted operatively by the vhammer rod when the latter is urged forwardly by its spring; a sear adapted to engage each hammer for holding it in its rearmost position produced by the cam during the closing of the gun; and means for releasing said sear to cause operative movement of the hammer.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Golf Clubs (AREA)
US691755A 1945-08-31 1946-08-20 Cocking mechanism for shotguns Expired - Lifetime US2603021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR811564X 1945-08-31

Publications (1)

Publication Number Publication Date
US2603021A true US2603021A (en) 1952-07-15

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ID=9261427

Family Applications (1)

Application Number Title Priority Date Filing Date
US691755A Expired - Lifetime US2603021A (en) 1945-08-31 1946-08-20 Cocking mechanism for shotguns

Country Status (6)

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US (1) US2603021A (de)
BE (1) BE467355A (de)
CH (1) CH259152A (de)
DE (1) DE811564C (de)
FR (1) FR918641A (de)
GB (1) GB627024A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328635A (en) * 1978-04-26 1982-05-11 Olde Savannah Arms Company Firearm having multiple barrels movable together to one side
US5933998A (en) * 1997-02-26 1999-08-10 Franchi S.P.A. Break-action shotgun with a device for mass-production interchangeability of the barrels
US6711842B1 (en) 1997-10-31 2004-03-30 Daniel L. Chapman Firing mechanism
US20040144008A1 (en) * 2002-08-02 2004-07-29 Sergej Popikow Break-action firearm

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6470617B1 (en) * 2001-10-31 2002-10-29 Thomas M. Gregory Folding stock

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US847659A (en) * 1905-03-16 1907-03-19 Stevens Arms & Tool Company J Double-barreled firearm.
US975071A (en) * 1909-02-23 1910-11-08 John A Ricketts Breech-loading gun.
US1387207A (en) * 1917-06-08 1921-08-09 Hunter Arms Company Inc Firearm
FR836859A (fr) * 1938-04-20 1939-01-27 Mécanisme simplifié pour constituer les organes essentiels nécessaires à un fusil de chasse à un coup ou à une carabine
US2158149A (en) * 1935-10-17 1939-05-16 Western Cartridge Co Firearm
US2418611A (en) * 1944-07-10 1947-04-08 Charles A Young Ejector and cocking mechanism for firearms

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US847659A (en) * 1905-03-16 1907-03-19 Stevens Arms & Tool Company J Double-barreled firearm.
US975071A (en) * 1909-02-23 1910-11-08 John A Ricketts Breech-loading gun.
US1387207A (en) * 1917-06-08 1921-08-09 Hunter Arms Company Inc Firearm
US2158149A (en) * 1935-10-17 1939-05-16 Western Cartridge Co Firearm
FR836859A (fr) * 1938-04-20 1939-01-27 Mécanisme simplifié pour constituer les organes essentiels nécessaires à un fusil de chasse à un coup ou à une carabine
US2418611A (en) * 1944-07-10 1947-04-08 Charles A Young Ejector and cocking mechanism for firearms

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328635A (en) * 1978-04-26 1982-05-11 Olde Savannah Arms Company Firearm having multiple barrels movable together to one side
US5933998A (en) * 1997-02-26 1999-08-10 Franchi S.P.A. Break-action shotgun with a device for mass-production interchangeability of the barrels
US6711842B1 (en) 1997-10-31 2004-03-30 Daniel L. Chapman Firing mechanism
US20040144008A1 (en) * 2002-08-02 2004-07-29 Sergej Popikow Break-action firearm
US6820361B2 (en) * 2002-08-02 2004-11-23 S.A.T. Swiss Arms Technology Ag Break-action firearm

Also Published As

Publication number Publication date
GB627024A (en) 1949-07-26
DE811564C (de) 1951-08-20
CH259152A (fr) 1949-01-15
FR918641A (fr) 1947-02-13
BE467355A (de)

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