US2454885A - Detachable operating handle for retracting breech bolts - Google Patents

Detachable operating handle for retracting breech bolts Download PDF

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Publication number
US2454885A
US2454885A US766663A US76666347A US2454885A US 2454885 A US2454885 A US 2454885A US 766663 A US766663 A US 766663A US 76666347 A US76666347 A US 76666347A US 2454885 A US2454885 A US 2454885A
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United States
Prior art keywords
breech
bolt
handle
operating
chamber
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US766663A
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English (en)
Inventor
Jr Thomas R Robinson
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Marlin Firearms Co
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Marlin Firearms Co
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Publication date
Priority to BE484256D priority Critical patent/BE484256A/xx
Application filed by Marlin Firearms Co filed Critical Marlin Firearms Co
Priority to US766663A priority patent/US2454885A/en
Priority to GB20797/48A priority patent/GB654542A/en
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Publication of US2454885A publication Critical patent/US2454885A/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
    • F41A19/25—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
    • F41A19/30—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 in bolt-action 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/72—Operating handles or levers; Mounting thereof in breech-blocks or bolts

Definitions

  • the present invention relates in general to firearms of the type having a reciprocable breechclosing means and more especially to improved operating-means for manually retracting a breech-bolt in the receiver of a firearm.
  • An object of the invention is to provide a reciprocable breech-bolt with an improved bolt-operating handle in which is combined reliability and strength with ease of assembly, disassembly and low cost of manufacture.
  • a further object of the invention is to provide improved means for detachably securing a boltoperating handle to a breech-bolt.
  • a further object of the invention is to provide an improved detachable operating-handle for retracting a breech-bolt in the receiver of a firearm, the operating-handle being cooperatively associated with the receiver to prevent rotation of the bolt therein.
  • Fig. 1 is a side elevation of the receiver of a firearm having a reciprocable breech-bolt adapted to be manually retracted by the improved boltoperating handle of this invention and including a fragmentary portion of the barrel;
  • Fig. 2 is a sectional elevation of the side of the receiver and breech-bolt assembly shown in Fig. 1;
  • Fig. 3 is an end elevation of the receiver on section line 33 of Fig. 2;
  • Fig. 4 is an end elevation of the receiver on section line 44 of Fig. 2;
  • Fig. 5 is an enlarged fragmentary sectional elevation of the receiver and breech-bolt on section line 55 of Fig. 3;
  • Fig. 6 is a fragmentary sectional side elevation of the receiver
  • Fig. 7 is a sectional end view of the receiver on line 1 of Fig. 6;
  • Fig. 8 is aside elevation of the breech-bolt showin the operating-handle groove in the forward end thereof and fastening-means extending therein for removably securing the operatinghandle in the groove of the breech-bolt;
  • Fig. 9 is a perspective viewof the breech-bolt operating-handle taken from the top side theref;
  • Fig. 10 is a perspective view of the breech-bolt operating-handle taken from the underside thereof
  • Fig. 11 is a side elevation of a modified breechbolt including a modified operating-handle mounted in the forward end thereof;
  • Fig. 12 is an enlarged fragmentary sectional side elevation of the receiver of a firearm including the modified breech-bolt and operating-handle shown in Fig. 11;
  • Fig. 13 is an end elevation on line l3--l3 of Fig. 12;
  • Fig. 14 is a perspective view of the modified breech-bolt operating-handle.
  • the particular firearm shown is a self-loading repeating type of firearm comprising, in the main, a receiver indicated generally at l5 and. a barrel l6 fixedly secured to the forward end thereof.
  • the receiver l5 comprises a substantially-cylindrical member preferably formed from a suitable length of tubular steel stock [1.
  • the interior of the cylindrical receiver I5 is adapted to provide a breech-bolt chamber l8 of continuous length comprising a rear endportion of relatively-large diameter and a front end-portion of lesser diameter.
  • a breech-bolt chamber l8 of continuous length comprising a rear endportion of relatively-large diameter and a front end-portion of lesser diameter.
  • substantially-cylindrical sleeve or bushing l9 of relatively-thick wall section is inserted in the front end of the receiver and fixedly secured therein by a weld-joint or equivalent fasteningmeans.
  • the internal diameter of the longitudinal bore 20 of the bushing l9 hereinafter referred to as the forward chamber 2t! of the receiver [5
  • the rear chamber 2! of the receiver is substantially two-thirds the diameter of the rear unbushed portion of a receiver, the latter being hereinafter referred to as the rear chamber 2! of the receiver.
  • the rear end of the receiver is adapted to be closed by a plug 22, which is arranged to make a nice fit in the open rear end thereof and to be fixedly secured therein by a suitable fastening-means 23, as indicated in Figs. 1 and2.
  • the underside or bottom wall of the receiver is provided throughout the rear half of its length with suitable apertures, indicated generally at 24, which communicate with a trigger-plate, indicated generally at 25, in which the fire-control mechanism of the firearm is mounted.
  • the present invention is not concerned with the details of the fire-control mechanism, for any mechanism which is characteristic of a selfloading repeating firearm of the type shown herein may be used and, hence, the present description is not burdened with a disclosure and detailed description of the fire-control mechanism.
  • the forward chamber 20 of the receiver is adapted to support the rear end of the barrel i6 and to this end, the rear end of the barrel is reduced in diameter to provide a cylindrical wrist 26 arranged to make a snug fit in the open end of the forward chamberifi with the annular transverse shoulder 21 of the barrel it seating firmly against the forward face of the bushing 59.
  • a transverse pin 28 is provided for'positively-securing the barrel-wrist 26 in the bore of the forward chamber 29.
  • a receiver comprising a tubular member having a cylindrical bushing inserted and secured in one end thereof to form-a breech-bolt chamber of two diameters
  • a breech-bolt chamber of two diameters
  • the right side of the receiver iiii' isprovided with an ejectin-port'29 comprising a substantially-longitudinal slot having. elliptical ends 39, each provided with an inwardly-an'd-downwardly-sloping wall or bevel 3 I, as shown clearly in Fig. 5.
  • the ejection-port 29 intersects the forward chamber of the receiver substantially intermediate 'the opposite ends thereof, such that the rearwardly-sloping bevel 3
  • the breech-bolt may be turned out of a single piece of stock.
  • the longitudinal axial aperture 31 of the breech-bolt shank is adapted also to accommodate the actionreturn spring 39 and the striker-member on which the firing-spring 4
  • the forward end of the action-return spring 39 i is shownpen'gaged against an annular shoulder whereby ashortportionthereoflis exposed, as-indicated clearlyin.
  • Fig. 5. The forwardly-sloping beve135 .at the rearend of the ejection-portZS'is intersectedby the forward end ofa'longitudinal slot or key-Way 32, the longitudinal. axis'of which is-su bstantially coincident withthelongitudinal 40 Mounted' to reciprocatelongitudinally in the "receiver i5 is a breech-bolt, indicated generallyat 34' (see Fig.
  • a weld-joint is provided 'between the mutually-engaging peripheral surfaces of the neck 'BB-and'the longitudinal aperture '31 of theshank to'secure the two elements together as an-integrated unit.
  • the two-piece bolt is -quite 'success'fulj'both from the standpoint cular splitv band 53 anchoring-means of an extractor-claw 59 which lfihwhich', in the present embodiment, constitutes 3'5 is provided with a longitudinal axial aperture 46 which constitutes a counterbore of the firingpin aperturefr'l.
  • the latter extends through the breech-bolt stem 3'6 from its counterbore 46 forwardly and in an upwardly-inclined direction, as indicated in Figs. 3 and 5, to the face of the bolt, the forwardend of the firing-pin aperture being reduced in diameter as at $8 to slidingly support the needle 49 of the firing-pin'Sll.
  • the latter is dimensioned to make a slidingfit'in the longitudinal aperture l? and'forms an annular shoulder 5
  • the rear end of the firing-pin is provided with an enlarged head 5 which is accommodated in the counterbore 46 of the breech-bolt stem and is adapted to be struck by the'nose-portion 5'5 oftthe strikermember when the latter is released, asindicated in-Fig. 5.
  • the underside of the breech-bolt stem 35 isprovi'ded with a pair .o'flongitudinally-spaced parallel slots 56,.as indicated in Figs. 3 and 4,
  • the forward end of the breech bolt sterntt is encircled by a shallow groove .51 which is a'daptedto accommodate a cir-
  • the latter constitutes the is formed integrally with and substantially at right angles toaforwardly-extending reach of the anchoring-banda-M.
  • the extractor-claw 59 is adapted to be accommodated ina suitablenotchfi-l in the exposed portion of the stem 26 of the barrel-when the :breech-bolt isin. breech-closing position.
  • the manually-operated,--breech-bolt actuating-means or operating-handle of this invention is indicated generally at-'62 and comprises'a relatively-long narrow blade-like member substantially equal in width to'thewidth of thezlongitudinal keyway 32am thereceiver, sosas'to make sliding engagementtherein for the purpose hereinafter described.
  • Thelforwarden'd or reach 63 of the operating-handle is provided with a finger-grip 64 bentup'therefromand extending outwardly lat- -er.ally and'rearwardlyiat an angle of from 10 to 15 degrees, the outer extremity of the finger-grip 6l l'being suitably shaped toffacilitate gripping.
  • the tenon 65 is substantially U-shaped in cross section and its bottom is provided with an upset knee 6'! which is formed integrally therein and projects upwardly therefrom adjacent the forward end of the tenon.
  • the operating-handle 62 is adapted to be mounted on the breech-bolt stem 36 and to this end the latter is provided throughout its length with a longitudinal retaining-groove 68in its periphery, the forward end of the groove being relatively shallow as at 680 to receive the reach '63 of the operating-handle, and the rear end-pore stem 36, the rear end of the tenon 65 is adapted to abut the rear end wall or abutment H of the mortise which, in the present embodiment, constitutes the forward end of the shank 35 of the breech-bolt.
  • the operating-handle is securely held against relativelongitudinal movement on the stem 36 of the reciprocable breechbolt.
  • the breech-bolt is adapted to be assembled in the receiver by inserting the breech-bolt, stemend first, into the open rear end of the receiver, the longitudinal retaining-groove 68 of the stem being located on the stem in a position such that when the breech-bolt is fully assembled in the receiver, thegroove 68 will be substantially opposite the ejection-port 29 of the receiver and parallel to and immediately opposite the keyway 32 thereof, as shown clearly in Figs. 1 and 4.
  • a plane through the project laterally therethrough and its tenon 65 will slidingly engage in the keyway 32 of the receiver, as indicated clearly in Fig. 5.
  • the fastening-means comprises a substantially-cylindrical pin 12 which may be solid or tubular in construction, and which is of a resilient nature such that it may be flexed.
  • the pin 12 is adapted to be fixedly secured at its rear endin a longitudinal aperture or socket 13 which is formed in the forward end H of the breech-bolt shank 35 substantially parallel to the longitudinal axis thereof, the longitudinal axis of the pin-aperture 13 being substantially in axial alignment with the keyway 32 of the receiver.
  • the portion of the pin 12 which is forwardly of its rear end is hereinafter referred to as its reach and is adapted to extendforwardly through the keyway 32 into the longitudinal channel of the tenon 65 of the operating-handle 62.
  • the length of the reach of the pin 12 is such that its forward end is adapted to engage against the upset knee 6'l inthe bottom of the tenon 65 and to, be flexed outwardlylaterally thereby so as to exert an inwardly-directedforce on the tenon of the operating-handle soas to hold the tenon in the mortise of the breech-bolt.
  • the rear end of the pin 12 is normally held in the longitudinal aperture 13 by a drive-fit or equivalent fastening-means.
  • a radial groove 14 is milled or otherwise formed in the breech-bolt shank 35 adjacent the forward end thereof, the longitudinal axis of the groove 14 being parallel to and in the plane of the longitudinal axis of the aperture 13, and the depth of the groove being such that its bottom intersects the rear end of the longitudinal aperture 13. Consequently, a wedge or similar tool may be inserted into the radial groove against the rear end of the pin 12 for driving the latter forwardly out of its aperture 13.
  • pin 12 is shown as a separate element of the operating-handle, it is within the purview of this invention to form the pin or its equivalent as an integral part thereof.
  • the breach-bolt will be operated automatically. However, it may be reciprocated manually.
  • the marksman grasps the finger-grip 64 of the operating-handle and pulls rearwardly thereon. Since the tenon 65 of the latter is fixedly secured against longitudinal movement in the mortise of the breechbolt, a rearward pull upon the finger-grip will simultaneously move the operating-handle and breech-bolt in a rearward direction so as to retire the breech-bolt to its rearmost position in the receiver.
  • the breech-bolt may be advanced manually from its retired position in the receiver by thrusting forwardly on the finger-grip 64 of the operating-handle, the forward thrust on the latter being transmitted to the breech-bolt by engagement of the shoulder 66 of the operatinghandle with the front end wall I6 of the mortise 69. It should be pointed out, also, that mutual engagement of the shoulder 66 of the tenon and the wall Ill of the mortise prevents the operatinghandle from being thrown forwardly out of the breech-bolt as the latter slams forward into breech-closing position.
  • the operating-handle since the tenon 65 of the operating-handle makes longitudinal sliding engagement in the keyway 32 of the receiver and is precluded from transverse movement with respect to the breech-bolt by engagement of the sides of the tenon 65 with the corresponding laterally-spaced walls of the mortise 69 thereof, the operating-handle thereby effectively locks the breech-bolt against rotation in the receiver.
  • the removal of the operating-handle from the breech-bolt may be readily accomplished by grasping the finger-grip 64 thereof and pulling it outwardly laterally so as to lift the shoulder 66 of its tenon up over the front end wall 10 of the mortise against the resistance of the resilient pin 12. Thereupon, the operating-handle may be pushed forwardly relative to the breech-bolt out of its retaining-slot 68.
  • the breech-bolt opcrating-handle may be assembled on the breechbolt in the reverse order, that is to say, by inserting the rear end of the operating-handle beneath the forward free end of the pin 12 and pushing rearwardly on the finger-grip 64 until the rear end of the operating-handle and, in particular, its tenon 65 abut against the front wall H of the breech-bolt shank 35 and the shoulder 66-0f the tenon drops down behind the front end 9,, intermediate the first and second.
  • a firearm including in combinationza receiver having a breech-bolt chamber; a breechbolt reciprocably mounted in said-chamber,.-said breech-bolt having a longitudinal socket open in one direction; a transverseabutment remotefrom the open end of said longitudinal socket andfacing in a direction opposite-thereto; apair of laterally-spaced abutments; and a breech-bolt operating-handle having an element fitted in said socket and provided with a resilient reach, and an integral abutment remote frornthe socketfitting element and arranged to engage between the pair of laterally-spaced abutments of said breech-bolt, said socket-fitting element and reach being arranged to coact so as to hold the integral abutment of said bolt-operating ineans resiliently in juxtaposition to the transverse abutment of said breech-bolt.
  • a firearm including in combination: a receiver having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said breech-bolt having a, longitudinal socketopen in one direction; a transverseabutment remote from the open end of said longitudinal socket and facing in a direction opposite thereto; a second transverse abutment opposite said first abutment and a pair of laterally-spaced abutments; and a breech-bolt operating-handle having an element fitted in said socket and provided with a resilient reach, and an integral protuberance remote from the socket-fitting element, said integral protuberance being arranged to extend between the pair of laterally-spaced abutments and substantially intermediate the first and second transverse abutments of said breech-bolt, said socket-fitting element and reach being arranged to coact so as to hold the integral protuberance of said bolt-operating means resiliently in juxtaposition to the first and second transverse abutments of said breech-bolt
  • a firearm including inncombinationz a receiver having a breech-bolt chamber; anejec tion-port intersecting the forward end off said chamber and a longitudinal keywayr on the inside wall of said chamber intersecting the rear wall of said ejection-port; a breech-bolt reciprocably mounted in said chamber, said breech-bolt having a longitudinal socket open in one direction and a transverse abutment removed from the open end of said longitudinal socket'and facing 'in a direction opposite thereto; and a breech-bolt operating-handle arranged to slidingly engage ,in the longitudinal keyway ofsaid receiver to prevent rotation of said breech-bolt in the chamber thereof, said breech-bolt operating-handle having an element fitted in said socket and provided with a resilient reach, and an integral abutment remote from the socket-fitting element, said socket-fitting element and reach being arranged to coact so as to hold the integral abutment or said bolt-operating handle resiliently in juxtapos
  • a firearm including in combination: a receiver having a breech-boltchamber; a'breechbolt reciprocably mounted in said chamber, said breech-bolt having asocket adjacentits front end; a. breech-bolt operating-handle; means to connect said breech-bolt operating-handle to said breech-bolt comprising an integral protuberance of said operating-handle arranged to seat in said socket whereby a force exerted on said handle moves said breech-bolt longitudinally in said chamber; and fastening-means constructed and arranged to detachably secure said breech-bolt operating-handle to said breech-bolt, said fastening-means comprising a resilient-element of said operating-handle arranged to hold said integral protuberance resiliently in said socket.
  • a firearm including in combination: a receiver. having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said breech-bolt having a socket adjacent its front end; a breech-bolt operating-handle, means to connect said breech-bolt operating-handle to saidbreech-bolt comprising an integral protuberance of said operating-handle arranged to seat in said socket whereby a force exerted on said handle moves said breech-bolt longitudinally in said chamber; and fastening-means constructed and arranged to detachably secure said breech-bolt operating-handle to said breechbolt, said fastening-means comprising a resilientelement of said operating-handle secured at one end to said breech-bolt and arranged to exert a force transversely of said breech-bolt operatinghandle to hold said integral protuberance resiliently in said socket.
  • a firearm including in combination: a receiver having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end; a breech-bolt operating-handle; means to connect said breech-bolt operating-handle to said breech-bolt comprising a tenon of said operating-handle arranged to seat in said mortise, whereby a rearward pull on said handle retracts said breech-bolt in said chamber; and fasteningmeans constructed and arranged to detachably secure said breech-bolt operating-handle to said breech-bolt, said fastening-means comprising a resilient-member arranged to hold said tenon in said mortise.
  • a firearm including in combination: a receiver having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end; a breech-bolt operating-handle; means to connect said breech-bolt operating-handle to said breech-bolt comprising a tenon of said operatinghandle arranged to seat in said mortise, whereby a rearward pull on said handle retracts said breech-bolt in said chamber; and fasteningmeans constructed and arranged to detachably secure said breech-bolt operating-handle to said breech-bolt, said fastening-means comprising a resilient-member secured at one end to said breech-bolt and arranged to engage at its opposite free end against said breech-bolt operating-handle to hold said tenon in said mortise.
  • a firearm including in combination: a receiver having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end a breech-bolt operating-handle; means to connect said breech-bolt operating-handle to said breech-bolt comprising a tenon of said operatinghandle arranged to seat in said mortise, whereby -a rearward pull on said handle retracts said breech-bolt in said chamber; and fasteningmeans constructed and arranged to detachably secure said breech-bolt operating-handle to said breech-bolt, said fastening-means comprising a 11' fiexiblemember arranged to hold said tenon in said mortise.
  • a firearm including in combination: a receiver having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end; a breech-bolt operating-handle; means to connect said breech-bolt operating-handle to said breech-bolt comprising a tenon of said operatinghandle arrangedtoseat in said mortise, whereby a rearward pull on said handle retracts said breech-bolt in said chamber; and fasteningmeans constructed and arranged to detachably secure said breech-bolt operating-handle to said breech-bolt, said fastening-means comprising a flexible member fixedly secured at one end to said breech-bolt and arranged to engage at its opposite free end against said tenon to hold said tenon in said mortise.
  • a firearm including in combination; a receiver having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end; a breech-bolt operating-handle; means to .connect said breech-bolt operating-handle to said breech-bolt comprising a tenon of said op erating-handle having an upset knee and arranged to seat in said mortise, whereby a rearward pull on said handle retracts said breechbolt in said chamber; and fastening-means constructed and arranged to detachably secure said breech-bolt operating-handle to said breech-bolt, said fastening-means comprising a flexiblemember fixedly secured at one end to said breech-bolt and arranged to engage at'its opposite free end against the said upset knee of said tenon to hold said tenon in said mortise.
  • a firearm including in combination: a receiver having a breech-bolt chamber; a breechbolt reciprocalbly mounted in said chamber, said breech-bolt having a mortise adjacent its front end; a breech-bolt operating-handle; means to connect said breech-bolt operating-handle to' said breech-bolt comprising a tenon of saidoperating handle provided with a longitudinal groove and arranged toseat in said mortise, whereby a-rearward pull' on: said handle retracts said breechbolt in said chamber; and fastening-means constructed and arranged'to detachably secure said breech-bolt operating-handle to said breech-bolt, said fastening-means comprising a flexible member fixedly/secured at one end to said breech-bolt and arranged to extend into the longitudinal groove of said tenon and to engage at itsopposite free end against said tenon thereby to hold said tenon
  • a firearm including in combination: a receiver having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end; a breech-bolt operating handle; means to connect. said. breech-bolt operating-handle to said b-reechebolt comprising a tenon of'said operating-handle provided with a longitudinal groove having an upset knee in the bottom thereof; said tenon being arranged to seat in said mortise, whereby a rearward pull on said handle retracts said breech-bolt in said.
  • a firearm including in combination: a receiver having a breech-bolt chamber, an ejection-port intersecting the, forward end of said chamber and. a longitudinalkeyway on the inside wall of said chamber intersecting the rear wall of said ejection-port; a breech-bolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end substantially opposite said ejection-port; a breech-"bolt operating-handle; means-to connect said breech-bolt operating-handle to said breech-bolt comprising a tenon of said operating-handle arranged to seat in said' mortise and to slidingly engage inthe longitudinal keyway of said receiver to prevent rotation of said breech-bolt in the chamber thereof, said breech-bolt operating-handle also having a finger-grip projecting laterally therefrom through the said ejection-port, whereby a rearward pull on said finger-gripretracts said'breechbolt in said chamber
  • a firearm including in combination: a receiver having a breech-bolt chamber, an ejection-port intersecting the forward end of said chamber and a longitudinal keyway on the inside wall of said chamber intersecting the rear wall of said ejection-port; a breech-bolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end substantially opposite said ejection-port; a breech-bolt operating-handle; means to connect said breechbolt operating-handle to said breech-bolt com prising a tenon of said operating-handle arranged to seat in'said mortise and to slidingly engage in the longitudinal keyway of said receiver to preventrotation of said breech-bolt in the chamber thereof, said breech-bolt operating-handle also having a finger-grip projecting laterally therefrom through the said ejection-port, whereby a rearward pull on said finger-gripretracts said breech-bolt
  • a firearm including in combination: a receiver having, a breech-bolt chamber, an ejection-portintersecting the forward end of said chamber and. a longitudinal .keyway on the inside Wall of; said chamber intersectingthe rear wall of said.ejectionport; a breech-bolt reciprocably mountedin. saidchamber, said breech-bolt having a. mortise adjacent. its front.
  • breech-bolt operating-handle means to connect said breech-bolt operating-handle to said breechebolt comprising a channeled'tenon of said operating-handle arranged to seat in saidlmortise and to slidingly engage in thef-longitudinal .keyway, of said receiver to: mevent rotation of said.
  • said breech-bolt operating-handle also having a finger-gripprojecting laterally therefrom through the said ejection-port, whereby'a rearward pull onsaid finger-grip retracts said breech-bolt in said chamber; and fasteningmeans constructed and arranged to detachably securesaid breech-bolt operating-handle to said breech-"bolt, said fastening-means comprising a flexible member fixedly secured at one end to said breech-bolt in axial alignment with the said keyway of said receiver and arranged to extend forwardly through said keyway and into the channel of said tenon thereby to engage its opposite free end against said breech-bolt operatinghandle to hold said channeled tenon in said mortise.
  • a receiver having a breech-bolt chamber; an ejection-port intersecting the forward end of said chamber anda longitudinal keyway on the inside wall of said chamber intersecting the rear wall of said ejection-port;
  • a breech-bolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end substantially opposite said ejection-port;
  • a breech-bolt operatinghandle means toconnect said breec -bolt operating-handle to said breech-bolt comprising a channeled tenon of said operating-handle having an upset knee in the bottom thereof,said channeled tenon being arranged to seat in said mortise and to slidingly engage in the longitudinal keyway of said receiver to prevent rotation of said breechbolt in the chamber thereof, said breech-bolt operating-handle also having a finger-grip projecting laterally therefrom through t e said eiection-port, whereby a rear
  • fastening means constructed and arranged to detachably secure said breech-bolt operatinghandle to said breech-bolt
  • said fastening means comprising a flexible member fixedly secured at one end to said breech-bolt in axial alignment with the said keyway of said receiver and arranged to extend forwardly through said keyway and into the channel of said tenon thereby to engage-its opposite free end against the upset knee thereof to hold said channeled tenon in saidvmortise.
  • a firearm including in combination: a receiver having a breech-bolt chamber, an ejection-port intersecting the forward end of said chamber and a longitudinal keyway on the inside wall of said chamber intersecting the rear wall of said e ection-port; a breech-bolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end substantially opposite the said ejection-port; a breech-bolt operating-handle; means to connect said breech-bolt operating-handle to said breech-bolt comprising a tenon of said operating-handle arranged to seat in said mortise and to slidingly engage in the longitudinal keyway of said receiver to prevent rotation of said breech-bolt in the chamber thereof, said breech-bolt operating-handle also having a fingergrip projecting laterally therefrom through the said ejection-port whereby a rearward pull on said finger-grip retracts said breech-bolt in said chamber; fastening
  • a firearm including in combination: a receiver having a breech-boltchamber, an ejection-port intersecting the forward end of said chamber and a longitudinal keyway on the inside wall of said chamber intersecting the rear wall .of said ejection-port; a breech-bolt reciprocably mounted in said chamber, said breech-bolt having a mortise adjacent its front end substantially opposite said ejection-port; a breech-bolt operatinghandle; meanslto connect said breech-bolt operating-handle to said breech-bolt comprising a channeled tenon-of said operating-handle having anupset knee in the bottom thereof, said channeled tenon being arranged to seat in said mortise and to slidingly engage in the longitudinal keyway of said receiver to prevent rotation of said breechbolt in' the chamber thereof, said breech-bolt operwith the said keyway of said receiver, the opposite free end of said flexible member being adapted thereby to extend forwardly through said keyway and
  • a receiver havinga breech-bolt chamber comprising a rear end-portion and an axially-aligned front end-portion which is reduced in diameter and forms a transverse shoulder therewith, an ejection-portintersecting the front end-portion of said chamber and a longitudinal keyway on the inside wall of said transverse shoulder joining the rear end-portion of said chamber to said ejectionport; a breech-bolt reciprocably mounted in said chamber, said breech-bolt comprising a shankportion supported in the rear end-portion of said chamber and a stem-portion of reduced diameter supported in the reduced front end of said chamher, the said stem-portion of said breech-bolt having a, longitudinal mortise therein substantially opposite said ejection-port; a breech-bolt operating-handle; means to connect said breechbolt operating-handle to the stem-portion of said breech-bolt comprising a channeled tenon of said operating-handle having an
  • a .:rec,eiverthaving a breech-a beit chamber compris- -ing:a .rear end-portion -and an axially-aligned :front'endsportion whichis reduced in diameter and dorms aa'transverse :shoulder therewith, :an ejection port rintersecting the front end-portion of said :chamber and a longitudinal keyway on rthe'insidefwaH of said transverse shoulder join- :ing'therearend-portionof said chamber to said ejection-port; abreech-boltreciprocablymountrediin'said chamber, said breech-bolt comprising "azshank portionsupported-in the rear end-portioniof said chamber'and a stem-portion of reduced :diameter supported in the :reduced'front :en'dof said chamber, the said stem-portion of said breech-bolt having a
  • In'a'firearm,-inc1uding in'combination a receiver-having abreech-bolt chamber; a breechrboltreciprocably mounted in said chamber, said transverselyof: said breech-bolt operating-handle :to hold :said integral lug :resiliently in said radial socket.
  • a firearm including in combination: a receiver'having a breech-bolt chamber; a breechbolt reciprocably mounted in said chamber, said .vbreech ibolt "having a longitudinal socket open in OIIBFdiIGCtiOH' and "a radial socket remote'from .the open end ofasaid longitudinal socket; and'a cbreech-bolt operating-handle comprising an elongated membershaving a rearwardly-extend- 'in'gstem: engaged in' the longitudinal-socket of said breech--:bolt and provided with a resilient reach,

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US766663A 1947-08-06 1947-08-06 Detachable operating handle for retracting breech bolts Expired - Lifetime US2454885A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE484256D BE484256A (enrdf_load_stackoverflow) 1947-08-06
US766663A US2454885A (en) 1947-08-06 1947-08-06 Detachable operating handle for retracting breech bolts
GB20797/48A GB654542A (en) 1947-08-06 1948-08-06 Improvements relating to breach bolt operating means for firearms

Applications Claiming Priority (1)

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US766663A US2454885A (en) 1947-08-06 1947-08-06 Detachable operating handle for retracting breech bolts

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US2454885A true US2454885A (en) 1948-11-30

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BE (1) BE484256A (enrdf_load_stackoverflow)
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601808A (en) * 1948-09-15 1952-07-01 Howard R Clarke Breech bolt lock and actuator for firearms
US3153295A (en) * 1959-05-19 1964-10-20 Harold D Allyn Receiver-barrel assembly with stock and trigger housing
US3270617A (en) * 1965-03-22 1966-09-06 Ralph V Seymour Shell catcher attached to the reciprocable bolt of a firearm
WO2003031899A1 (en) * 2001-10-08 2003-04-17 Bore Science Technologies, L.L.C. Self-locking firearm bolt action
US20040103777A1 (en) * 2002-12-02 2004-06-03 Moore Kim Ira Semiautomatic or automatic gun
US7231861B1 (en) * 2004-12-16 2007-06-19 Gauny Justin A Firearm modification assembly
US20100000396A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US8117954B1 (en) 2008-11-26 2012-02-21 Davis Douglas P Firearm modification kit
US8266998B1 (en) 2008-11-26 2012-09-18 Doug Davis Firearm modification kit
RU2521911C1 (ru) * 2012-10-29 2014-07-10 Открытое акционерное общество "Концерн "Калашников" Затвор стрелкового оружия с отъемной рукояткой
US8899138B2 (en) 2011-09-08 2014-12-02 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US8997620B2 (en) 2012-03-09 2015-04-07 Adcor Industries, Inc. Handle assembly for charging a direct gas impingement firearm
US9658009B1 (en) * 2016-03-11 2017-05-23 Lewis Karl Vankeuren, III Bolt handle modification system and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601808A (en) * 1948-09-15 1952-07-01 Howard R Clarke Breech bolt lock and actuator for firearms
US3153295A (en) * 1959-05-19 1964-10-20 Harold D Allyn Receiver-barrel assembly with stock and trigger housing
US3270617A (en) * 1965-03-22 1966-09-06 Ralph V Seymour Shell catcher attached to the reciprocable bolt of a firearm
WO2003031899A1 (en) * 2001-10-08 2003-04-17 Bore Science Technologies, L.L.C. Self-locking firearm bolt action
US20040103777A1 (en) * 2002-12-02 2004-06-03 Moore Kim Ira Semiautomatic or automatic gun
US6782791B2 (en) * 2002-12-02 2004-08-31 Kim Ira Moore Semiautomatic or automatic gun
US7231861B1 (en) * 2004-12-16 2007-06-19 Gauny Justin A Firearm modification assembly
US20140224103A1 (en) * 2008-07-01 2014-08-14 Adcor Industries, Inc. Firearm Having A Handle Assembly For Charging And Forward Assist
US20100000396A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US8156854B2 (en) * 2008-07-01 2012-04-17 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US9109848B2 (en) * 2008-07-01 2015-08-18 Adcor Industries, Inc. Firearm having a handle assembly for charging
US8561517B2 (en) 2008-07-01 2013-10-22 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US8117954B1 (en) 2008-11-26 2012-02-21 Davis Douglas P Firearm modification kit
US8266998B1 (en) 2008-11-26 2012-09-18 Doug Davis Firearm modification kit
US8899138B2 (en) 2011-09-08 2014-12-02 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US8997620B2 (en) 2012-03-09 2015-04-07 Adcor Industries, Inc. Handle assembly for charging a direct gas impingement firearm
RU2521911C1 (ru) * 2012-10-29 2014-07-10 Открытое акционерное общество "Концерн "Калашников" Затвор стрелкового оружия с отъемной рукояткой
US9658009B1 (en) * 2016-03-11 2017-05-23 Lewis Karl Vankeuren, III Bolt handle modification system and method

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Publication number Publication date
GB654542A (en) 1951-06-20
BE484256A (enrdf_load_stackoverflow)

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