US2474456A - Cocking mechanism for bolt action rifles - Google Patents

Cocking mechanism for bolt action rifles Download PDF

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Publication number
US2474456A
US2474456A US732283A US73228347A US2474456A US 2474456 A US2474456 A US 2474456A US 732283 A US732283 A US 732283A US 73228347 A US73228347 A US 73228347A US 2474456 A US2474456 A US 2474456A
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US
United States
Prior art keywords
lever
bolt
trigger
tumbler
spring
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
US732283A
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English (en)
Inventor
Barnett Joseph Henry
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.)
J H BARNETT SON AND Co LT
J H BARNETT SON AND Co Ltd
Original Assignee
J H BARNETT SON AND Co LT
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.)
Filing date
Publication date
Application filed by J H BARNETT SON AND Co LT filed Critical J H BARNETT SON AND Co LT
Application granted granted Critical
Publication of US2474456A publication Critical patent/US2474456A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C7/00—Shoulder-fired smallarms, e.g. rifles, carbines, shotguns
    • F41C7/06—Lever-action guns, i.e. guns having a rocking lever for loading or cocking
    • 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
    • F41A19/16—Adjustable firing mechanisms; Trigger mechanisms with adjustable trigger pull

Definitions

  • This invention has reference to improvements relating to rifles and has for its object to provide a simple bolt action mechanism for rifies which makes for comfort in use and ease of operation.
  • the improved bolt action mechanism for rifles is chara-cterised in that the movement of the bolt for loading and extraction operations is effected by a cooking lever which is mounted on the underside of the rifle and which is associated as a unit with a tumblerlever the tumbler-lever effecting a cocking of the firing mechanism when the said cooking lever is operated for this purpose preparatory to loading.
  • the improved bolt action mechanism for riiies is characterised in that the movement of the bolt to permit loading and for extraction is effected by a cooking lever which is mounted on the underside of the rilie and in that the bolt and the lever are provided with complementary surfaces which co-act to provide a wedging action for effecting a positive locking of the bolt when the said bolt is in the breech closing position.
  • the invention also resides in a bolt action mechanism for ries constructed, arranged and adapted for use substantially as will be described hereinafter.
  • Figure 1 is a view mainly in vertical section of a fitted action body for a small bore rander as aforesaid showing the relationship of the parts immediately preparatory to firing.
  • Figure 2 is a view similar to Figure 1, but showing the mechanism in the position which it assumes when the gun is red.
  • Figure 3 is a vertical sectional view taken substantially on the line 3-3 of Figure 2.
  • Figure 4 is a vertical sectional View taken substantially on the line 4-4 of Figure 2.
  • the upper part of the action body 4 is provided with a slideway 5 within which is mounted a bolt 6 which embodies a ring mechanism and an ejector mechanism of known kind the ring mechanism incorporating a firing pin 'I and a spring 8.
  • the ejector mechanism is actuated by an ejector cam Ila, the remainder of the ejector mechanism not being shownbecause no other portion thereof engages or cooperates with the cooking and firing mechanism constituting the invention.
  • a lever I2 Fulcrumed on a bush Illa mounted on a horizontal pin I0 passed through holes in the side plates 4a and arranged on the underside of the action body 4 and to the rear of the breech II is a lever I2 hereinafter called the cooking lever, the longer arm I2a of which is curved so as to conform to the shape of the adjacent part of the rifle butt indicated by the chain line A in Figure 1.
  • the said longer arm I2a is in contact with the rifle butt when in the ring position, see full line position Figure 1.
  • the shorter arm of the said cooking lever I2 is forked as at I2b and the limbs of the forked section of the cocking lever I2 are provided at the upper ends with waisted ball headed portions I 2c which engage Within complementary slots 6a formed at each side of the central portion of the bolt 6.
  • the slots 6a are provided at the forward end with inclined cam faces 6b for a purpose to be described hereinafter.
  • a tumbler lever I3 Also fulcrumed on the bush Illa and located between the limbs of the forked section
  • the lower end of the intermediate lever I4 co-operates with a shouldered portion I'5a carried by a trigger lever I5.
  • the trigger arm I5b itself depends below the side plates 4a. and is enclosed by a trigger guard I6.
  • a Wound spring Ve' one end of which is hooked beneath the ejector cam I'Ia and the other end of which bears against the intermediate lever I4.
  • a sensitive spring pressed thimble plunger I8 which is slidably mounted in a recess I 5c formed in an upstanding part I 5d of the trigger lever I5 bears on the opposite side of the depending and longer arm of the intermediate lever I4, adjacent the lower end thereof.
  • a spring pressed thimble plunger I9 the lower end of the spring 20 located within which is in abutment with a ange on the head of a vertically arranged -slidable pin 2
  • this pin 22 has at its opposite end also a wedge face 2-2b which cooperates with the taper end 23a ofa vertically arranged slidable pin 23 the upper end whereof is in abutment with the lower end of an adjusting screw 24 mounted within a tapped hole in the block Ia forming part of the trigger guard I6;
  • the spring Ia associated with the plunger I8 and the oppositely acting spring I1 substantially balance one another but with a ⁇ slightipreponderance to the spring I8a so that; when free of iniiuence of the spring 8, the spring I8a urges the intermediate lever I4 in a countercloclgwise direction.
  • the spring 8 associated with the firing pin 1 is considrably stronger than the spring IBa and, consequently, the tumbler-lever I3 tends tourge the intermediate lever I4 in a clockwise direction.
  • , 22 and 23 admits of the adjustment of the plunger I9 so as to enable the trip resistance of the trigger arm b to be adjusted to-y suit individual requirements and to ensure that after setting the said trip resistance remains constant.
  • the tumbler lever I3 incorporates an upstanding-waisted ball headed portion I3b which is engaged within a slot 'la in the central portion of the firing pin 1.
  • the slot 'Ia is but slightly longer than-the maximum dimensions of the portion I3b offthe tumbler-lever, having flat transverse end walls ⁇ against which the tumbler-lever headbears during.- cocking and ring.
  • a stop pin is provided for determining the lim-'it of the forward movement permitted to the lower arm of the intermediate lever I4.
  • the intermediate lever Ill continues to swing in a counterclockwise direction until its movement is stopped by engagement with the stop pin 25.
  • the cooking lever I2 is swung, its bifurcated arms and the tumbler leverl I3 both con-tinue to swingI around he bushing Illa.
  • the head 13b of the tumble-r lever I3 presses against the rearward end-of the slot la moving the firing pin 'lbackwairld and compressing the spring 8.
  • the rearmost edges of the heads I2c of the cocking lever arms engage the rear edges oftheir respective slots Ea in the bolt E. Further movement of the cooking lever then moves the bolt bodily backwards withdrawing it from the' breech and permitting the ejector cam I'Ia tol-engage the ejector mechanism to eject the oldspent cartridge.
  • 12 ismovedthe remaining distance totheposition shown the solid lines, which moves the-bolt to close-thebreech and eventually swingsthe upper eri'dsl ofthe heads [2c of the cooking lever I2 against the cam faces 6b of the slot- Bal, wedgingthebolt inl breechclosing position.
  • trigger lever l5 except for the fact that the intermediate lever M has the elongated slot Mc, which allows it to move upwardly relative to the pin Mb suiiciently to permit the trigger 15b to move forwardly a slight distance.
  • a bolt action mechanism as hereinbefore described is simple in construction and efficient and makes for the comfort of a marksman particularly in the case where such an individual is engaged in a shooting competition.
  • a cooking mechanism comprising, in combination,

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Telescopes (AREA)
  • Baking, Grill, Roasting (AREA)
US732283A 1946-03-12 1947-03-04 Cocking mechanism for bolt action rifles Expired - Lifetime US2474456A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7597/46A GB606009A (en) 1946-03-12 1946-03-12 Improvements relating to rifles

Publications (1)

Publication Number Publication Date
US2474456A true US2474456A (en) 1949-06-28

Family

ID=9836170

Family Applications (1)

Application Number Title Priority Date Filing Date
US732283A Expired - Lifetime US2474456A (en) 1946-03-12 1947-03-04 Cocking mechanism for bolt action rifles

Country Status (4)

Country Link
US (1) US2474456A (enrdf_load_stackoverflow)
BE (1) BE471803A (enrdf_load_stackoverflow)
FR (1) FR968678A (enrdf_load_stackoverflow)
GB (1) GB606009A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765562A (en) * 1953-02-20 1956-10-09 Savage Arms Corp Trigger mechanism for bolt action firearms
US2965993A (en) * 1958-01-27 1960-12-27 Emmett B Perrine Selective trigger pull mechanism
US2984037A (en) * 1959-02-06 1961-05-16 High Standard Mfg Corp Spring adjustment for firearms
US3084833A (en) * 1961-07-14 1963-04-09 Richard M Kline Valve operator tension mechanism
US3142926A (en) * 1962-06-27 1964-08-04 Olin Mathieson Trigger with adjustable screw and stud therein
US3188764A (en) * 1963-03-07 1965-06-15 Oscar E Harding Trigger pull control for double action firearms
WO1997025580A1 (en) * 1996-01-04 1997-07-17 Sturm, Ruger & Company, Inc. Hammer cocking and bolt locking system for lever operating firearm
US6131324A (en) * 1998-11-30 2000-10-17 Jewell; Arnold W. Adjustable dual stage trigger assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248915B (en) * 1982-05-08 1992-09-16 Heckler & Koch Gmbh Self-loading hand weapon

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US215557A (en) * 1879-05-20 Improvement in magazine fire-arms
US350098A (en) * 1886-10-05 Salvator
US458704A (en) * 1891-09-01 Breech-loading gun
US537958A (en) * 1895-04-23 Ney ashton
US551143A (en) * 1895-12-10 Magazine firearm
US2118536A (en) * 1935-05-27 1938-05-24 J M & M S Browning Company Firearm
US2125571A (en) * 1935-01-10 1938-08-02 Ernest F Jacobson Gun
US2249231A (en) * 1937-04-19 1941-07-15 John B Smith Trigger mechanism

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US215557A (en) * 1879-05-20 Improvement in magazine fire-arms
US350098A (en) * 1886-10-05 Salvator
US458704A (en) * 1891-09-01 Breech-loading gun
US537958A (en) * 1895-04-23 Ney ashton
US551143A (en) * 1895-12-10 Magazine firearm
US2125571A (en) * 1935-01-10 1938-08-02 Ernest F Jacobson Gun
US2118536A (en) * 1935-05-27 1938-05-24 J M & M S Browning Company Firearm
US2249231A (en) * 1937-04-19 1941-07-15 John B Smith Trigger mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765562A (en) * 1953-02-20 1956-10-09 Savage Arms Corp Trigger mechanism for bolt action firearms
US2965993A (en) * 1958-01-27 1960-12-27 Emmett B Perrine Selective trigger pull mechanism
US2984037A (en) * 1959-02-06 1961-05-16 High Standard Mfg Corp Spring adjustment for firearms
US3084833A (en) * 1961-07-14 1963-04-09 Richard M Kline Valve operator tension mechanism
US3142926A (en) * 1962-06-27 1964-08-04 Olin Mathieson Trigger with adjustable screw and stud therein
US3188764A (en) * 1963-03-07 1965-06-15 Oscar E Harding Trigger pull control for double action firearms
WO1997025580A1 (en) * 1996-01-04 1997-07-17 Sturm, Ruger & Company, Inc. Hammer cocking and bolt locking system for lever operating firearm
US6131324A (en) * 1998-11-30 2000-10-17 Jewell; Arnold W. Adjustable dual stage trigger assembly

Also Published As

Publication number Publication date
GB606009A (en) 1948-08-04
FR968678A (fr) 1950-12-01
BE471803A (enrdf_load_stackoverflow)

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