US3416253A - Guide means for bolt-action firearms - Google Patents

Guide means for bolt-action firearms Download PDF

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Publication number
US3416253A
US3416253A US594209A US59420966A US3416253A US 3416253 A US3416253 A US 3416253A US 594209 A US594209 A US 594209A US 59420966 A US59420966 A US 59420966A US 3416253 A US3416253 A US 3416253A
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US
United States
Prior art keywords
bolt
breech bolt
grooves
guide means
action
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
US594209A
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English (en)
Inventor
Larsson Sven Gunnar Olof
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.)
Husqvarna Vapenfabriks AB
Original Assignee
Husqvarna Vapenfabriks AB
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 Husqvarna Vapenfabriks AB filed Critical Husqvarna Vapenfabriks AB
Application granted granted Critical
Publication of US3416253A publication Critical patent/US3416253A/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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/30—Interlocking means, e.g. locking lugs, screw threads
    • 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
    • F41A15/12—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 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
    • F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/18—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks hand-operated
    • F41A3/22—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks hand-operated the locking being effected by rotating the operating handle or lever transversely 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
    • F41A3/66—Breech housings or frames; Receivers

Definitions

  • a bolt-action firearm particularly a repeating rifle, comprising a breech bolt having two locking lugs, preferably dovetailed, and housed in a receiver provided with longitudinal grooves for the lugs, an obliquely upwardly directed loading opening intersecting one of the grooves; guide means provided for guiding the breech bolt past the intersecting loading opening and comprising a tongue and a longitudinal slot provided on each of the lug and the groove being intersected.
  • This invention relates to bolt-action firearms, particularly repeating rifles, of the type comprising a breech bolt rotatable and axially displaceable in a receiver having two diametrically and horizontally opposite guide grooves for two lateral locking lugs on the head of the breech bolt as well as an obliquely upwardly directed loading opening interrupting one of said grooves.
  • the breech bolt partly looses its guidance when it is partly uncovered by the loading opening in the course of retraction of the breech bolt. This may i.a. result in jamming of the breech bolt, particularly in case its handle, as is natural, is biased in the same turning direction as when starting to open the breech bolt.
  • FIG. 1 is a side view of the forepart of the bolt-action
  • FIG. 2 shows a cross-section on line 2-2 in FIG. 1,
  • FIG. 3 is a section on line 3-3 in FIG. 1.
  • the bolt-action shown comprises a receiver 4 including the upper part 5 of a cartridge magazine which can be filled from above, through an obliquely upwardly directed loading opening 6, and two diametrically and horizontally opposite grooves 7, 8 for two locking lugs 9, 10 on the head of a substantially cyindrical breech bolt 11 with handle 12.
  • the breech bolt is shown in a partly retracted position wherein its head is partly uncovered by the loading opening 6, and it has forwardly a lateral recess 13 for an ejector not shown, mounted in the receiver rearwardly of the opening 6, for ejecting the cartridge shells obiquely upwardly and to the left in FIG. 1.
  • the lugs 9, 10 are in wellknown locking engagement in front of locking surfaces in the receiver, lug 10 being then situated above lug 9.
  • a guide tongue 16 is arranged radially at the underside 15 of lug 9 which tongue in the breech bolt position shown engages a longitudinal slot or groove 18 provided in the receiver below the lower edge 17 of opening 6, said groove having the same length as the grooves 7, 8.
  • the lugs and the tongue do not reach the bottom of the grooves 7, 8, 18.
  • the described execution of the locking lugs and their guide grooves provides for a good transversal guidance of the breech bolt head also when this is situated in the loading opening 6 and also in case the lugs are given a considerable play in the grooves.
  • the dovetailing primarily acts' horizontally, the guide tongue 16 vertically.
  • Such a guide tongue can be provided to advantage also in known boltactions without dovetailing of the forward locking lugs.
  • the cartridge shell extractor is prefera'by built-in in the locking lug 9.
  • it comprises a part 21 having an oblique gripping edge 20, guided radially in a lateral recess 22 in the breech bolt head and rigidly secured to the forward, transversely movable end of a round rodspring 23 positioned in a longitudinal, forwardly widening bore 24 in the breech bolt and fixedly mounted at its opposite end, the extractor 21 being thus movable radially outwardly against the action of rod-spring 23.
  • It may have a semicircular flange 25 in a corresponding transverse slot in the bottom of recess 22 and a chamfered surface 26 for the cartridge shell bottom 27.
  • a bolt-action firearm comprising a receiver having diametrically and horizontally opposite longitudinal first and second guide grooves therein and an obliquely upwardly directed loading opening interrupting said first groove, a breech bolt rotatable and axially displaceable in said receiver and including a head having first and second oppositely directed locking lugs slidably engaging said first and second grooves respectively during an axial displacement of said breech bolt, an operating handle fastened to said breech bolt and positioned at the same side of the receiver as said first groove, and guide means comprising a longitudinal slot in said first groove, and a tongue on said first lug, said tongue engaging said slot in all retracted positions of said breech bolt, to prevent said first lug from being lifted in the passage of said interruption in said first groove, when said handle is operated in a combined rotating and axial motion in order to advance or retract the breech bolt.
  • a firearm as claimed in claim 2 in which the longitudinal sides of one of said lugs are situated in the same axial planes intersecting the axis of said breech bolt as the longitudinal sides of the other locking lug.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Pens And Brushes (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US594209A 1965-11-15 1966-11-14 Guide means for bolt-action firearms Expired - Lifetime US3416253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1469365 1965-11-15

Publications (1)

Publication Number Publication Date
US3416253A true US3416253A (en) 1968-12-17

Family

ID=20299503

Family Applications (1)

Application Number Title Priority Date Filing Date
US594209A Expired - Lifetime US3416253A (en) 1965-11-15 1966-11-14 Guide means for bolt-action firearms

Country Status (4)

Country Link
US (1) US3416253A (de)
BE (1) BE689680A (de)
DE (2) DE1553873A1 (de)
GB (1) GB1164634A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668800A (en) * 1970-08-24 1972-06-13 Sturm Ruger & Co Rifle bolt with a removably secured stabilizing lug thereon
US3710492A (en) * 1970-12-02 1973-01-16 Emhart Corp Travel guide for bolt action rifles
WO1996035917A1 (en) * 1995-05-11 1996-11-14 Sako Oy Breech mechanism for bolt-action firearms
US6178682B1 (en) * 1996-06-07 2001-01-30 Steyr-Daimler-Puch Aktiengesellschaft Repeating rifle with semirigidly lockable bolt action and striking-pin safety
WO2002075234A1 (en) * 2001-03-05 2002-09-26 Sako Oy Breech device for bolt-action firearms

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313656B (en) * 1996-05-31 2001-01-10 Craig M Whitsey Bolt head conversion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1161172A (en) * 1915-05-07 1915-11-23 Rudolf Von Frommer Firearm.
US2139648A (en) * 1936-12-24 1938-12-06 Walter H Chambers Gun
US2350477A (en) * 1943-04-13 1944-06-06 Western Cartridge Co Extractor-and-ejector assembly for firearms
US2761234A (en) * 1953-07-28 1956-09-04 Walter A R Bradley Turning bolt lever action rifle
US3274724A (en) * 1965-06-01 1966-09-27 John H Brandt Rifle bolt mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1161172A (en) * 1915-05-07 1915-11-23 Rudolf Von Frommer Firearm.
US2139648A (en) * 1936-12-24 1938-12-06 Walter H Chambers Gun
US2350477A (en) * 1943-04-13 1944-06-06 Western Cartridge Co Extractor-and-ejector assembly for firearms
US2761234A (en) * 1953-07-28 1956-09-04 Walter A R Bradley Turning bolt lever action rifle
US3274724A (en) * 1965-06-01 1966-09-27 John H Brandt Rifle bolt mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668800A (en) * 1970-08-24 1972-06-13 Sturm Ruger & Co Rifle bolt with a removably secured stabilizing lug thereon
US3710492A (en) * 1970-12-02 1973-01-16 Emhart Corp Travel guide for bolt action rifles
WO1996035917A1 (en) * 1995-05-11 1996-11-14 Sako Oy Breech mechanism for bolt-action firearms
US6000161A (en) * 1995-05-11 1999-12-14 Sako Oy Breech mechanism for bolt-action firearms
US6178682B1 (en) * 1996-06-07 2001-01-30 Steyr-Daimler-Puch Aktiengesellschaft Repeating rifle with semirigidly lockable bolt action and striking-pin safety
WO2002075234A1 (en) * 2001-03-05 2002-09-26 Sako Oy Breech device for bolt-action firearms
US20040168362A1 (en) * 2001-03-05 2004-09-02 Juha Aalto Breech device for bolt action firearms
US6978709B2 (en) 2001-03-05 2005-12-27 Sako Oy Breech device for bolt action firearms

Also Published As

Publication number Publication date
DE1553873A1 (de) 1971-09-09
DE6604770U (de) 1970-02-12
BE689680A (de) 1967-04-14
GB1164634A (en) 1969-09-17

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