US2893153A - Adjustable barrel and receiver connection - Google Patents

Adjustable barrel and receiver connection Download PDF

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Publication number
US2893153A
US2893153A US564248A US56424856A US2893153A US 2893153 A US2893153 A US 2893153A US 564248 A US564248 A US 564248A US 56424856 A US56424856 A US 56424856A US 2893153 A US2893153 A US 2893153A
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US
United States
Prior art keywords
receiver
barrel
hanger
adjustable
connection
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
US564248A
Inventor
Hailston Ellis William
Harold L Hameister
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.)
Remington Arms Co LLC
Original Assignee
Remington Arms Co LLC
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
Priority to US48272655 priority Critical patent/US2751702A/en
Priority to BE544493D priority patent/BE544493A/en
Application filed by Remington Arms Co LLC filed Critical Remington Arms Co LLC
Priority to US564248A priority patent/US2893153A/en
Priority to US564249A priority patent/US2824400A/en
Application granted granted Critical
Publication of US2893153A publication Critical patent/US2893153A/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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/48—Barrel mounting means, e.g. releasable mountings for replaceable barrels
    • F41A21/485—Barrel mounting means, e.g. releasable mountings for replaceable barrels using screws or bolts
    • 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
    • F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
    • F41A3/40—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes mounted on the bolt
    • 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
    • F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
    • F41A3/42—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes hand-operated
    • 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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/06—Feeding of unbelted ammunition using cyclically moving conveyors, i.e. conveyors having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke
    • F41A9/09—Movable ammunition carriers or loading trays, e.g. for feeding from magazines
    • F41A9/10—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging
    • F41A9/13—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane
    • F41A9/16—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis
    • F41A9/17—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm
    • F41A9/18—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm feeding from a tubular magazine under the barrel
    • 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
    • F41C7/02—Pump-action guns, i.e. guns having a reciprocating handgrip beneath the barrel for loading or cocking

Definitions

  • This invention relates to an improved breech loading magazine firearm of the type characterized by a rearwardly sliding breech block.
  • this invention relates to an improved connection for securing a rearm barrel to a rearm receiver.
  • An object is to provide a barrel and receiver connection which is adjustable to permit exact positioning of a rearrn barrel with respect to a iirearm receiver.
  • a further object is to provide an adjustable barrel and receiver connection of great rigidity.
  • a further object is to provide a barrel and receiver connection adjustable to initially position a barrel within a receiver, which connection, once adjusted, will permit the barrel and receiver to be taken down and be reassembled in exact relative position without further adjustment.
  • Fig. 1 is a longitudinal vertical sectional view through a firearm embodying our invention.
  • Fig. 2 is an enlarged partial longitudinal vertical view, partially in section, including only the barrel and receiver to more clearly show the barrel and receiver connection of our invention.
  • our nvention is embodied in a slide action magazine firearm having a barrel 1, a receiver 2 and a buttstock 3 as basic structural units.
  • a re control unit 4 is supported in the receiver and is of the type disclosed in U.S. Patent No. 2,675,638, issued on April 20, 1954, to L. R. Crittendon and used commercially by applicants assignee.
  • a breech bolt 5 is mounted for reciprocation in the receiver, and is shown in Fig. l in closed position.
  • Beneath the barrel 2 a tubular magazine 6 is supported by hardened hangers secured to the barrel.
  • the hardened hanger 11 which is a part of our invention, supports the breech end of the tubular magazine in a bore formed in the hanger.
  • the receiver 2 of this construction is conveniently an aluminum die casting, permitting a relatively intricate shape with a minimum of machining. Great economy in the use of material is obtained by forming the receiver by die casting as opposed to machining in which a large amount of metal is reduced to useless chips.
  • the barrel 1 extends for a considerable distance into the receiver 2.
  • the breech bolt 5 is provided with a cartridge head engaging stem 14 which reciprocates in a closely fitting bolt stem guideway 12 formed in the barrel concentric to the barrel chamber 13.
  • a cartridge head engaging stem 14 which reciprocates in a closely fitting bolt stem guideway 12 formed in the barrel concentric to the barrel chamber 13.
  • Barrel 1 has secured rigidly thereto a hardened foreend hanger 11.
  • a bore formed in the hanger 11 receives the breech end of the tubular magazine 6 and supports it in alignment with a cartridge track 17 formed in a forward extension 2a of the receiver 2.
  • the bushing 10 may be fixed in the receiver extension 2a by staking or other means.
  • the relatively large surface area of the bushing 10 in contact with the receiver extension 2a effectively increases the load bearing area of the receiver.
  • the increase in load bearing area in the receiver insures that the receiver not be deformed by stresses imposed on the barrel in the use ot the rifle, and enhances the rigidity of the construction.
  • adjustable means *for securing said barrel to said receiver in desired longitudinal position comprising a threaded hanger dependent from said barrel, a forward extension on said receiver underlying said hanger and having a hole in substantial alignment with the dependent end of said hanger, a bushing rotatably disposed in said hole and having an opening therethrough which isl eccentric to said hole, and a screw disposed in said bushing opening and engaged with said threaded hanger.
  • a firearm having a receiver; a reciprocable breech bolt in said receiver movable to a iixed forward locking position, and an assembly extending forwardly from said receiver, comprising a barrel and a magazine tube coextensive with and underlying said barrel; said assembly being longitudinally positionable in said receiver relative to said breech bolt for adjustment of head space; the improvement of adjustable means for securing said assembly in said receiver for proper head space comprising a hanger dependent from said barrel and having thereon support means for said magazine tube and a Y References Cited in the le of this patent UNITED STATESI PATENTS Goodman Nov. 20, 1883 Hartley et al July 22, 1902 Fay May 31, 1904 Lowe Feb. 13, 1945

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

July 7', 1959 E. w. HAlLsToN ETAL 2,893,153
'ADJUSTABLE BARREL AND RECEIVER CONNECTION Original Filed April 19, 1955 ADJUSTABLE BARREL AND RECEIVER CONNECTION 'Ellis William Hailston and Harold L. Hameister, Ilion, N.Y., assignors to Remington Arms Company, Inc., Bridgeport, Conn., a corporation of Delaware Original application January 19, 1955, Serial No. 482,726,
now Patent No. 2,751,702, dated June 26, 1956. Di-
vided and this application February 8,1956, Serial No. 564,248
2 Claims. (Cl. 42-75) This application is a division of our pending application, Serial Number 482,726, tiled January 19, 1955, now Patent No. 2,751,702, issued June 26, 1956.
This invention relates to an improved breech loading magazine lirearm of the type characterized by a rearwardly sliding breech block.
More particularly, this invention relates to an improved connection for securing a rearm barrel to a rearm receiver.
An object is to provide a barrel and receiver connection which is adjustable to permit exact positioning of a rearrn barrel with respect to a iirearm receiver.
A further object is to provide an adjustable barrel and receiver connection of great rigidity.
A further object is to provide a barrel and receiver connection adjustable to initially position a barrel within a receiver, which connection, once adjusted, will permit the barrel and receiver to be taken down and be reassembled in exact relative position without further adjustment.
Further objects, advantages and salient features will become apparent from a consideration o'f the description to follow, the accompanying drawings, and the appended claims.
Fig. 1 is a longitudinal vertical sectional view through a firearm embodying our invention.
Fig. 2 is an enlarged partial longitudinal vertical view, partially in section, including only the barrel and receiver to more clearly show the barrel and receiver connection of our invention.
Referring to the drawings, it will be seen that our nvention is embodied in a slide action magazine firearm having a barrel 1, a receiver 2 and a buttstock 3 as basic structural units. A re control unit 4 is supported in the receiver and is of the type disclosed in U.S. Patent No. 2,675,638, issued on April 20, 1954, to L. R. Crittendon and used commercially by applicants assignee. A breech bolt 5 is mounted for reciprocation in the receiver, and is shown in Fig. l in closed position. Beneath the barrel 2, a tubular magazine 6 is supported by hardened hangers secured to the barrel. The hardened hanger 11, which is a part of our invention, supports the breech end of the tubular magazine in a bore formed in the hanger.
The receiver 2 of this construction is conveniently an aluminum die casting, permitting a relatively intricate shape with a minimum of machining. Great economy in the use of material is obtained by forming the receiver by die casting as opposed to machining in which a large amount of metal is reduced to useless chips.
It will be noted that the barrel 1 extends for a considerable distance into the receiver 2. The breech bolt 5 is provided with a cartridge head engaging stem 14 which reciprocates in a closely fitting bolt stem guideway 12 formed in the barrel concentric to the barrel chamber 13. As more completely described in the aforementioned f tes o, Patent '2,893,153 `Patented July 7, 1959` 2 parent application, it is desirable to adjust the' head space of the rie by moving the barrel longitudinally along its axis with respect to the receiver and the receiver-carried breech block 5. Our invention provides such adjustment in the connection between the barrel and receiver and will now be described.
Barrel 1 has secured rigidly thereto a hardened foreend hanger 11. A bore formed in the hanger 11 receives the breech end of the tubular magazine 6 and supports it in alignment with a cartridge track 17 formed in a forward extension 2a of the receiver 2.
It will be seen that when the bushing 10 is rotated, the eccentricity of the screw 9 with respect to the center of the bushing will cause the barrel 1 to be moved longitudinally with respect to the receiver 2. A means is thus provided for adjusting the head space of the rearm by longitudinally moving the barrel relative to the receiver.
When the desired adjustment of the barrel in the receiver has been obtained, the bushing 10 may be fixed in the receiver extension 2a by staking or other means.
When it is desired to separate the barrel and attached magazine from the receiver for any reason, it is only necessary to remove the screw 9. On reassembly off the barrel and receiver, screw 9 is again engaged with the hanger 11 through the bushing 10. It is obvious that if the eccentric bushing is fixed against rotation in the receiver extension 2a, the barrel or reassembly will be returned to exactly the same position in the receiver as it occupied before the firearm was disassembled.
The relatively large surface area of the bushing 10 in contact with the receiver extension 2a effectively increases the load bearing area of the receiver. The increase in load bearing area in the receiver insures that the receiver not be deformed by stresses imposed on the barrel in the use ot the rifle, and enhances the rigidity of the construction.
Although our invention has been described in its application to a slide action manually operated ritle having a tubular magazine, it should be obvious that our invention is equally applicable to other types of iirearms, particularly those in which it is advantageous to adjust the position of a barrel relative to a receiver.
It is accordingly intended that the claims to follow should be construed in terms of the broad teachings set forth, and not as limited to the exact embodiment illustrated.
We claim:
l. In a rearm having a receiver, a reciprocable breech bolt in said receiver movable to a xed forward locking position, and a barrel longitudinally positionable in said receiver relative to said forward locking position of said breech bolt for adjustment of headspace, the improvement of adjustable means *for securing said barrel to said receiver in desired longitudinal position comprising a threaded hanger dependent from said barrel, a forward extension on said receiver underlying said hanger and having a hole in substantial alignment with the dependent end of said hanger, a bushing rotatably disposed in said hole and having an opening therethrough which isl eccentric to said hole, and a screw disposed in said bushing opening and engaged with said threaded hanger.
2. In a firearm having a receiver; a reciprocable breech bolt in said receiver movable to a iixed forward locking position, and an assembly extending forwardly from said receiver, comprising a barrel and a magazine tube coextensive with and underlying said barrel; said assembly being longitudinally positionable in said receiver relative to said breech bolt for adjustment of head space; the improvement of adjustable means for securing said assembly in said receiver for proper head space comprising a hanger dependent from said barrel and having thereon support means for said magazine tube and a Y References Cited in the le of this patent UNITED STATESI PATENTS Goodman Nov. 20, 1883 Hartley et al July 22, 1902 Fay May 31, 1904 Lowe Feb. 13, 1945
US564248A 1955-01-19 1956-02-08 Adjustable barrel and receiver connection Expired - Lifetime US2893153A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US48272655 US2751702A (en) 1955-01-19 1955-01-19 Cartridge feeding in a tubular magazine firearm
BE544493D BE544493A (en) 1955-01-19 1956-01-17 FIREARM LOADING BY THE CYLINDER HEAD
US564248A US2893153A (en) 1955-01-19 1956-02-08 Adjustable barrel and receiver connection
US564249A US2824400A (en) 1955-01-19 1956-02-08 Rockable breech bolt locking block

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US48272655 US2751702A (en) 1955-01-19 1955-01-19 Cartridge feeding in a tubular magazine firearm
US564248A US2893153A (en) 1955-01-19 1956-02-08 Adjustable barrel and receiver connection
US564249A US2824400A (en) 1955-01-19 1956-02-08 Rockable breech bolt locking block

Publications (1)

Publication Number Publication Date
US2893153A true US2893153A (en) 1959-07-07

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Family Applications (3)

Application Number Title Priority Date Filing Date
US48272655 Expired - Lifetime US2751702A (en) 1955-01-19 1955-01-19 Cartridge feeding in a tubular magazine firearm
US564248A Expired - Lifetime US2893153A (en) 1955-01-19 1956-02-08 Adjustable barrel and receiver connection
US564249A Expired - Lifetime US2824400A (en) 1955-01-19 1956-02-08 Rockable breech bolt locking block

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US48272655 Expired - Lifetime US2751702A (en) 1955-01-19 1955-01-19 Cartridge feeding in a tubular magazine firearm

Family Applications After (1)

Application Number Title Priority Date Filing Date
US564249A Expired - Lifetime US2824400A (en) 1955-01-19 1956-02-08 Rockable breech bolt locking block

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US (3) US2751702A (en)
BE (1) BE544493A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101648A (en) * 1959-01-14 1963-08-27 Walther Fritz Automatic firearm with means for maintaining slow rate of firing
US5737865A (en) * 1995-03-31 1998-04-14 Heckler & Koch Gmbh Repeater shot gun
US20140033589A1 (en) * 2012-12-10 2014-02-06 MAG Tactical Systems, LLC Firearm receiver and method of manufacture
US11143478B2 (en) 2019-04-05 2021-10-12 Sturm, Ruger & Company, Inc Free-floating barrel mounting system for firearm

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2845738A (en) * 1955-05-23 1958-08-05 Olin Mathicson Chemical Corp Cartridge feeding mechanism
US3003274A (en) * 1959-12-08 1961-10-10 Remington Arms Co Inc Cartridge feed system
US3075313A (en) * 1960-01-25 1963-01-29 Harold D Allyn Breech bolt firearm with movable forearm and action bars
BE629501A (en) * 1962-03-12
US3203129A (en) * 1963-09-13 1965-08-31 Emhart Corp Bolt action rifle barrel construction
US4008537A (en) * 1975-10-03 1977-02-22 The United States Of America As Represented By The Secretary Of The Army Modification of rifle adapter assembly to prevent doubling
US11187481B2 (en) * 2019-05-29 2021-11-30 Smith & Wesson Inc. Firearm fire control mechanisms
US11644256B2 (en) * 2021-03-28 2023-05-09 Jordan Kristomas Kennedy System for a multi-caliber self-loading action assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US288939A (en) * 1883-11-20 Daniel p
US705234A (en) * 1901-09-20 1902-07-22 Remington Arms Co Inc Firearm.
US761463A (en) * 1902-07-24 1904-05-31 Stevens Arms & Tool Company J Breech-loading firearm.
US2369244A (en) * 1939-11-28 1945-02-13 Remington Arms Co Inc Firearm

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE641356C (en) * 1931-04-19 1937-01-28 Siemens Schuckertwerke Akt Ges Lock lock for firearms
US2422301A (en) * 1944-01-12 1947-06-17 Timothy F Horan Cartridge feeding mechanism for repeating firearms
CH243370A (en) * 1944-07-08 1946-07-15 Oerlikon Buehrle Ag Automatic firearm.
BE474539A (en) * 1946-01-16
CH267987A (en) * 1947-06-20 1950-04-30 Oerlikon Buehrle Ag Automatic firearm with cartridge.
US2679123A (en) * 1948-08-20 1954-05-25 Olin Ind Inc Takedown mechanism for firearms
US2601808A (en) * 1948-09-15 1952-07-01 Howard R Clarke Breech bolt lock and actuator for firearms
US2756640A (en) * 1950-03-30 1956-07-31 Brev Aero Mecaniques S A Soc Breech block locking means
US2679124A (en) * 1950-06-16 1954-05-25 Il Harry H Sefried Assembly for the barrel, receiver, magazine, and stock of firearms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US288939A (en) * 1883-11-20 Daniel p
US705234A (en) * 1901-09-20 1902-07-22 Remington Arms Co Inc Firearm.
US761463A (en) * 1902-07-24 1904-05-31 Stevens Arms & Tool Company J Breech-loading firearm.
US2369244A (en) * 1939-11-28 1945-02-13 Remington Arms Co Inc Firearm

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101648A (en) * 1959-01-14 1963-08-27 Walther Fritz Automatic firearm with means for maintaining slow rate of firing
US5737865A (en) * 1995-03-31 1998-04-14 Heckler & Koch Gmbh Repeater shot gun
US20140033589A1 (en) * 2012-12-10 2014-02-06 MAG Tactical Systems, LLC Firearm receiver and method of manufacture
US11143478B2 (en) 2019-04-05 2021-10-12 Sturm, Ruger & Company, Inc Free-floating barrel mounting system for firearm

Also Published As

Publication number Publication date
US2824400A (en) 1958-02-25
US2751702A (en) 1956-06-26
BE544493A (en) 1956-02-15

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