US2237601A - Shoulder-controlled firearm - Google Patents

Shoulder-controlled firearm Download PDF

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Publication number
US2237601A
US2237601A US216380A US21638038A US2237601A US 2237601 A US2237601 A US 2237601A US 216380 A US216380 A US 216380A US 21638038 A US21638038 A US 21638038A US 2237601 A US2237601 A US 2237601A
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US
United States
Prior art keywords
breech
barrel
breech block
housing
shoulder
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
US216380A
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English (en)
Inventor
Holek Frantisek
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2237601A publication Critical patent/US2237601A/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
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/66—Breech housings or frames; Receivers
    • 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

Definitions

  • This invention relates to shoulder-controlled rearms and more particularly to large calibre shoulder-controlled firearms suitable for antitank purposes.
  • large calibre firearm it is to be understood that such firearms are those in which the calibre is greater than mm., although the invention is not to be restricted in this respect.
  • the object of the present invention is to avoid these disadvantages and to reduce the overall length of the iiream, or to decrease its weight without thereby making it less enicient in operation.
  • the abovementioned object is achieved by arranging on the breech, carrying and guiding means, which cooperate with means directly on the barrel during the entire opening or closing movement of the breech.
  • carrying and guiding means which cooperate with means directly on the barrel during the entire opening or closing movement of the breech.
  • locking means which cooperate with the locking means provided directly on the barrel behind the cartridge chamber.
  • the arrangement according to the invention does not interfere with the construction of the striker, cooking, or the firing of the gun in the same manner as in known systems, for example according to the Mauser system.
  • Figure 1 is a longitudinal sectional elevation of a single shot firearm embodying the invention, the breech being closed.
  • Figure 2. is a side View, with the Ibreech open,
  • Figure 3v is a rear View, with the breech closed.
  • Figure 4 is a view looking towards the rear, on an enlarged scale, of the breech block detached.
  • Figure 5 is a fragmentary longitudinal sectional elevation, on an enlarged scale, showing a safety device associated with the breech block to prevent the turning of the breech block handle until the breech is closed.
  • Figure 6 is a cross-sectional view showing a modiiied arrangement of the breech guides.
  • Figure '7 is a longitudinal sectional elevation of a firearm embodying a modification.
  • Figure 8 is a plan view of a rearm embodying a further modification.
  • Figure 9 is a cross-section of Figure 8.
  • l denotes the barrel of the firearm, the said barrel having arranged at both sides thereof, guides 4 of a length l for the guide edges 2 of the breech.
  • the guide edges 2 have a cross-section Ia and are connected at their rear ends with a breech block carrier 'l or are made in one piece therewith.
  • the ⁇ guiding edges 2 are provided with abutments 3, which prevent complete withdrawal of the breech.
  • the breech block carrier l' forms a bridge member which connects the two guiding edges 2, on which two housings 6 and 8 are formed.
  • the larger housing B carries the breech block Il) and the smaller housing 8 serves as a guide for the striker nut I4.
  • the breech block IU is rotatably supported in the housing 6 and is secured against axial displacement on one side, by a ring il and on the other side by the end of the breech block handle I5, which is arranged upon a reduced end of the breech block and secured by a pin.
  • the breech block is provided at the forward part thereof with screw-like surfaces by means of double locking lugs l2, which engage in correspondingly formed recesses in the barrel l, when closing the breech.Y
  • the lugs and recesses are dou-bled in order to increase the surface resisting the pressure on the breech block produced by the ring of the shot.
  • the seat 9 is so constructed that it embraces the base of the cartridge case and engages in the cartridge rim.
  • This seat is open at one side and extended laterally as a groove 9 which serves for the introduction of the cartridge and the removal of the empty cartridge case.
  • the breech block is bored along its longitudinal axis and a striker IS is carried in the bore.
  • the end of the striker is threaded and the striker nut I4 is screwed thereon.
  • the end of the striker nut is enlarged after the manner of a knob in order to permit the cocking of the striker by the iinger of the operator (e. g. when repeating after a misre).
  • a projection is formed which co-operates with the trigger lever.
  • the trigger device is arranged in the known manner in the trigger housing 39.and is operated by a trigger 3l.
  • a handv grip 32 is xed to the trigger housing.
  • the breech In order to prevent turning of the breech block handle I5 into the horizontal position before the inward movement of the breech block hea-d into the barrel is completed, the breech, according to the invention, is provided withla ⁇ safety device which is shown in Figure 5.
  • a spigot 40 In the fixed housing E, a spigot 40 is supported and constantly pressed against the end of the barrel by means of a spring 4I. The vprojection of the spigot 40 is limited by an abutment pin 42.
  • a bore is arranged in the end of the breech block handle I5, which in the vertical position of the handle comes opposite the bore in the housing 6 and in which there is carried a pin'45 loaded by a spring 44.
  • the pin 45 terminates in a conical frustum.
  • the shoulder support, cheek plate and pistol grip 32 are employed in the operation of the rirearm, together with two legs (not shown) which support the forward end of the barrel.
  • the breech functions in the following manner: The breech is unlocked, by turning the handle I5, and withdrawn backwards as far as the abutments 3 on the guide edges 2 permit. During the turning of the han-dle I5, the striker is simultaneously cocked by the action of a cam arranged on the handle housing, engaging the striker nut, as is usual in the Mauser breech. A cartridge can then be inserted in the seat 9 of the breech block. The breech is then thrust forward until the cartridge is fully inserted in the cartridge chamber,
  • the proach of the housing 6 to a determined distance from ythe end of the barrel is the pin 45 thrust out of the bore of the housing 6 by means of the spigot 40, and then the handle I5 can be turned to the right and the breech block locked in the barrel.
  • the breech block is drawn into the barrel to some extent, vsince the lugs I2 are made of screw-form, so that the housing 6 fits tightly against the barrel and the spigot 40 is driven completely home.
  • the breech guide on the butt can also be formed in various other ways.
  • thebreech is guided by means of two circular rods'2.
  • the rods are arrangedin a horizontal planel which contains the axis of the barrel, thus presenting the advantage that the construction is symmetrically arranged.
  • the breech guide is formed by a cylindrical casing 2, which embraces that end of the barrel serving as a guide for the casing.
  • recesses 2 are provided above and below on the casing.
  • the abutment 3 on the end of the casing limits the longitudinal displacement of the breech.
  • the breech block I0 is rotatable in a similar manner in a hollow cylindrical projection 6 of the casing 2, and is operated by the handle I5 which is rigidly secured thereto.
  • the breech block I0 can, however, be rigidly secured to the casing 2, which then executes a turning movement with the breech block during locking and unlocking.
  • 'I'he modication shown in Figures 8 and 9 differs from the foregoing in that in this case the breech block after being withdrawn by an amount equal to the length of the cartridge, is swung out laterally so that the cartridge seat on the breech block is more accessible for operation.
  • 'Ihe l guide edges 2 of the breech are arranged at one side and are formed in one piece with the breech block carrier 'I.
  • the guide 2 is guided along the barrel by means o1' a pin 25 which passes through a groove 5 formed along the guide 2, ( Figure 9).
  • the pin 25 forms an abutment which prevents complete removal of the breech and simultaneously forms a pivot about which the entirebreech turns in the last phase opening, into the position shown in broken lines in Figure 8.
  • the breech block and the other details oi' the breech are similar to those in the embodiment shown in Figures 1 to 3.
  • the entire device When closing the breech, the entire device is first swung back into line with the barrel, whereupon it is thrust forward in a straight line until the housing 6 abuts against the end of the barrel.
  • breech block causing said breech block to execute a thrust movement upon opening and closing, a. bolt for A. actuating said breech block, a breech block carrier, a cylindrical sleeve on said carrier in which said bolt is rotatably mounted, guides mounted on said carrier, guiding means on said barrel ccoperating with said guides so that said breech block may exert a relative axial movement against said sleeve upon locking and unlocking thereof, said guides being formed as a longitudinally grooved guide bar and a pin provided on said barrel extending through said groove in said 4guide bar and about which said breech block may be swung when moved to open position.
  • a rearrn, particularly of large caliber comprising a rotary breech block, a barrel. having locking grooves therein, locking lugs on said breech block cooperating with said grooves and causing said breech block to execute a thrust said sleeve upon locking and unlocking thereof, said guides being formed as a sleeve slidably mounted on the end of said barrel and said sleeve mounted on the end of the barrel being provided with longitudinal recesses for the insertion and removal of cartridges.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Toys (AREA)
  • Slide Fasteners (AREA)
US216380A 1937-06-29 1938-06-28 Shoulder-controlled firearm Expired - Lifetime US2237601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS207360X 1937-06-29

Publications (1)

Publication Number Publication Date
US2237601A true US2237601A (en) 1941-04-08

Family

ID=5450604

Family Applications (1)

Application Number Title Priority Date Filing Date
US216380A Expired - Lifetime US2237601A (en) 1937-06-29 1938-06-28 Shoulder-controlled firearm

Country Status (5)

Country Link
US (1) US2237601A (zh)
BE (1) BE428892A (zh)
CH (1) CH207360A (zh)
FR (1) FR839859A (zh)
GB (1) GB505946A (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799108A (en) * 1954-04-16 1957-07-16 Rauset Fasteners Inc Cartridge extractors
US20100281733A1 (en) * 2007-01-10 2010-11-11 Smith & Wesson Corp. Bolt action firearm and its method of assembly
US10222149B2 (en) * 2016-04-19 2019-03-05 Sig Sauer, Inc. Firearm upper receiver positioning mechanism
US20190234700A1 (en) * 2018-01-30 2019-08-01 Sebastian Josef UNGER Portable firearm receiver having front and rear locking assemblies for removable receiver cover

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270456A (en) * 1964-12-17 1966-09-06 Mossberg & Sons O F Breech-bolt mechanism for bolt-action firearms
US4416077A (en) * 1982-06-14 1983-11-22 Thompson James G Combination extractor and hold down mechanism for a bolt-action rifle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799108A (en) * 1954-04-16 1957-07-16 Rauset Fasteners Inc Cartridge extractors
US20100281733A1 (en) * 2007-01-10 2010-11-11 Smith & Wesson Corp. Bolt action firearm and its method of assembly
US9151553B2 (en) * 2007-01-10 2015-10-06 Smith & Wesson Corp. Bolt action firearm and its method of assembly
US10222149B2 (en) * 2016-04-19 2019-03-05 Sig Sauer, Inc. Firearm upper receiver positioning mechanism
US20190234700A1 (en) * 2018-01-30 2019-08-01 Sebastian Josef UNGER Portable firearm receiver having front and rear locking assemblies for removable receiver cover
US10753694B2 (en) * 2018-01-30 2020-08-25 Sebastian Unger Portable firearm receiver having front and rear locking assemblies for removable receiver cover

Also Published As

Publication number Publication date
GB505946A (en) 1939-05-19
CH207360A (de) 1939-10-31
FR839859A (fr) 1939-04-13
BE428892A (zh)

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