GB517697A - Improvements in automatic fire-arms - Google Patents

Improvements in automatic fire-arms

Info

Publication number
GB517697A
GB517697A GB23126/38A GB2312638A GB517697A GB 517697 A GB517697 A GB 517697A GB 23126/38 A GB23126/38 A GB 23126/38A GB 2312638 A GB2312638 A GB 2312638A GB 517697 A GB517697 A GB 517697A
Authority
GB
United Kingdom
Prior art keywords
breech
passages
barrel
liquid
block
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
Application number
GB23126/38A
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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 CH226251D priority Critical patent/CH226251A/en
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Priority to GB23126/38A priority patent/GB517697A/en
Priority to US286787A priority patent/US2370363A/en
Priority to FR859379D priority patent/FR859379A/en
Publication of GB517697A publication Critical patent/GB517697A/en
Priority to CH239694D priority patent/CH239694A/en
Expired legal-status Critical Current

Links

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
    • F41A3/54—Bolt locks of the unlocked type, i.e. being inertia 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/78—Bolt buffer or recuperator means
    • F41A3/90—Fluid buffers
    • F41A3/94—Fluid buffers in combination with spring buffers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Toys (AREA)

Abstract

517,697. Machine guns. TENNANT, W. J. (Verwaltungs Ges. der Werkzeugmaschinenfabrik Oerlikon). Aug. 4, 1938, No. 23126. [Class 92 (ii)] The gas-pressure forces acting on the breechblock 4 of an automatic firearm are absorbed by hydraulic means which serves to couple the breech-block with the barrel 1 during the action of these forces. In the construction shown, the breech-block (shown in plan in Fig. 4) is connected by a member 8 and piston rods 10 with two pistons 11 moving in fluid-filled cylinders 14 connected to the barrel Each piston is provided with a spring-loaded non-return valve 12 and with longitudinal passages 11a, and the seat of the valve 12 is provided with slits 11b. When the breech-block moves forwardly under the action of a spring 5, the liquid is forced from one end of the cylinders to the other through passages 7b until the pistons close the forward ends of these passages. Subsequently, the liquid passes throughthe passages 11b and valves 12, the latter being urged by the liquid to their open positions. On recoil, the liquid can at first escape only through the slits 11b, since the valve 12, is closed, thus effecting a hydraulic coupling between the breech-block and barrel which, under this influence, move rearwardly in the breechcasing 3 against the action of a recuperator spring 6. This hydraulic coupling is released when the pistons uncover the forward ends of the passages 7b. The breech-casing 3 is connected to the gun mount by a bolt 16 and carries a stop 3d which limits the forward movement of the barrel.
GB23126/38A 1938-08-01 1938-08-04 Improvements in automatic fire-arms Expired GB517697A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH226251D CH226251A (en) 1938-08-01 1938-08-01 Automatic firearm.
GB23126/38A GB517697A (en) 1938-08-01 1938-08-04 Improvements in automatic fire-arms
US286787A US2370363A (en) 1938-08-01 1939-07-27 Automatic firearm
FR859379D FR859379A (en) 1938-08-01 1939-07-28 Automatic firearm
CH239694D CH239694A (en) 1938-08-01 1944-02-17 Automatic firearm.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH226251T 1938-08-01
GB23126/38A GB517697A (en) 1938-08-01 1938-08-04 Improvements in automatic fire-arms

Publications (1)

Publication Number Publication Date
GB517697A true GB517697A (en) 1940-02-06

Family

ID=32108621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23126/38A Expired GB517697A (en) 1938-08-01 1938-08-04 Improvements in automatic fire-arms

Country Status (4)

Country Link
US (1) US2370363A (en)
CH (2) CH226251A (en)
FR (1) FR859379A (en)
GB (1) GB517697A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547180A (en) * 1948-12-20 1951-04-03 Frank S Taylor Rifle construction
US2557134A (en) * 1940-10-23 1951-06-19 Oerlikon Buehrle Ag Breechblock return mechanism
US2865255A (en) * 1955-08-03 1958-12-23 Weapons Inc Firearm with transversely movable barrel chamber

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846926A (en) * 1954-12-14 1958-08-12 John W Kimball Floating barrel action for automatic pistol
FR2633710B1 (en) * 1988-06-30 1993-09-24 France Etat Armement SEALING DEVICE BETWEEN THE MOBILE COMPONENTS OF AN ARTILLERY REVERSE BRAKE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2557134A (en) * 1940-10-23 1951-06-19 Oerlikon Buehrle Ag Breechblock return mechanism
US2547180A (en) * 1948-12-20 1951-04-03 Frank S Taylor Rifle construction
US2865255A (en) * 1955-08-03 1958-12-23 Weapons Inc Firearm with transversely movable barrel chamber

Also Published As

Publication number Publication date
US2370363A (en) 1945-02-27
CH239694A (en) 1945-10-31
FR859379A (en) 1940-12-18
CH226251A (en) 1943-03-31

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