GB147371A - Improvements in automatic or semi-automatic firearms - Google Patents

Improvements in automatic or semi-automatic firearms

Info

Publication number
GB147371A
GB147371A GB2213819A GB2213819A GB147371A GB 147371 A GB147371 A GB 147371A GB 2213819 A GB2213819 A GB 2213819A GB 2213819 A GB2213819 A GB 2213819A GB 147371 A GB147371 A GB 147371A
Authority
GB
United Kingdom
Prior art keywords
cylinder
rod
gas
piston
breech
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
GB2213819A
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.)
HUGH WILLIAM GABBETT FAIRFAX
Original Assignee
HUGH WILLIAM GABBETT FAIRFAX
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 HUGH WILLIAM GABBETT FAIRFAX filed Critical HUGH WILLIAM GABBETT FAIRFAX
Priority to GB2213819A priority Critical patent/GB147371A/en
Publication of GB147371A publication Critical patent/GB147371A/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
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/32—Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil
    • F41A5/36—Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil with fluid accumulators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Abstract

147,371. Fairfax, H. W. Gabbett-. Sept. 9, 1919. Machine guns, gas-operated. Consists in locating the gas orifice D in the cartridge chamber itself, and in providing in connexion therewith means for (1) delaying the action of the breech mechanism, and (2) preventing the fouling of the gas orifice. The gas-piston F is attached to the rod H, which carries a trip collar L, and pistons J, K. The piston K works in a cylinder M which is fixed in the framing C, and the piston J works in a cylinder O which can run on slides P, attached to the framing C, and is attached to the breech-operating mechanism by a rod R. This mechanism may be of the kind described in Specifications 128,354, 138,135, 138,136 and 139,541. On discharging the firearm, the gas pressure blows a small hole in the cartridge case, and a portion of the gas escapes through the passage D, E, and drives the piston F forwards clear of the cylinder G, compressing the air in the cylinders O, M until the rod H becomes locked to the cylinder 0 by means of the trip lever T and collar L. The expansion of the air in the cylinder M causes the rod H to move backwards, thus opening the breech. An inclined edge Z thereupon tilts the lever T and separates the rod H from the cylinder O, allowing the air in the cylinder O to expand and draw the rod R forwards to close the breech. Springs mav be used instead of air to store the energy. The location of the gas orifice D in rear of the bullet prevents fouling of the orifice by the metal of the bullet.
GB2213819A 1919-09-09 1919-09-09 Improvements in automatic or semi-automatic firearms Expired GB147371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2213819A GB147371A (en) 1919-09-09 1919-09-09 Improvements in automatic or semi-automatic firearms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2213819A GB147371A (en) 1919-09-09 1919-09-09 Improvements in automatic or semi-automatic firearms

Publications (1)

Publication Number Publication Date
GB147371A true GB147371A (en) 1920-07-22

Family

ID=10174496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2213819A Expired GB147371A (en) 1919-09-09 1919-09-09 Improvements in automatic or semi-automatic firearms

Country Status (1)

Country Link
GB (1) GB147371A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174401A (en) * 1961-01-20 1965-03-23 Beretta Pier Carlo Actuating mechanism for automatic shotgun
US4019423A (en) * 1968-11-28 1977-04-26 Johnson James H Automatic or semi-automatic firearm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174401A (en) * 1961-01-20 1965-03-23 Beretta Pier Carlo Actuating mechanism for automatic shotgun
US4019423A (en) * 1968-11-28 1977-04-26 Johnson James H Automatic or semi-automatic firearm

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