US2052368A - Gas controlled automatic firearm - Google Patents

Gas controlled automatic firearm Download PDF

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Publication number
US2052368A
US2052368A US739051A US73905134A US2052368A US 2052368 A US2052368 A US 2052368A US 739051 A US739051 A US 739051A US 73905134 A US73905134 A US 73905134A US 2052368 A US2052368 A US 2052368A
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US
United States
Prior art keywords
sleeve
gas
barrel
piston
gases
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
US739051A
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English (en)
Inventor
Sutter Charles
Dugied Eugene Albert
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.)
Societe Anonyme des Anciens Etablissements Hotchkiss et Cie
Original Assignee
Societe Anonyme des Anciens Etablissements Hotchkiss et Cie
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
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Application granted granted Critical
Publication of US2052368A publication Critical patent/US2052368A/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
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
    • F41A5/26—Arrangements or systems for bleeding the gas from the barrel

Definitions

  • the expansion cylinder is sometimes cappedgby a sleeve which extends to the rear and surrounds the piston, thus eliminating all danger of the rer being hurt by the pistonV in its reciprocating movement.
  • a sleeve which extends to the rear and surrounds the piston, thus eliminating all danger of the rer being hurt by the pistonV in its reciprocating movement.
  • Such sleeve has then numerous holes drilled through it to permit of the free exhaust of the gases, as indicated above. 30 It thus follows from the ordering of gas controlled automatic firearms, that such arms have two orifices for venting the powder gases.
  • the gases are vented to the front'of the rearm.
  • the second orince formed by'the rear section of the expansion cylinder, the gases are vented to the rear of the rearm.
  • the present invention has reference to a device by means of which all the powder gases in gas controlled automatic fire-arms are vented to the A IO . 50 front of the barrel.
  • the expansion cylinder is capped by a sleeve surrounding the piston.
  • Said sleeve thus already acts as a protecting tube for the rer.
  • Said sleeve includes furthermore longitudinal ducts formed in the thickness of its shell and over a suitable length thereof forward of the expansion cylinder; said ducts discharge to the front of the barrel and are open at their other end to the interior of the sleeve. They thus 5 form a circuit from rear to front and from the inside of the sleeve to the outside.
  • Fig. 1 is a longitudinal sectional view of a re- 25 arm improved in accordance with the invention.
  • Fig. 2 is the corresponding end View.
  • Fig. ⁇ 3 illustrates a different type of firearm, also improved in accordance with the invention.
  • the thickness of the sleeve M are drilled 40 a certain number of longitudinal ducts L which discharge to the outside forwardly and which communicate through a milled cut T with the inside of the sleeve, on a level with the rear portion of the expansion cylinder.
  • the expansion cylinder D is constituted by a bore formed in the piston P which then surrounds a xed head H.
  • the sleeve is mounted inthe same manner as before andplays exactly-'the saine part.' n n
  • the ingas receivingV memberto close the gas ductl therein,V said, reciprocating member' adapted to move runder'force of gas in' sai-d duct to actuate thejbreech mechanism vand open said 'duct into thesleeve
  • a gas 'exhaustv member extending forwardly beneath said gas receiving member and communicating withtheinterior of, said sleeve adjacent the end of the said gas du'ctfto receive and exhaust the operating gases towards' the ⁇ muzzle of thev barrel whenj the reciprocating member moves toopen saidductrto the r,sleeve.
  • an automatic gas yoperated gunglan'factuating device including 'ag'as receiving member fixed to, ⁇ the barrel near its outerjendgand having thereina rearwardly directed gas'k duct communicating with ther interior 'of thejbarrel, a sleeve Y 55 fitting tightly about said gas receiving member and 'extending rearwardly beneathsaid barrel, a pressure actuated reciprocatingmember moving in said sleeve and normally engaging with said gas Qreceiving member to close the gas.n duct therein,
  • said reciprocating member adapted to move under force of gas in said duct to actuate the breach mechanism and open said duct into the sleeve, and a semi-cylindrical gas exhaust member extending forward beneath said gas receiving member and having exhaust ports therein communicating with the interior of said sleeve adjacent the endV of said gas duct to receive and exhaust the operating gases towards the muzzle of the .barrel when the reciprocating member moves to open said duct to the sleeve.
  • an actuating device including a-jgas receiving cylinder fixed tothe barrel near its muzzle and having a central bore communicating with the barrel and opening toward the breech, a sleeve fitting tightly about said gas receivingmember extending rearwardly beneathv said barrel, Ya reciprocable piston movable in said sleeve and normally in the bore of said cylinder closing the same, said piston adapted to move under force of gas in said bore to actuate the breachrmechanism of theglm and open said boreV into saidsleeve, andA a gas-exhaust member extending forwardly beneath said cylinder and communicating with the interior Aof said sleeve adjacent the endfof said boreto Areceive and exhaustl the operating gases towards the .muzzle of the barrel when the piston moves to open the bore to ⁇ the sleeve.
  • an actuatingv Vdevice including a gas receiving piston fixed to the barrel near its muzzle and having a centralbore communicating withvthe barrel and opening towards thebreach, a sleeve fitting about said piston and extending rearwardly beneath ysaid barrel, a reciprocable cylinder movable in said sleeve and having a bore toiit around said fixed piston, said cylinderadapted to move under force of gas in thebore of said pistontoI actuate the breachmechanismof'thegun andrope'n the bore of *said* pistoninto said sleeve. and a gas exhaust member extending forwardly.
  • vgas exhaust member comprising a seriesY of tubes communicating with said exhaust port and extending" substantially to the muzzle of 'the barrel to receive the operating gasl under pressure and deliver it at high velocity towards the muzzle of the Vgun.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Toys (AREA)
US739051A 1934-04-04 1934-08-08 Gas controlled automatic firearm Expired - Lifetime US2052368A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR771430T 1934-04-04

Publications (1)

Publication Number Publication Date
US2052368A true US2052368A (en) 1936-08-25

Family

ID=9190617

Family Applications (1)

Application Number Title Priority Date Filing Date
US739051A Expired - Lifetime US2052368A (en) 1934-04-04 1934-08-08 Gas controlled automatic firearm

Country Status (4)

Country Link
US (1) US2052368A (xx)
BE (1) BE404328A (xx)
FR (1) FR771430A (xx)
GB (1) GB423712A (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771819A (en) * 1953-10-12 1956-11-27 Remington Arms Co Inc Gas-operating firearm
US3779131A (en) * 1971-04-21 1973-12-18 T Kawamura Devices for automatically feeding spare cartridge into the firing chamber of shotguns

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771819A (en) * 1953-10-12 1956-11-27 Remington Arms Co Inc Gas-operating firearm
US3779131A (en) * 1971-04-21 1973-12-18 T Kawamura Devices for automatically feeding spare cartridge into the firing chamber of shotguns

Also Published As

Publication number Publication date
GB423712A (en) 1935-02-06
BE404328A (xx)
FR771430A (fr) 1934-10-08

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