GB332433A - Piston for gas operated automatic firearms - Google Patents

Piston for gas operated automatic firearms

Info

Publication number
GB332433A
GB332433A GB25696/29A GB2569629A GB332433A GB 332433 A GB332433 A GB 332433A GB 25696/29 A GB25696/29 A GB 25696/29A GB 2569629 A GB2569629 A GB 2569629A GB 332433 A GB332433 A GB 332433A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
millimeters
bore
gas operated
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
GB25696/29A
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
Publication of GB332433A publication Critical patent/GB332433A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A5/00Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/18Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
    • F41A5/26Arrangements or systems for bleeding the gas from the barrel

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

332,433. Destree, J. April 13, 1929, [Convention date]. Machine guns.-A gas piston for automatic guns, of the kind having certain portions out of contact with the cylinder within which it moves and having an incurved gasreceiving face, has an overall external diameter which is sufficiently smaller than the bore of the cylinder, to prevent any contact with the cylinder walls. The gases from the gun barrel 2 pass through a duct 2<a> and are directed on to the concave face 4<a> of a piston 4 by a guide 3<a>. The overall external diameter of the piston is sufficiently below that of the bore of the cylinder 3 as to prevent jambing. The order of the clearance for a cylinder of 25 millimeters bore is 0.125 millimeters, i.e. the diameter of the piston is 24.75 millimeters.
GB25696/29A 1929-04-13 1929-08-23 Piston for gas operated automatic firearms Expired GB332433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE148160X 1929-04-13

Publications (1)

Publication Number Publication Date
GB332433A true GB332433A (en) 1930-07-24

Family

ID=3863798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25696/29A Expired GB332433A (en) 1929-04-13 1929-08-23 Piston for gas operated automatic firearms

Country Status (4)

Country Link
BE (1) BE359810A (en)
CH (1) CH148160A (en)
FR (1) FR691097A (en)
GB (1) GB332433A (en)

Also Published As

Publication number Publication date
FR691097A (en) 1930-10-01
BE359810A (en)
CH148160A (en) 1931-07-15

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