US1713955A - Automatic firearm - Google Patents

Automatic firearm Download PDF

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Publication number
US1713955A
US1713955A US183541A US18354127A US1713955A US 1713955 A US1713955 A US 1713955A US 183541 A US183541 A US 183541A US 18354127 A US18354127 A US 18354127A US 1713955 A US1713955 A US 1713955A
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US
United States
Prior art keywords
gases
piston
cylinder
plunger
stroke
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
US183541A
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English (en)
Inventor
Destree Joseph
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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 US1713955A publication Critical patent/US1713955A/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 present invention relates to tire arm i of the kind in which all the automatic operations are obtained by means of one or' lmore springs which are stressed through the medium'of a piston upon which the gases produced by the combustion of the powder are made to act; l
  • the invention .A consistsin leading in the gases through a A fairly large orifice which allows the gases to ⁇ pass away rapidly when the piston, makes its return stroke, the movement ofthe piston beingv gradually restrained during its for* f ward stroke beforefit reaches the end ofits v stroke. 4
  • the gases may also be made to act upon the opposite face of the piston to the one which the driving action is produced by forming at a determined point along the cylinder in which the piston moves, a recess permitting the Acompressed gases to pass rfound the pistonand act upon the-opposite ace.
  • the single Agas inlet necessary in this case may be formed by an orifice inthe wall of the barrel of the fire arm or' in a sleeve dis posed at the outlet fromthe barrel and having adiameter a little larger than that of the projectile.
  • Figs. 2 and 3 illustrate forms of the device wherein a single gas inlet Voffairly large dimensions is provided, the gas inlet being formed in the ir'st case in the wall of the gun barrel and in the, second case in that of a socket orsleeve of larger diameter than the gun barrel, so as to make'the compressed gases undergo al preliminary expansion.
  • Fig. 1 shows a gun -barrelvin'the wall of which has been pierced a first fairly large aperture 2 leading the gas to one end of a cylinder 3 containing a piston 4 which compresses a spring 5 when it is displaced in the direction of the arrow 6.
  • this spring expands it acts upon a lever 7 which is constantly pressed upwardsby a spring 8.
  • the end 9 of the lever 7 presses upon a stop 10 of the screw plate mechanism controlling the various' automatic operations'.
  • the stop 10 is displaced towards the end of the recoil ofthe piston 4, until the moment when a cam 11 makes the lever 7 pivot downwards to press upon the spring 8.
  • the other end of the cylinder' also com municates through a fairly large aperture with the gun barrel l.
  • the gases are first of all admitted on to the right hand face of the piston l in Figure 1 through the aperture 2.
  • the projectile Will have passed beyond the aperture 12 and the gases are admitted on to the other' face of the piston, thus exerting a braking action on the movement of the latter inthe direction of the arrow 6 and preventing the fracture of the piston and the members which Y are attached to it, in spite of the high pressure action in the cylinder.
  • asmall port allowingthe braking y.gases to escape'directly-into thev atmosphere may be formed in the endlB-o the cylinderv 3 near the second gas inlet or in this inlet itself.
  • the same effect may be obtained in the device shown in Fig. 2 in whichfthe gases are only admitted into the cylinder 3 through one single gas ⁇ inlet- 2 but in which the cyl'- inder 3, comprises, rat a ⁇ determined pointV along the stroke of the piston .4, a recess 14 permitting the gases to act betweenthe end 13 of the cylinder and the face'o the pistonV 4 which is opposite this end.
  • the gas inlet 2 maybe formed in a sleeve or socket 15 l after the cylinder 3, Which holes Will besituated in' front of the recess V14: so as to be uncovered piston 4 hasmoved aL ⁇ veiyvshort distance.
  • VVhat I claim is:
  • An automatic fire arm comprising a fixed barrel, a cylinder, a plunger in the cylinder actingpon springs, a connection between these springs-'and the' breech vfor operating the'variousr automatic operations of the breech after the springs vhave' been ,Y stressed by the plunger, meansifor admitting directlythe gases from the barrelonone face of the plunger, means for admit-ting directly and subsequentlyl the gases fron'rthe barrel on the opposite face of the plunger as soon as this plunger'has travelled a smalll Pm fits Stlok'und'er the action of the. j-' gases, thesetwo ⁇ means presenting fairly large sectionsfor the'passage of the gases.
  • a'gun barrel having the bore provided- With spaced outlet Vportsr "adapted y'to be lsuccessively'uncovered by the passage of a; projectile, aV pressure cylinder in communication withv said ports,V anda spring tensioned adapted to beymoved in one'directionf by the gasesv entering the cylinder through one of the said ports andbei-ng adapted Valso to be almost instantly retarded in its movement by the gases subsequently admitted through theother port.
  • a gun barrel ⁇ having the bore provided With spaced outlet ports adapted to besuccessively uncoveredv by the passage of a ⁇ pro- ]ect1le,va pressure cylinder 1nV communication With said ports, andasprmg tensioned vplunger operating Within the cylinder'and Vbetween the said ports, ⁇ said plunger'being plunger operatingl WithinV the cylinder andV ,A
  • said plunger being A Vadapted to be moved in one direction by theA Y,
  • An ⁇ automatic fire arm comprising aV by the'gases subsequently admitted through theV other port, said vportsbeing'of'such relative sizejthat the vplunger ⁇ r retardingv gases are admitted vrinto the.
  • cylinderV havingv substantially the samelpressureas the plunger f .moving gases.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US183541A 1926-07-10 1927-04-13 Automatic firearm Expired - Lifetime US1713955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE126601X 1926-07-10

Publications (1)

Publication Number Publication Date
US1713955A true US1713955A (en) 1929-05-21

Family

ID=3863480

Family Applications (1)

Application Number Title Priority Date Filing Date
US183541A Expired - Lifetime US1713955A (en) 1926-07-10 1927-04-13 Automatic firearm

Country Status (6)

Country Link
US (1) US1713955A (enrdf_load_stackoverflow)
CH (1) CH126601A (enrdf_load_stackoverflow)
DE (1) DE506252C (enrdf_load_stackoverflow)
FR (1) FR637191A (enrdf_load_stackoverflow)
GB (1) GB274031A (enrdf_load_stackoverflow)
NL (1) NL27755C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100224056A1 (en) * 2008-02-22 2010-09-09 Christopher Alan Monroe Gas operated firearm action delay device
US9303932B1 (en) * 2014-11-06 2016-04-05 The United States Of America As Represented By The Secretary Of The Army Firearm with both gas delayed and stroke piston action

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755088C (de) * 1936-02-19 1951-05-21 Johannes Schwarz Selbstladewaffe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100224056A1 (en) * 2008-02-22 2010-09-09 Christopher Alan Monroe Gas operated firearm action delay device
US7810423B2 (en) * 2008-02-22 2010-10-12 Christopher Alan Monroe Gas operated firearm action delay device
US9303932B1 (en) * 2014-11-06 2016-04-05 The United States Of America As Represented By The Secretary Of The Army Firearm with both gas delayed and stroke piston action

Also Published As

Publication number Publication date
DE506252C (de) 1930-09-01
CH126601A (fr) 1928-06-16
GB274031A (en) 1927-09-08
FR637191A (fr) 1928-04-24
NL27755C (enrdf_load_stackoverflow)

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