US2135688A - Firing device for automatic guns - Google Patents

Firing device for automatic guns Download PDF

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Publication number
US2135688A
US2135688A US139112A US13911237A US2135688A US 2135688 A US2135688 A US 2135688A US 139112 A US139112 A US 139112A US 13911237 A US13911237 A US 13911237A US 2135688 A US2135688 A US 2135688A
Authority
US
United States
Prior art keywords
plunger
piston
chamber
firing device
automatic guns
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
US139112A
Other languages
English (en)
Inventor
Wright Joseph
Trevaskis Henry
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Application granted granted Critical
Publication of US2135688A publication Critical patent/US2135688A/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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/55—Fluid-operated firing mechanisms

Definitions

  • Our invention relates to improvements in firing devices for automatic guns and more particularly to firing devices of this type that may be operated pneumatically or by uid pressure.
  • firing mechanism may be operated pneumatically and whereby it may be operated manually when not being operated pneumatically.
  • our invention we provide means normally holding the firing mechanism in inoperative position. It may be moved from this inoperative position into operative position by a fluid pressure as, for instance, by compressed air moving on a movable piston or plunger. Alternatively it may be moved from inoperative to ⁇ operating position by the operation of a manually operated lever.
  • Fig. 1 is a sectional elevation of the device
  • Fig. 2 is an outside elevation of the device
  • Fig. 3 is a plan view of the device in inverted position.
  • an air inletJ pipe I is connected to a hollow cylinder 2 formed integrally upon the pipe I and positioned within a chamber 3 which chamber 3 is attached to a base plate 4 securable to the adjacent casing of a gun, not shown, the ring mechanism of which is released by the sear 23, Fig. 1.
  • the base plate Ilv is formed with an apertured boss 5 serving to center a plunger 6, the working end of which plunger is normally held substantially flush with the aperture in the boss 5 by a coil spring 1, one end of which contacts the under surface of the boss 5 and the other end of which contacts the inner face of a hollow piston 8.
  • the hollow piston 8 is formed with a skirt 9 having a peripheral flange I adapted to slide within the chamber 3.
  • the plunger 6 is formed adjacent the inner face of the piston 8 with a collar II and the opposite face of the piston 8 remote from the collar II and adjacent the air inlet pipe I is provided with a cup shaped washer I2 of yielding material compressed against the piston 8 by a disc washer I3 and a nut Ill, the latter being threaded upon the lower end of the plunger.
  • the plunger On admission of air or gas to the space IB, the plunger is driven upwards compressing the coil spring 1 and the end of the plunger 6 protrudes through the apertured boss into operative contact with the sear 23 until the air pressure is released.
  • the chamber 3 is slotted with elongated slots I5 on opposite sides of the chamber and through each slot protrudes one of a pair of pins I6, each one of which pins I6 is formed upon one of a pair of transversely spaced cranks Il and contacts the under surface of the flange I0 formed upon the skirt 9 of the hollow piston 8.
  • cranks II are transversely connected by a cross piece I9, Fig. 2, terminating at each end in a semi-circular serrated thumb piece 20.
  • a spindle 2l passes through both of the cranks I'I and through a bearing 22 riveted to the base plate 4.
  • the coil spring 'I reasserts itself as in the case of pneumatic operation to return the plunger to the inoperative position shown in Fig. l and the leaf spring 21 similarly returns the cranks I'I from the operative position shown by ⁇ dotted lines in Fig. 2 to the inoperative position shown by solid lines in Figs. 2 and 1.
  • cranks I'I remain in the inoperative position when the plunger 6 is displaced pneumatically.
  • the hollow cylinder portion 2 integral with the pipe I is formed with a series of circumferentially spaced projections 25, Fig. 1, and the base of the chamber 3 is formed with similar spaced projections so that by loosening the securing sleeve 26, the pipe I and hollow cylinder 2 may be drawn away from the chamber 3 and secured again thereto after rotattion to any convenient position for connecting the air inlet pipe I.
  • Apparatus for operating a bolt release mechanism of an automatic gun which comprises a hollow piston, a plunger attached to said piston, a spring acting against said piston and plunger, pneumatic means for moving said piston and plunger against the action of said spring and manually operated means comprising a lever having pins to engage said hollow piston to move the latter against the action of said spring.
  • Apparatus for operating the bolt release mechanism of an automatic gun which comprises a hollow piston, having an outwardly projecting ange, a plunger attached to said piston, a spring acting on said piston, pneumatic means to move chamber, a hollow plunger in said cylinder, a spring pressing said plunger to inoperative position, said plunger having a stem projecting out- Wardly through the upper part of said chamber, said plunger having an outturned ange at its open upper end and a manually operated lever having pins entering said openings insaid chamber extending below the outturnedgflange of said plunger.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Nozzles (AREA)
US139112A 1936-05-06 1937-04-27 Firing device for automatic guns Expired - Lifetime US2135688A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2135688X 1936-05-06
GB12768/36A GB478503A (en) 1936-05-06 1937-03-13 Improvements in or relating to firing devices for automatic guns

Publications (1)

Publication Number Publication Date
US2135688A true US2135688A (en) 1938-11-08

Family

ID=32044478

Family Applications (1)

Application Number Title Priority Date Filing Date
US139112A Expired - Lifetime US2135688A (en) 1936-05-06 1937-04-27 Firing device for automatic guns

Country Status (4)

Country Link
US (1) US2135688A (d)
FR (1) FR821235A (d)
GB (1) GB478503A (d)
NL (1) NL46678C (d)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582225A (en) * 1946-12-09 1952-01-15 Virgil C Bowser Gun firing mechanism with cutout device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD587766S1 (en) 2006-07-20 2009-03-03 Kee Action Sports I Llc Paintball field marker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582225A (en) * 1946-12-09 1952-01-15 Virgil C Bowser Gun firing mechanism with cutout device

Also Published As

Publication number Publication date
FR821235A (fr) 1937-11-30
NL46678C (d) 1939-09-15
GB478503A (en) 1938-01-20

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