US1360195A - Ordnance firing mechanism - Google Patents

Ordnance firing mechanism Download PDF

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Publication number
US1360195A
US1360195A US237363A US23736318A US1360195A US 1360195 A US1360195 A US 1360195A US 237363 A US237363 A US 237363A US 23736318 A US23736318 A US 23736318A US 1360195 A US1360195 A US 1360195A
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US
United States
Prior art keywords
hammer
lock frame
lock
frame
firing
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
US237363A
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English (en)
Inventor
Dawson Arthur Trevor
Buckham George Thomas
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.)
Vickers Ltd
Original Assignee
Vickers 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
Priority to FR499665D priority Critical patent/FR499665A/fr
Application filed by Vickers Ltd filed Critical Vickers Ltd
Priority to US237363A priority patent/US1360195A/en
Application granted granted Critical
Publication of US1360195A publication Critical patent/US1360195A/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
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/42—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer
    • F41A19/49—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer in block-action guns

Definitions

  • This invention relates to firing mechanism for ordnance of the kind havir a sliding lock frame movable transversely to the axis of the gun in a box slide attached to the rear end of the axial vent bolt.
  • the lock frame carries a striker of the hammer'type pivoted to move in a plane transverseto thepath of travel of the lock frame, this arrangement enabling the hammer to be cocked by a lanyard without possibility of the lock frame being displaced from its closed position by the pull of the lanyard and obviating the necessity for a locking pin to prevent this movement; it also enables the overall length of the lock to be reduced to a minimum.
  • the firing spring and plunger Carried in the lock frame is the firing spring and plunger, the latter being preferably so arranged asto engage with projections disposed on the hammer one on each side of the hammer pivot; this'arrangement' gives a balancing effect to the hammer so as to cause it to be slightly withdrawn to a retracted position after firing, the momentum of the rapidly moving hammer when firing being more than sufiicient to overcome the slight initial spring pressure necessary for retraction.
  • v Figure 1 is a rear elevation showing the improved lock mechanism in position on the gun, the lock frame in this figure being adapted to move in a path at an angle to the vertical.
  • Fig. 2 is a rear elevation of the improved lock mechanism, the lock frame in this case being adapted to move in a vertical path.
  • Fig. 3 is a plan of Fig. 2.
  • Fig. it is a section taken approximately on the line L, l of Fig. 2.
  • Fig; 5' is a view'simi'lar to Fig. 4 but showing1 the hammer in the rearmost position;
  • v 1 1g. 6 1s a vertical section vlewed 1n the opposite direction from that of Fig. 2 (via. from the muzzle end of the gun) showing a detail hereinafter referred t i Fig. 7 is a section taken approximately on the line 7- of Fig. 2, and I F 8 is a section taken approximately on the line 8-8 of Fig. 2.
  • A (Fig. l) is the carrier, B the box slide, and G the axial vent bolt to which the box slide is connected by a continuous screw thread or by interrupted collars inthe usual manner.
  • D is the lock frame movable in an upward direction on the box slide to expose the primer chamber' in the axial vent bolt
  • D is a lock frame operating handle pivoted at d" to a bracket D attached to the lock frame
  • 07 (F ig. 6) is a hookshaped projection on the handle D for engaging in a recess 6' in the box slide to hold the lock frame in the closed position.
  • E is the firing hammer pivoted at e to the lock frame so as to move in a plane at right angles I to the path of travel of the lock frame
  • E is a projection on the hammer E, this projection having an inclined surface with which an extension D of the handle D engages to slightly retract the hammer when the handle is rocked about its pivot-to di sngage the projection 03' from its recess b prior to the movement of the lock frame to the open position, this retraction of the hammer being for the purpose of bringing its striking point clear of the box slide during the movement of the lock frame.
  • the lock frame D is formed with longitudinal grooves adapted to engage with fins B B onthe box slide B and also with fins 0 C on the axial vent f
  • the forward projection e" on the hammer displaces the plunger 6 to energize the spring E (see ig. 5) and when the hammer is then released, it flies forward under the in fiuence of the spring acting on the projection a, the momentum of the hammer carrying it past the position shown by Fig. i to bring the rear projection e against the spring plunger; the subsequent reaction of the spring operating upon the hammer through the projection e then causes the hammer to be slightly retracted into the position of equilibrium shown by Fig. 4.
  • a projection E extending to the rear of the hammer serves to receive the lanyard hook which is retained in position by means of a lanyard guard 12" disposed in the hammer and mounted on the pivot pin 6 of the hammer.
  • the lanyard uard is moved into the position shown by Big. 5 by the contact of a face 6 on the guard with a stop 5X or the lock frame, thereby freeing the lanyard the receiver or box slide in which the lockand releasing the hammer; this arrangement constituting firing mechanism of the sliplock hammer type.
  • the rearward movement of the hammer is limited by a step c" and the hammer may have a projection E (Fig.
  • a fairlead E is provided for the lanyard so that the inner portion of the lanyard lies at therequircd anglIe.
  • lock mechanism the combination with the wedge or lock frame and the receiver or box slide in which the lock frame moves, of a firing hammer pivoted bination with the wedge or look frame and the receiver or box slidein which the lock frame moves, of a firing hammer pivoted to said lock frame so as to move in a plane transverse to the path of travel of the lock frame and a spring adapted to operate upon the hammer to one side or the other of its pivot according to the position of the hammer.
  • n ordnance lock mechanism the combination with the wedge or lock frame and the receiver or box slide in which the lock frame moves, of a firing hammer pivoted to said lock frame so as to move in a plane transverse to the path of travel of the lock frame and provided with projections one on each side of thepivotal axis of the hammer, a firing spring for said hammer and a plunger subjectto the influence of said spring with which plunger one or the other or both of said projections are adapted to engage according to the position of the hammer, the hammer'being in a retracted position of equilibrium whenboth the projections are engaging with the plunger.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussion Or Vibration Massage (AREA)
US237363A 1918-05-29 1918-05-29 Ordnance firing mechanism Expired - Lifetime US1360195A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR499665D FR499665A (fr) 1918-05-29
US237363A US1360195A (en) 1918-05-29 1918-05-29 Ordnance firing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US237363A US1360195A (en) 1918-05-29 1918-05-29 Ordnance firing mechanism

Publications (1)

Publication Number Publication Date
US1360195A true US1360195A (en) 1920-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
US237363A Expired - Lifetime US1360195A (en) 1918-05-29 1918-05-29 Ordnance firing mechanism

Country Status (2)

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US (1) US1360195A (fr)
FR (1) FR499665A (fr)

Also Published As

Publication number Publication date
FR499665A (fr) 1920-02-18

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