US2819653A - Fire control means for a recoiling twin-gun - Google Patents

Fire control means for a recoiling twin-gun Download PDF

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Publication number
US2819653A
US2819653A US323821A US32382152A US2819653A US 2819653 A US2819653 A US 2819653A US 323821 A US323821 A US 323821A US 32382152 A US32382152 A US 32382152A US 2819653 A US2819653 A US 2819653A
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United States
Prior art keywords
breech
lever
twin
rod
arm
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Expired - Lifetime
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US323821A
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English (en)
Inventor
Brathe Karl Bertil
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Saab Bofors AB
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Bofors AB
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Publication date
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    • 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
    • F41A19/18—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns

Definitions

  • the present invention relates to guns having twin barrels mounted for joint elevational and traversing movements, particularly to a twin-gun in which each barrel is individually recoiling and has a breech ring with associated breech block and a firing device.
  • Twin guns of the general type above referred to particularly when designed for large calibre projectiles are generally serviced by first ramming and preparing for firing one of the barrels and then ramming and readying the other barrel. tion, the two barrels are fired singly or jointly by separate and simultaneous operation respectively of the trigger mechanisms of the two barrels.
  • the principal object of the present invention is to provide a novel and improved control mechanism assuring a simultaneous firing of the two barrels of a twin-gun.
  • Another object of the invention is to provide a control mechanism for selectively firing either one or both barrels of a twin-gun.
  • Still another object of the invention is to provide a control mechanism for a twin-gun in which for the purpose of assuring a simultaeous discharge of both barrels, the means of each barrel for moving the breech ring and the breech block thereof into the ready position are interlocked and coacting with each other so that neither barrel can be fired until the breech ring and the breech block of both barrels have reached positions in which the barrels are ready for firing.
  • Fig. 1 is an isometric fragmentary view of a twin-gun equipped with a control mechanism according to the invention.
  • Figv 2 is a detail view of Fig. 1 on an enlarged scale.
  • each barrel has at its rear end a breech ring 2 and 2 respectively including a breech block 3 and 3 respectively.
  • the breech blocks are movable in the direction perpendicular to the axis of the barrels.
  • Each breech block 3 and 3' is operatively coupled with a lever 4 and 4 respectively seated on a splined shaft 5 and 5' respectively.
  • Each of these shafts is pivotally supported in a manner not shown by the respective breech ring.
  • the left end of shaft 5 and the right end of shaft 5' are secured to spring loaded drums 6 and 6' respectively and the right end of shaft 5 and the left end of shaft 5' are fastened to a segment 7 and 7' respectively both disposed outside the respective breech block 3 and 3 respectively.
  • Each of the segments 7 and 7 is formed with a finger 8 and 8' respectively laterally extending therefrom.
  • Each segment is further formed with a laterally extending cylindrical guide member 9 and 9 respectively coacting with a cam surface 10 and 10' on a Wall portion 11 of a housing 12 for the breech rings 2 and 2.
  • a firing pin 13 and 13 is slidably mounted in each of the breech blocks 3 and 3 .
  • Each firing pin is arranged to strike a cartridge rammed into the respective barrel, a cartridge 14 rammed into barrel 1 being shown.
  • the firing pins 13 and 13 are actuated by a spring 15 and 15 operatively connected with a trigger device (not shown).
  • a trigger device not shown.
  • the firing pins are further controlled by pawls 16 and 16' respectively which for this purpose engage an abutment nose 17 and 17' provided on the firing pins 13 and 13'.
  • Each pawl is pivotally supported on a pin 18 and 18' respectively extending from the breech blocks.
  • Each pawl 17 has in addition to the arm coacting with the firing pin an arm coacting with a rod 19 and 19' respectively.
  • These rods are slideably supported in recesses provided in the breech blocks 3 and 3 at a right angle to the axis of barrels I and 1.
  • Rod 19 is biased by a spring 20 towards the left and rod 19 is biased by a spring 20' towards the right.
  • Each of the rods is formed with a stepped recess. As can best be seen on Fig. 2, the two slots thus formed are designated by 21 and 22.
  • the said slots may take various configurations. It is merely essential that slot 22 prevents a passage of pawl 16 and 16' respectively through the slot and beyond rod 19 and 19' respectively, while slot 21 permits such passage of the respective pawl.
  • Each of the breech rings 2 and 2' also supports a rod 23 and 23' respectively which are mounted axially displaceable and are situated in alignment with the respective rod 19 and 19 when the respective breech block 3 and 3 is closed thereby forming an extension of rods 19 and 19'.
  • Each of the rods 23 and 23 supports thereon a two-arm lever 24 and 24 respectively, pivotally secured to the respective rod 23 and 23' by any suitable means such as a screw or pin.
  • One arm 25 and 25' respectively of each lever engages a recess in a member 26 and 26.
  • the rod shaped portions of these members are slideably mounted in bores in the breech rings 2 and 2 respectively.
  • Each of the members 26 and 26 coacts with a spring 27 and 2'7 respectively which are loaded to force the respective member out of its bore in the breech ring in which it is supported.
  • the second arm 28 and 23' respectively of each two-arm lever engages a recess in a rod 2% and 29 respectively which are also mounted axially slideably in a hole extending into the breech ring 2 and 2' respectively.
  • Springs 35) and 30' respectively coact with rods 29 and 29' and exert a pressure upon the said rods urging the same out of their respective holes.
  • the outer end of each rod 29 and 29' respectively is in engagement with a guide path provided on the respective segment 7 and 7.
  • the control means further comprise a support structure 31, fixedly secured to wall 11 of housing 12 and rotatably supporting two shafts 32 and 33.
  • Shaft 32 supports two arms or fingers 34 and '35 secured against rotation relative to shaft 32 which for this purpose is shown as a splined shaft.
  • Finger 34 coacts with a'bar 3d slideably supported by structure 31.
  • Bar'36' is situated in axial alignment with member Zdwhen breech Bar 36 coacts with a spring37 which urges bar'36 towards the right.
  • Finger 35 coacts with the rod shaped portion'of a member 38 also supported by structure 31.
  • the right hand end of member 38' is coacting with finger 8 of segment 7.
  • Shaft 33 supports two arms or fingers 39 and 40.
  • Finger 39 coacts with the rod shaped portion of a member 38 which in turn is engageable with finger S of segment 7 and finger 4t engages an axially slideable bar 36 which is situated in alignment with member 26 when breech ring 2 occupies its forward position.
  • Bar 36 coacts with a spring 37' which urges the bar toward a position I separated from member 26.
  • Shafts 32 and 33 each further support an arm or finger 41 and 42 respectively. These fingers engage recesses 43 and 44 respectively in an axially slideable rod 45.
  • a spring 46 urges rod 45 in an upward direction. acts with an actuation member 47. This member, which may be manually operable, has an arm forcing rod 45 downwardly upon actuation of member 47.
  • the fire control mechanism operates as follows:
  • Closing of breech block 3' causes finger 8' associated with breech block 3' to move downwardly to displace rod 38' toward the left resulting in a rotation of shaft 32 so that rod 19 is moved towards the left through the agency of finger 34, bar 36, member 26 and lever 24 as previously described.
  • the fire control mechanism assures that selectively either both projectiles are fired simultaneously or a projectile is discharged only from a single barrel of the gun.
  • each barrel of which is individually recoiling and equipped with a breech ring movable between a forward and a rear position, a breech block movable transversely to the axis of the respective barrel between an open position and a closed position, a firing means, a control means coacting with the breech ring of each barrel and controlling the firing of said barrels, each of said control means being operatively coupled with the breech block of the respective breech ring, and also with the other breech block, each of the said control means including retaining means controlled to block an operation of the firing means of the respective barrel upon either breech ring being in a position other than the said forward position and either breech block being open and to release the firing means for operation thereof upon both breech rings being in the forward position and both breech blocks being closed, each of said retaining means comprising a movable member retaining the retaining means in one position and releasing the same in another position, a movable control lever
  • each control means comprise an axially displaceable member retaining said retaining means in one axial position and releasing the same in another axial position, a pivotally mounted two-arm lever, one arm of said lever actuating said member for axial displacement thereof in response to a pivotal movement of the said lever, and means for pivoting said lever for the purpose aforesaid controlled by the movement of the respective breech ring and breech block.
  • a twin-gun according to claim 2 in combination with spring means coacting with said axially displaceable member and spring means coacting with the said pivotal lever, the said two spring means biasing the said member and the said lever toward a position in which the same retain the retaining means.
  • each control means comprise an axially displaceable first member formed with at least one recess, a movable control member operatively coupled with said firing means and controlling the release of the same for operation, the said control member releasing the firing means in a pre-determined position of the control member relative to the first member, the said first member and the said control member being disposed in a spatial relationship such that in one axial position of the first member the same arrest a release movement of the control member and in a second axial position permits passage of said control member through said recess and into a position releasing the firing means for operation,
  • each control means comprise an axially displaceable member retaining said retaining means in one axial position and releasing the same in another axial position, and a pivotally mounted two-arm lever, one arm of said lever engaging said member for axial displacement thereof in response to a pivotal movement of the said lever, the other arm of said lever being operatively coupled with the respective breech block for pivoting of said lever by the movement of said breech block.
  • a twin-gun according to claim 5, wherein the said operative coupling between the said other lever arm and said breech block comprises a first member movable in unison with the breech block and having thereon a guid ing surface and a second movable member engaging said guiding surface and said other lever arm for imparting a pivotal movement to said lever, the said guiding surface being of a configuration such as to effect pivoting of the two-arm lever upon a movement of the said first movable member in unison with the respective breech block.
  • the said coupling means include the said two-arm lever, one arm of said lever coacting with the said axially displaceable member and the other arm with the said second movable member controlled by the movement of the respective breech block.
  • a twin-gun according to claim 8 wherein the said actuating mechanism comprises two rotatable rod members, each of said rod members having thereon two laterally extending arms coacting with said two-arm levers.
  • a twin-gun according to claim 9 wherein one arm of each rod member is in operative engagement with the arm of the respective two-arm lever coacting with the axially displaceable member associated with the breech ring of one barrel and the other arm of each rod member is in operative engagement with said second member associated with the breech ring and the breech block of the other barrel for effecting a movement of the said axially displaceable member so as to release the respective retaining means in response to an actuation of the said movable actuating mechanism.
  • each of the said rod members has thereon a third arm, each of the said third arms being in operative engagement with the respective axially displaceable member.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
US323821A 1952-02-11 1952-12-03 Fire control means for a recoiling twin-gun Expired - Lifetime US2819653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE315344X 1952-02-11

Publications (1)

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US2819653A true US2819653A (en) 1958-01-14

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US323821A Expired - Lifetime US2819653A (en) 1952-02-11 1952-12-03 Fire control means for a recoiling twin-gun

Country Status (4)

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US (1) US2819653A (en:Method)
CH (1) CH315344A (en:Method)
FR (1) FR1070717A (en:Method)
NL (2) NL175934B (en:Method)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236335A (en) * 1937-05-05 1941-03-25 Anciens Ets Hotchkiss & Cie Firing mechanism for multiple guns
US2329668A (en) * 1940-11-16 1943-09-14 Curtiss Wright Corp Synchronous trigger control
US2403641A (en) * 1944-03-30 1946-07-09 Ouden Frits Jan Willem Den Gunfire synchronizing control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236335A (en) * 1937-05-05 1941-03-25 Anciens Ets Hotchkiss & Cie Firing mechanism for multiple guns
US2329668A (en) * 1940-11-16 1943-09-14 Curtiss Wright Corp Synchronous trigger control
US2403641A (en) * 1944-03-30 1946-07-09 Ouden Frits Jan Willem Den Gunfire synchronizing control

Also Published As

Publication number Publication date
CH315344A (de) 1956-08-15
NL175934B (nl)
FR1070717A (fr) 1954-08-10
NL90333C (en:Method)

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