GB1350327A - Method and apparatus for ranging a gun - Google Patents

Method and apparatus for ranging a gun

Info

Publication number
GB1350327A
GB1350327A GB2139772A GB2139772A GB1350327A GB 1350327 A GB1350327 A GB 1350327A GB 2139772 A GB2139772 A GB 2139772A GB 2139772 A GB2139772 A GB 2139772A GB 1350327 A GB1350327 A GB 1350327A
Authority
GB
United Kingdom
Prior art keywords
combustion chamber
gun
propellant
conduit
servo
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
GB2139772A
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.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall GmbH
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 claimed from DE19712132518 external-priority patent/DE2132518C3/en
Application filed by Rheinmetall GmbH filed Critical Rheinmetall GmbH
Publication of GB1350327A publication Critical patent/GB1350327A/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
    • F41A1/00Missile propulsion characterised by the use of explosive or combustible propellant charges
    • F41A1/06Adjusting the range without varying elevation angle or propellant charge data, e.g. by venting a part of the propulsive charge gases, or by adjusting the capacity of the cartridge or combustion chamber

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Telescopes (AREA)

Abstract

1350327 Gun ranging RHEINMETALL GmbH 8 May 1972 [30 June 1971] 21397/72 Heading F3C In a method for ranging a gun the range of fire for a constant barrel elevation is used as a datum which is converted into impulses for apportioning the volume of propellant and/or adjusting the volume of the combustion chamber. In an embodiment a gun 1, having a rifled barrel 2 is rigidly connected to a gun carriage 3. A breechblock 4 is provided with a servo gear 5 for adjusting a combustion chamber and the barrel 2 carries an apportioning device 6 connected with a servo gear 7. The device 6 is coupled, via a conduit 8, to a propellant container 9 and via a conduit 10 to the combustion chamber. The servo gears 5, 7 are electrically coupled, via a converter 11, with a range-finder 12. In use a distance determined by the range finder 12 is provided as a datum to the converter 11 by which this value is converted into an electrical impulse suitable for the servo gear 5 of the breech block 4 and into a pulse suitable for the motor gearing 7 of the apportioning device 6. The size of the combustion chamber is adapted, to the quantity of propellant to be taken in, by the servo gear 5 and the servo gear 7 actuates the apportioning device 6 to extract the required quantity of propellant from the container 9, via the conduit 8 and is conveyed, via the conduit 10, to the combustion chamber. Firing of the gun is by a detonating device (not shown). In another embodiment liquid or paste-like propellant is apportioned by a piston 23, Fig. 2, in a cylinder 24, the piston being moved by a servo gearing 7 set by a range finder (not shown). The cylinder is fed with propellant via a non- return valve 25 and a conduit 8 and propellant is passed, from the cylinder via a non-return valve 22 and a conduit 10, and into a combustion chamber 20 of the gun. In a further embodiment the volume of a combustion chamber 20, Fig. 3, is varied by a piston 31. In yet another embodiment the volume of a combustion chamber 20, Fig. 4, is varied by a ram 36 which is used to position a projectile 21 in a gun barrel 35, an end 21a of the projectile 21 serving as a wall of the chamber 20.
GB2139772A 1971-06-30 1972-05-08 Method and apparatus for ranging a gun Expired GB1350327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712132518 DE2132518C3 (en) 1971-06-30 gun

Publications (1)

Publication Number Publication Date
GB1350327A true GB1350327A (en) 1974-04-18

Family

ID=5812245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2139772A Expired GB1350327A (en) 1971-06-30 1972-05-08 Method and apparatus for ranging a gun

Country Status (2)

Country Link
FR (1) FR2144268A5 (en)
GB (1) GB1350327A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1621843A1 (en) * 2004-07-27 2006-02-01 Fabbrica d'Armi Pietro Beretta S.p.A. Incapacitating firearm and method for shooting an incapacitating bullet
EP1721112A2 (en) * 2004-02-18 2006-11-15 BAE Systems Land & Armaments L.P. Variable volume chamber cannon

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19653784A1 (en) * 1996-12-21 1998-06-25 Dynamit Nobel Ag Non-lethal weapon

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1721112A2 (en) * 2004-02-18 2006-11-15 BAE Systems Land & Armaments L.P. Variable volume chamber cannon
EP1721112A4 (en) * 2004-02-18 2011-05-04 Bae Systems Land & Armaments L P Variable volume chamber cannon
EP1621843A1 (en) * 2004-07-27 2006-02-01 Fabbrica d'Armi Pietro Beretta S.p.A. Incapacitating firearm and method for shooting an incapacitating bullet
US7694619B2 (en) 2004-07-27 2010-04-13 Fabbrica D'armi Pietro Beretta S.P.A. Low lethality firearm and relative method for shooting a low lethality bullet

Also Published As

Publication number Publication date
DE2132518A1 (en) 1973-01-18
DE2132518B2 (en) 1975-06-12
FR2144268A5 (en) 1973-02-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee