US3610091A - Ballistic device comprising a projectile and its launcher - Google Patents

Ballistic device comprising a projectile and its launcher Download PDF

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Publication number
US3610091A
US3610091A US798058A US3610091DA US3610091A US 3610091 A US3610091 A US 3610091A US 798058 A US798058 A US 798058A US 3610091D A US3610091D A US 3610091DA US 3610091 A US3610091 A US 3610091A
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US
United States
Prior art keywords
piston
tube
guide rod
projectile
launcher
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
US798058A
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English (en)
Inventor
Robert Bornand
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.)
TRANSURVEY HOLDING CO Inc
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TRANSURVEY HOLDING CO Inc
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Publication date
Application filed by TRANSURVEY HOLDING CO Inc filed Critical TRANSURVEY HOLDING CO Inc
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Publication of US3610091A publication Critical patent/US3610091A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
    • F41F7/00—Launching-apparatus for projecting missiles or projectiles otherwise than from barrels, e.g. using spigots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/04—Rifle grenades

Definitions

  • the present invention relates to a ballistic device cornprising a projectile and its launcher, the projectile cornprising a rearwardly extending tube which is radially indeformable under the pressure developed during burning of a launching charge and which is hermetically sealed axially by a piston.
  • the launcher comprises a guide rod in contact with the piston and ignition means for the launching charge, characterized in that the said ignition means is electrical in nature and is disposed at least in part in the piston and is externally actuated by means of the guide rod.
  • the attached drawing shows, by way of example, one embodiment of a device according to the invention, in which the projectile is in the form of a self-propelled grenade.
  • FIG. l is a View partially in axial section, with the parts in their position immediately before firing;
  • FIG. 2 is a view partially in elevation, with parts in axial section in the position they occupy after firing, when the grenade is just leaving the guide rod which forms a portion of the launcher;
  • FIG. 3 is an axial cross-sectional View to a larger scale of a portion of FIG. 1 showing in detail the ignition means for the launcher charge.
  • the illustrated ballistic device comprises a self-propelled projectile comprised by a head 1 which is screwed on the forward externally screw-threaded portion 2a of a tube 2 whose rear portion carries fins 2b as well as a screwthreaded annular retaining ring 3.
  • a self-propelled projectile comprised by a head 1 which is screwed on the forward externally screw-threaded portion 2a of a tube 2 whose rear portion carries fins 2b as well as a screwthreaded annular retaining ring 3.
  • au explosive charge 4 which is compressed by a metal piston 5 which may for example be of brass and which is force fitted into the recess in tube 2 from the rear end of tube 2 before retaining ring 3 is added.
  • the pressure exerted by piston 5 may for example be 400 to 800 kg./crn.2.
  • Piston 5 is traversed by an axial hole, in the rear portion of which is disposed a pin 6 of electrically insulating material, in which in turn is screwed a cylindrical brass rod 7 which bears against an insulating plug 8 which hermetically closes the forward end of the axial hole.
  • the plug S is traversed by a tail 9a of a brass capsule 9 containing a powdered primer and a metallic filament (not 3,610,091 Patented Oct. 5, 1971 shown) which glows incandescent upon electrical resistance heating.
  • the body of capsule 9 is for the most part surrounded by a steel ring 10 while the tail 9a is screwed into the brass rod 7.
  • a hollow brass contact 11 which is acted upon by a compression spring 12 that also bears against rod 7, so that the head of contact 11 emerges somewhat from the rear wall of piston 5, this rear wall in turn comprising the bottom of a rearwardly opening cylindrical seat formed in piston 5.
  • a steel guide rod 13 whose rear head 13a is provided with screw threading permitting it to be screwed into a support forming part of the launcher proper' (not shown) or which may be connected by an adapter to the muzzle of any desired firearm.
  • the forward end of the guide rod 13 is provided with a recess lined with a cup 14 of insulating material at the bottom of which is disposed a contact lug 15 of stainless steel whose purpose is to establish electric contact with the portion of the contact 11 that emerges from piston 5.
  • An electric wire 16 Whose forward end is soldered to the contact lug 15 extends the length of guide rod 13 in a longitudinal slot 17 which is lined with insulating material and which communicates, by a bore directed toward the axis of the rod and lined with an insulating tube 18, with the seat containing the contact lug 15.
  • the rear or lower end of the wire 16 passes through the head 13a in an axial bore lined with an insulating tube 19 and is pressed by a set screw 20 screwed into an insulating sleeve 21 against the interior wall of a contact 22 disposed in the insulating sleeve 21.
  • the contact 22 is connected by a conductor 23 to the positive pole of a current source 25, while the head 13a is connected by a conductor 24 to the negative pole of the said current source across a switch 2'6.
  • the rod 13 is disposed to guide the tube 2 on the one hand in the bore of the retaining ring 3 and on the other hand in the rear seat of the piston.
  • the retaining ring 3 could be omitted and the rod 13, whose diameter would accordingly be somewhat less than that of the piston 5, would be freely slidably disposed directly in the tube 2.
  • the operation of the ballistic device is as follows:
  • the parts being in the position shown in FIG. 1, preparatory to launching the self-propelled projectile 1, 2, all that need be done is to close the switch 26 to establish an electric current between the contact lug 15 and the contact 11 so that a circuit is completed, on the one hand, through contact 11, spring 12, rod 7, tail 9a and one end of the filament in capsule 9, and on the other hand, through head 13a, rod 13, piston 5, ring 10, capsule 9 and the other end of the filament in capsule 9.
  • the filament in capsule 9 will thus be. brought to incandescence by electric resistance heating and will fire the primer, which in turn will rlire the launching charge 4 which explodes, exerting on the piston 5 maintained fixed by the guide rod 13 a pressure which is initially quite great.
  • a ballistic device comprising a projectile and a launcher for that projectile, the projectile comprising a rearwardly extending tube containing a combustible charge sealed in the tube by means of a piston, the launcher comprising a guide rod that extends forwardly into the tube and bears against the rear of the piston, and electrical ignition means for the launching charge; the improvement in which the piston is force fitted into the tube, an ignition capsule disposed at least in part in a recess of the piston adjacent the charge with a shoulder of the capsule resting on the bottom of the recess, the piston having an axial bore therein, a pin of insulating material disposed in the bore, conductor means extending along the piston and through said insulating pin and electrically interconnecting a source of electricity in said ignition capsule to ignite a primer in said capsule when said conductor means is electrically charged, said guide rod having a recess in its forward end, insulating material lining the last-named recess, said conductor means comprising a
  • said conductor means including an electric wire extending lengthwise within but insulated from said guide rod.
  • said conductor means including an incandescent wire in contact with said primer.
  • a ballistic device as claimed in claim '6 said wire extending from said groove through a passageway directed inwardly toward the axis of the guide rod and being electrically secured to a contact disposed axially of but electrically insulated from the rear end of said guide rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Elimination Of Static Electricity (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Toys (AREA)
US798058A 1968-02-08 1969-02-10 Ballistic device comprising a projectile and its launcher Expired - Lifetime US3610091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH207568A CH474735A (fr) 1968-02-08 1968-02-08 Ensemble balistique formé d'un projectile et de son dispositif de lancement

Publications (1)

Publication Number Publication Date
US3610091A true US3610091A (en) 1971-10-05

Family

ID=4225311

Family Applications (1)

Application Number Title Priority Date Filing Date
US798058A Expired - Lifetime US3610091A (en) 1968-02-08 1969-02-10 Ballistic device comprising a projectile and its launcher

Country Status (10)

Country Link
US (1) US3610091A (de)
BE (1) BE727872A (de)
CH (1) CH474735A (de)
DE (2) DE6903896U (de)
ES (1) ES363302A1 (de)
FR (1) FR2001593A1 (de)
GB (1) GB1255707A (de)
IL (1) IL31541A (de)
NL (1) NL164662C (de)
SE (1) SE356810B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886841A (en) * 1973-05-29 1975-06-03 Matthew S Smith Rocket powered round
US3981225A (en) * 1973-05-29 1976-09-21 Smith Matthew S Launcher arrangement for rocket powered round
US4689911A (en) * 1984-06-04 1987-09-01 Napco Industries, Inc. Grenade launcher attachment for infantry weapon
US5628137A (en) * 1995-06-13 1997-05-13 Cortese Armaments Consulting Advanced individual combat weapon
CN102829675A (zh) * 2011-06-18 2012-12-19 王长存 新型步兵榴弹系统
CN106225570A (zh) * 2016-08-18 2016-12-14 上海机电工程研究所 一种连接器自适应插合装置
US9546844B2 (en) * 2014-07-29 2017-01-17 Ardesa, S.A. Converted muzzleloader arrow gun
US10118825B2 (en) * 2013-12-12 2018-11-06 Molecular Oxygen Limited Oxygen generators

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886841A (en) * 1973-05-29 1975-06-03 Matthew S Smith Rocket powered round
US3981225A (en) * 1973-05-29 1976-09-21 Smith Matthew S Launcher arrangement for rocket powered round
US4689911A (en) * 1984-06-04 1987-09-01 Napco Industries, Inc. Grenade launcher attachment for infantry weapon
US5628137A (en) * 1995-06-13 1997-05-13 Cortese Armaments Consulting Advanced individual combat weapon
CN102829675A (zh) * 2011-06-18 2012-12-19 王长存 新型步兵榴弹系统
US10118825B2 (en) * 2013-12-12 2018-11-06 Molecular Oxygen Limited Oxygen generators
US9546844B2 (en) * 2014-07-29 2017-01-17 Ardesa, S.A. Converted muzzleloader arrow gun
CN106225570A (zh) * 2016-08-18 2016-12-14 上海机电工程研究所 一种连接器自适应插合装置
CN106225570B (zh) * 2016-08-18 2017-11-24 上海机电工程研究所 一种连接器自适应插合装置

Also Published As

Publication number Publication date
FR2001593A1 (de) 1969-09-26
GB1255707A (en) 1971-12-01
ES363302A1 (es) 1970-12-16
DE1905045A1 (de) 1969-08-21
IL31541A (en) 1973-01-30
NL6901499A (de) 1969-08-12
SE356810B (de) 1973-06-04
NL164662C (nl) 1981-01-15
CH474735A (fr) 1969-06-30
NL164662B (nl) 1980-08-15
DE6903896U (de) 1971-06-09
BE727872A (de) 1969-07-16

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