US1706802A - Means for igniting the bursting charge of projectiles - Google Patents

Means for igniting the bursting charge of projectiles Download PDF

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Publication number
US1706802A
US1706802A US123675A US12367526A US1706802A US 1706802 A US1706802 A US 1706802A US 123675 A US123675 A US 123675A US 12367526 A US12367526 A US 12367526A US 1706802 A US1706802 A US 1706802A
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United States
Prior art keywords
fuse
striker
disc
primer
igniting
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
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US123675A
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English (en)
Inventor
Methlin Nicolas Emilien
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.)
Schneider Electric SE
Original Assignee
Schneider et Cie
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 Schneider et Cie filed Critical Schneider et Cie
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Publication of US1706802A publication Critical patent/US1706802A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
    • F42C1/02—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze

Definitions

  • NICOLAS EMILIEN METHLIN OF PARIS, FRANCE, ASSICNOR T0 SCHNEIDER & CIE.
  • OF PARIS, FRANCE A LIMITED JOINT-STOCK COMPANY OF FRANCE.
  • the present-invention relates to improve ments in means for igniting the bursting charge of projectiles such as shells, explosive arrows or others.
  • the invention consists essentially in a. means combined with a percussion fuse and preventing the return of the flame when the firing is transmitted from the fuse to the charge; in other words the invention consists in a special arrangement of an additional member, combined with the fuse, or formed by one of the members of the fuse, this arrangement being such that the flame from the percussion cap of the fuse or the flame from a detonating percussion cap is wholly and in the most eflicient manner possible transmitted to the explosive charge.
  • the invention is more particularly adapted to use in explosive arrows combined with a supersensitive fuse operating by driving in and inertia in which the parts of the firing mechanism (striker and percussion cap) are enclosed in a common container retained upon the fuse body or upon the projectile and becoming separated from the latter in order to make an inward movement as soon as the mechanism. encounters an obstacle offering even only a very small amount ofresistance. According.
  • the flame from the percussioh cap igniting the charge is revented from being propagated outwards y a safety disc or gasket which is adapted to be deformed under the effect of the operation of the fuse and may, for example, be made of a metal of high molecular density such as lead, this disc being integral or virtually integral with the striker or associated with the latter in such a way as to form with it a closing member completely preventing any return towards the exterior of the flame or the gases from the igniting percussion cap.
  • a safety disc or gasket which is adapted to be deformed under the effect of the operation of the fuse and may, for example, be made of a metal of high molecular density such as lead, this disc being integral or virtually integral with the striker or associated with the latter in such a way as to form with it a closing member completely preventing any return towards the exterior of the flame or the gases from the igniting percussion cap.
  • Figure 1 is a sectional elevation showing the invention applied to an. explosive shell, the members being shown at rest.
  • Figure 2 is an elevation with part in section showing the arrangement formed by the conjugation of the striker and the deformed safety disc preventing, at the moment of ignition, any passage outwards of the gases and the flame from the detonating percussion cap.
  • Figure 3 is a View similar to the oneshown the closing device is combined with a lodgment and a container or casing of special form for the detonating percussion cap.
  • Figure 4 is a partial sectional elevation of an explosive arrow constructed to receive a percussion fuse, which comprises the closing device according to the invention; the members in this figure are shown at rest.
  • Figure 5 is a detail View in plan of the safety disc constructed and formed in such a Way as to form, with the striker, a closing device.
  • Figure 6 is a section similar to that shown in Fig. 4 the members being shown in the position they occupy at the moment the percussion cap is struck following an encounter with an obstacle.
  • Fig. 7 shows a plurality of arrows provided with a protecting cap for transportation.
  • Fig. 8 is a plan view of Fig. 7.
  • A is a fuse body screwed into the nose of a shell B and said fuse body comprises at its lower part a lodgment a for the Support O carrying a detonatin percussion cap G adapted to be ignited by the impact of a striker D guided in a duct a formed in the said fuse body.
  • the'striker is driven back towards the detonating percussion cap v in the known manner, by the pressure of the gases produced by the operation of a percussion or time fuse of any known type.
  • the drawing illustrates, simply by way of example, a super-sensitive fuse such as that disclosed in the patent to L. E. Remondy, No.
  • the closing device comprlses a deformable safety diaphragm or disc E which, in this example, is integral with the striker D.
  • the deformable disc or gasket is combined with a duct a preferably convergent, for example frusto conical, formed in the fuse body in front of the guiding duct a The outer edge thus normally prevented from moving towards the detonating percussion cap.
  • 2 moeeoa forward displacement may be prevented, for able carriage containing the mechanism, and example, by small projections a formed by the inertia of the percussion cap entering upon the fuse body,.beneath which the disc is into action when the carriage, liberated from secured. the projectile, is stopped by an obstacle.
  • the fuse When upon striking an obstacle, the opera- The fuse comprises a movable carriage tion of the fuse causes the arrangement D'E comprising a casing F with which the striker to be driven in under, the effect of the pressure D, which is placed in front of it, is integral- .of the gases from the percussion capj the ly formed.
  • the arrangement D'E comprising a casing F with which the striker to be driven in under, the effect of the pressure D, which is placed in front of it, is integral- .of the gases from the percussion capj the ly formed.
  • a deformabledisc E in' may be provided if desired.
  • the disc E in the form of a spherical cup or the like, probecoming deformed takes up the shape of Vided with a small central orifice e, the edge the seating a the arrangement D-E thus of which disc has a diameter equal-t0 that preventing in a perfect manner any commuof the container F and of the duct in which nication between the exploder detonator and the l r ay m Ve, i ecured by two Wings the outside, the arrangement D'E being fur-- E between a shoulder (2- upon the fuse body ther pressed upon its seating by the pressure and G over which the Outer g of Of the gases from the percussion cap P, so the saidfuse bOdXA is bent down.
  • the deformable dlsc in this case performs D and safety disc E, it is possible to make the three. fune n disc of material which will be readily de- 1 By mean of Its locked Wings E against formed as abov d rib d a d y t b fi-" whlch the casing or cover F presses, since the ciently strong to prevent any deformation of apex of the disc bears upon the percussion the same due to set back on firing the projec- Cap, the disc forms a stiffening member betile.
  • the flared percussion cap may advantathevelocity of the arrow so that the deform- 11o geously be retained in the fuse body, as shown able disc E, the central aperture 6 of which is 1n the figure, by a retaining socket H which closed by the point of the striker D, is fiatisv easily destroyed by the gases produced by tened between the percussion cap and the fuse the explosion of the percussion cap itself and body, thus forming a perfect wad or packing which'is secured to the said fuse bodyby bereventing any escape between the outer suring crimped in a groove a upon the latter.
  • 6 A is a fuse body forming the front metal- The free space between the movable carlic end of a tube B, into which it'is fitted by riage and the front edge or face of the arscrewing, as shown in Fig. 4, or simply by row ma he filled with a cork wad or plug 12 being slipped in and crimped, as shown'in I, glue upon the walls of the ring and if Fig. 6, filled with an explosive charge, the desired covered with 'a sheet of tin foil or rear end of this tube being formed by aset other suitable protecting material.
  • gasket means mounted in saidopening comprising a soft, malleable, metal disc adapted to be deformed into fixed flametight engagement with the walls thereof on actuation of said striker to prevent escape of flame in one direction through said opening.
  • a gasket adapted to be pressed into fixed tight engagement with said body by the gas pressure generated by detonation of said primer.
  • fuse mechanism in said opening, and a disk member mounted in said opening, the latter having converging walls adjacent said member, said disk member being deformed into fixed flame-tight engagement with said converging walls by detonation of said primer.
  • a fuse having an opening therein, a plurality of primer and striker mechanisms therein, and a piston member of soft, malleable material associated with one of said mechanisms, said opening having converging walls adjacent said piston, said member being adapted on actuation of another of said mechanisms to actuate said first named mechanism and to be deformed into fixed engagement with said converging walls of said opening.
  • a fuse having an opening therein, a plurality of primer and striker mechanisms in said opening, a disc member of soft malleable material mounted in said opening, one of said strikers being connected with said-member, the detonation of one of said mechanisms deforming said member into fixed engagement with a substantial length of the wall of said opening and thereby actuating said last named striker.
  • a primer and striker mechanism actuated on impact with an obstacle, a disk member deformed into engagement with the wall of the fuse on detonation of said primer, means for preventing motion of said disk outwardly of the device and a second primer and striker mechanism actuated by deformation of said disk.
  • a primer and striker mechanism actuated on impact with an obstacle, a disk member deformed into engagement with the wall of the fuse on detonation of said primer, and a second primer and striker mechanism actuated by deformation of said disk, said second primer being contained in a recess having inwardly diverging walls to direct the flame thereof to the bursting charge of the projectile.
  • a nose fuse for projectiles a chambered fuse body open to atmosphere on one side thereof, primer and striker mechanism mounted to slide in said chambered body and driven into the latter on impact with an object to detonate the projectile, a metal disc of soft malleable material deformable into flame-tight engagement with the walls of said chambered body, and means preventing movement of said disc toward the open side of said fuse body.
  • a fuse body having a chamber therein open to atmosphere at the nose of the projectile, striker mechanism mounted to slide therein and driv on into said chamber on impact with an object, a primer in said chamber to detonate the projectile on driving in said striker mechanism. and a deformable gasket positioned in said chamber between said striker mechanism and said primer and adapted on such impact to be forced into flame-tight engagement with the walls of said chamber to completely close the latter to the passage of gases outwardly of said chamber.
  • a fuse body having a chamber therein open to atmosphere at the nose of the projectile, striker mechanism in said open end, a detonating primer in said chamber, and a metal disc of soft malleable material in said chamber between said striker mechanism and primer, said disc being deformed on detonatlon of the NICOLAS EMILIEN METI-ILIN.
US123675A 1925-07-24 1926-07-20 Means for igniting the bursting charge of projectiles Expired - Lifetime US1706802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR276349T 1925-07-24

Publications (1)

Publication Number Publication Date
US1706802A true US1706802A (en) 1929-03-26

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US123675A Expired - Lifetime US1706802A (en) 1925-07-24 1926-07-20 Means for igniting the bursting charge of projectiles

Country Status (7)

Country Link
US (1) US1706802A (de)
BE (1) BE335051A (de)
CH (1) CH120020A (de)
DE (1) DE450061C (de)
FR (1) FR613520A (de)
GB (2) GB255853A (de)
NL (1) NL22053C (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919649A (en) * 1946-01-15 1960-01-05 William D Crozier Impact detonator
US3301185A (en) * 1965-08-03 1967-01-31 Foster James Lewis Well explosive devices
US3359901A (en) * 1964-07-14 1967-12-26 Diehl Explosive shell having contact fuse detonated by shearing of flange on fuse body
US3422764A (en) * 1965-04-23 1969-01-21 Messrs Gebruder Junghans Ag Rifled projectile fuze for practice projectiles
US4397239A (en) * 1981-03-12 1983-08-09 Honeywell Inc. Delay function module for ammunition
US4699058A (en) * 1986-05-09 1987-10-13 Interdyne Service Corporation Safing and arming device and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190844B (de) * 1962-06-15 1965-04-08 Otto Dunkel Sekundaerzuendvorrichtungen in einem Sprengkoerper
DE1218311B (de) * 1963-08-01 1966-06-02 Junghans Geb Ag Drallgeschosszuender fuer UEbungsgeschosse

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919649A (en) * 1946-01-15 1960-01-05 William D Crozier Impact detonator
US3359901A (en) * 1964-07-14 1967-12-26 Diehl Explosive shell having contact fuse detonated by shearing of flange on fuse body
US3422764A (en) * 1965-04-23 1969-01-21 Messrs Gebruder Junghans Ag Rifled projectile fuze for practice projectiles
US3301185A (en) * 1965-08-03 1967-01-31 Foster James Lewis Well explosive devices
US4397239A (en) * 1981-03-12 1983-08-09 Honeywell Inc. Delay function module for ammunition
US4699058A (en) * 1986-05-09 1987-10-13 Interdyne Service Corporation Safing and arming device and method

Also Published As

Publication number Publication date
NL22053C (de)
GB255853A (en) 1927-10-12
DE450061C (de) 1927-09-28
CH120020A (fr) 1927-05-02
FR613520A (fr) 1926-11-19
BE335051A (de)
GB276349A (de) 1927-10-12

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