GB999344A - Improvements to impact fuzes for spinning explosive projectiles, and more particularly to base-detonating fuzes of the type equipped with a mechanical auto-destruction device - Google Patents

Improvements to impact fuzes for spinning explosive projectiles, and more particularly to base-detonating fuzes of the type equipped with a mechanical auto-destruction device

Info

Publication number
GB999344A
GB999344A GB381064A GB381064A GB999344A GB 999344 A GB999344 A GB 999344A GB 381064 A GB381064 A GB 381064A GB 381064 A GB381064 A GB 381064A GB 999344 A GB999344 A GB 999344A
Authority
GB
United Kingdom
Prior art keywords
pin
impact
projectile
centrifugal force
weight
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
GB381064A
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.)
Brevets Aero Mecaniques SA
Original Assignee
Brevets Aero Mecaniques SA
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 Brevets Aero Mecaniques SA filed Critical Brevets Aero Mecaniques SA
Publication of GB999344A publication Critical patent/GB999344A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/14—Double fuzes; Multiple fuzes
    • F42C9/16—Double fuzes; Multiple fuzes for self-destruction of ammunition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/14—Double fuzes; Multiple fuzes
    • F42C9/16—Double fuzes; Multiple fuzes for self-destruction of ammunition
    • F42C9/18—Double fuzes; Multiple fuzes for self-destruction of ammunition when the spin rate falls below a predetermined limit, e.g. a spring force being stronger than the locking action of a centrifugally-operated lock

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vibration Dampers (AREA)
  • Air Bags (AREA)
  • Toys (AREA)

Abstract

999,344. Ammunition fuzes. BREVETS AERO-MECANIQUES S.A. Jan. 29, 1964 [Feb. 7, 1963], No. 3810/64. Heading F3A. A percussion fuze for rotated projectiles comprising self-destruction means has a casing 1 to be screwed into the base of a projectile, which casing houses a partitioning member 3, 3a through which projects a firing pin 4. The pin 4 has a flanged head 4a which houses locking balls 9 resting against inclined surfaces 10, 11. Before firing the projectile, the pin 4 is held in the retracted position, Fig. 1, by halfrings 6 bearing against the flange 4a, the halfrings being held together by a spirally-wound strip 7 surrounded by a split sleeve 8. On firing the projectile, the centrifugal force due to spin causes the parts 6, 7, 8 to spread outwardly (Fig. 3) and so free the forward path of the pin 4. While the projectile is accelerating, the pin is still held by the balls 9, which due to centrifugal force bear against the surface 10. If impact then occurs the inertia of the firing pin counteracts the centrifugal force and the striker spring 5 drives the pin 4 forward to initiate the fuze. If impact is delayed, the pin 4 moves when the centrifugal force becomes insufficient to counteract the spring 5. To reduce the sensitivity of the fuze to impact against insubstantial objects, so that it remains armed for tripping by a more violent impact, a braking weight 12 is provided, which can slide in the flange 4a. The second bearing surface 11 is formed at the forward end of this weight and when the projectile is fired, the weight is forced rearwardly against the casing 1. On impact the weight 12 thrusts the balls 9 against surface 10 unless centrifugal force has decreased sufficiently for the balls to have moved away from surface 10 and towards the axis, in which case the weight 12 reinforces the effect of the spring 5.
GB381064A 1963-02-07 1964-01-29 Improvements to impact fuzes for spinning explosive projectiles, and more particularly to base-detonating fuzes of the type equipped with a mechanical auto-destruction device Expired GB999344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU43151 1963-02-07

Publications (1)

Publication Number Publication Date
GB999344A true GB999344A (en) 1965-07-21

Family

ID=19723285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB381064A Expired GB999344A (en) 1963-02-07 1964-01-29 Improvements to impact fuzes for spinning explosive projectiles, and more particularly to base-detonating fuzes of the type equipped with a mechanical auto-destruction device

Country Status (7)

Country Link
BE (1) BE643121A (en)
CH (1) CH402673A (en)
DE (1) DE1206761B (en)
ES (1) ES296154A1 (en)
GB (1) GB999344A (en)
LU (1) LU43151A1 (en)
NL (2) NL6401011A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103527378A (en) * 2013-10-31 2014-01-22 北京汽车研究总院有限公司 Engine starting motor and vehicle
CN115682845A (en) * 2022-11-17 2023-02-03 南京理工大学 Mechanical trigger fuse for shooting shrapnel and penetration blasting bullet bottom

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535854A1 (en) * 1985-10-08 1987-04-09 Diehl Gmbh & Co HIT WITH A IGNITION CAPSULE
DE3835888A1 (en) * 1988-10-21 1990-04-26 Rheinmetall Gmbh GRENADE BULLET

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL32309C (en) * 1931-01-24

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103527378A (en) * 2013-10-31 2014-01-22 北京汽车研究总院有限公司 Engine starting motor and vehicle
CN103527378B (en) * 2013-10-31 2015-11-25 北京汽车研究总院有限公司 A kind of engine cranking motor and vehicle
CN115682845A (en) * 2022-11-17 2023-02-03 南京理工大学 Mechanical trigger fuse for shooting shrapnel and penetration blasting bullet bottom
CN115682845B (en) * 2022-11-17 2023-07-18 南京理工大学 Mechanical triggering fuze for bottom of blasting bullet of penetration blasting primary and secondary bullet

Also Published As

Publication number Publication date
LU43151A1 (en) 1964-08-07
NL6401011A (en) 1964-08-10
CH402673A (en) 1965-11-15
DE1206761B (en) 1965-12-09
BE643121A (en) 1964-05-15
NL123881C (en)
ES296154A1 (en) 1964-07-01

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