GB298220A - Improvements in or relating to percussion fuses for projectiles - Google Patents

Improvements in or relating to percussion fuses for projectiles

Info

Publication number
GB298220A
GB298220A GB21473/28A GB2147328A GB298220A GB 298220 A GB298220 A GB 298220A GB 21473/28 A GB21473/28 A GB 21473/28A GB 2147328 A GB2147328 A GB 2147328A GB 298220 A GB298220 A GB 298220A
Authority
GB
United Kingdom
Prior art keywords
thimble
safety member
firing pin
primer
fuze
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
GB21473/28A
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.)
Schwob Freres & Cie SA
Original Assignee
Schwob Freres & Cie 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 Schwob Freres & Cie SA filed Critical Schwob Freres & Cie SA
Publication of GB298220A publication Critical patent/GB298220A/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
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
    • F42C15/22—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using centrifugal force
    • 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
    • F42C1/04—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze operating by inertia of members on impact
    • F42C1/06—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze operating by inertia of members on impact for any direction of impact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/24—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
    • F42C15/26—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means using centrifugal force
    • 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
    • F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Air Bags (AREA)

Abstract

298,220. Schwob FrÞres et Cie Soc. Anon., and Varaud, A. Oct. 7, 1927, [Convention date]. Projectile fuzes.-Relates to percussion fuzes of the kind comprising a primer 7 and a firing pin 1 kept apart before discharge by a safety member 8 released by the set back of an inertia bolt 12 on discharge and then moved outwards by centrifugal force during flight. According to the invention, the safety member 8 is connected by a train of gear wheels to an escapement wheel against which an eccentrically disposed anchor 17 bears by centrifugal force, thereby causing a delay in the outward movement of the safety member proportional to the speed of rotation of the projectile, so that this member does not complete its stroke until the projectile is in steady flight; moreover, the end of the safety member is tapered at 11 to allow the firing pin 1 under the action of air pressure to approach the primer 7 gradually at the end of the arming stroke of the safety member. The impact occurs and firing takes place sensitively and without delay. The firing pin 1 may be mounted in a thimble 2 against a spring 4, the thimble being itself mounted against a weak spring 21. The thimble is protected by a cap 18 and the inertia bolt 12 is normally locked by a pin 19 attached to a screw plug 22, or to a segment lying in a groove in the side of the fuze body. These restraints must be removed before the fuze is used. Premature, impact on the thimble 2 before the safety member 8 has released the firing pin 1 compresses the springs 4, 21 without causing premature explosion. After arming is completed, the fuze is fired on impact by the blow on the thimble 2 or the momentum of the primer 7. In a modification, the primer 7 is fixed to the fuze body, and the thimble 2 is attached to the firing pin 1 without the interposition of the spring 4.
GB21473/28A 1927-07-19 1928-07-24 Improvements in or relating to percussion fuses for projectiles Expired GB298220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH126843T 1927-07-19

Publications (1)

Publication Number Publication Date
GB298220A true GB298220A (en) 1929-04-11

Family

ID=4566048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21473/28A Expired GB298220A (en) 1927-07-19 1928-07-24 Improvements in or relating to percussion fuses for projectiles

Country Status (6)

Country Link
US (1) US1726325A (en)
CH (1) CH126843A (en)
DE (1) DE498570C (en)
FR (1) FR651683A (en)
GB (1) GB298220A (en)
NL (1) NL29902C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145202A (en) * 1983-06-24 1985-03-20 Valsella Meccanotecnica Spa Mechanical mine-triggering device actuated by a trip wire

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL49507C (en) * 1937-11-06
US2912933A (en) * 1944-01-24 1959-11-17 Rabinow Jacob Safety device
US2452562A (en) * 1944-02-29 1948-11-02 John C Gillette Fuse
US2531121A (en) * 1944-10-05 1950-11-21 Borg George W Corp Mechanical time fuse
US2446545A (en) * 1945-04-17 1948-08-10 James F Mecaslin Delay arming device
US2448228A (en) * 1945-05-24 1948-08-31 Borg George W Corp Delay booster arming mechanism
US2475730A (en) * 1946-09-03 1949-07-12 Clarence W Wandrey Projectile offset
US2486362A (en) * 1946-11-07 1949-10-25 Us Sec War Acceleration switch
US2479851A (en) * 1947-05-06 1949-08-23 Borg George W Corp Delayed arming device for projectiles
US2779287A (en) * 1951-11-01 1957-01-29 Laurence M Andrews Contact fuze
US2709962A (en) * 1952-05-09 1955-06-07 Jr Walter Funk Mortar fuse
US2789507A (en) * 1952-06-14 1957-04-23 Mach Tool Works Oerlikon Fuze for rocket projectiles
US2789508A (en) * 1953-02-18 1957-04-23 Rove Gene Safety and arming mechanism
DE1020259B (en) * 1954-06-08 1957-11-28 Jean Rosselet Movement delay of the ignition sharpening
DE1045285B (en) * 1955-01-31 1958-11-27 Junghans Geb Ag Rifle fuse
US2870713A (en) * 1955-06-09 1959-01-27 Saloranta Arvo Ensio Fuse for shells
US2821925A (en) * 1956-04-16 1958-02-04 Ufa Universal Finanzierungs Au Double-acting percussion fuze provided with a safety device for projectiles
DE1053358B (en) * 1956-04-17 1959-03-19 Ufa Universal Finanzierungs An Impact fuse for particularly twistless projectiles with a toothed safety slide
US2978984A (en) * 1958-04-10 1961-04-11 Czajkowski Norman Inertia time delay mechanism
US2981192A (en) * 1959-06-19 1961-04-25 Andrew J Grandy Extensible bore safety pin
US3013496A (en) * 1960-09-02 1961-12-19 Harold G Wenig Centrifugal drive means for missile and fuze applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145202A (en) * 1983-06-24 1985-03-20 Valsella Meccanotecnica Spa Mechanical mine-triggering device actuated by a trip wire

Also Published As

Publication number Publication date
NL29902C (en)
CH126843A (en) 1928-08-16
DE498570C (en) 1930-05-28
US1726325A (en) 1929-08-27
FR651683A (en) 1929-02-25

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