GB827120A - Improvements in and relating to a percussion fuze - Google Patents

Improvements in and relating to a percussion fuze

Info

Publication number
GB827120A
GB827120A GB586858A GB586858A GB827120A GB 827120 A GB827120 A GB 827120A GB 586858 A GB586858 A GB 586858A GB 586858 A GB586858 A GB 586858A GB 827120 A GB827120 A GB 827120A
Authority
GB
United Kingdom
Prior art keywords
balls
spring
primer
tube
carrier
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
GB586858A
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.)
Hotchkiss-Brandt
Original Assignee
Hotchkiss-Brandt
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 to FR1086594X priority Critical
Application filed by Hotchkiss-Brandt filed Critical Hotchkiss-Brandt
Publication of GB827120A publication Critical patent/GB827120A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/02Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
    • F42C9/06Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by flow of fluent material, e.g. shot, fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C1/00Impact fuzes, i.e. fuzes actuated only by ammunition impact
    • F42C1/02Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze
    • F42C1/04Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze operating by inertia of members on impact
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/18Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved
    • F42C15/184Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a slidable carrier
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/20Arming-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
    • F42C15/22Arming-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/28Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
    • F42C15/285Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids stored within the fuze housing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/14Double fuzes; Multiple fuzes
    • F42C9/16Double fuzes; Multiple fuzes for self-destruction of ammunition

Abstract

827,120. Ammunition fuzes. HOTCHKISSBRANDT. Feb. 24, 1958 [Feb. 26, 1957], No. 5868/58. Class 9(1) A direct action fuze provided with selfdestruction means and intended for use in rockets and like self-prepelled missiles has a body 1 screwed to a nose-cap 4 having a stepped axial bore housing the percussion elements and separated by a partition 10 from a transverse cylindrical bore housing a detonator and communicating with an aperture 12 containing a relay charge D to ignite a booster charge E used to fire the main explosive charge. A cylindrical guide tube 14 bearing against a shoulder 6 divides the axial bore in the fuze into an inner chamber containing firing means A and a peripheral chamber housing a safety device B which holds the means A inoperative before launching. The firing unit A comprises a primer carrier 15 and a striker mechanism movable relatively to one another but held apart by locking balls 27, 57. The carrier 15 has a stepped outer surface with a shoulder 19 corresponding to a shoulder 22 within the guide tube 14. Leading from the primer 23 in the carrier 15 is a flash tube 24 which extends into a recess in the detonator slide 59 to hold the detonater at safe. The device B comprises a spring-pressed sleeve 30 holding the balls 27 in position and a tube 32 having a zig-zag groove 34 engaged by a stud 33. The striker mechanism consists of a forward part P 1 and a rearward part P 2 , the part P 1 comprising a cylinder 38 to the forward end of which a shear plate 40 is riveted, the plate 40 being secured in the nose of the fuze by a flange 41. A liquid 45, such as a silicone, filling the cylinder 38 is retained therein by a spring-stressed piston 42 having a flatted surface 44 past which the liquid can escape when the piston moves forwards. A washer 47, e.g. of rubber, provides a fluid seal between the piston and the rear end 48 of the cylinder. Part P 2 consists of a striker pin 49 extending through a ring 52 pressed against the balls 57 by a spring 55 and secured to the pin 49 by a shear pin 53. A bolt 65 projecting into a groove 66 prevents rotation of the detonator slide 59. On discharge of the projectile the tube 32 sets back due to inertia, its rearward motionbraked by the stud 33, and forces the sleeve 30 rearwardly to free the balls 27. When the tube 32 reaches its rearmost position, resilient tabs 36 on a sleeve 35 spring into a recess 37 to prevent a return movement of the tube 32. Upon escape of the balls 27, the primer carrier 15 is thrust forward by its spring together with the part P 2 of the striker mechanism, the forward motion being controlled by the dash-pot 38, 42. On withdrawal of the tube 24, the slide 59 moves until the detonator 62 is aligned with the primer 23 and the relay D. The fuze is thus armed for operation on impact, at which the plate 40 shears and drives the striker rearwardly, the motion being delayed by the dash-pot. At the same time the pin 53 shears so that the pin 49 passes through the ring 52 to hit the primer 23. If impact does not occur before forward movement of the carrier 15 carries the balls 57 past the shoulder 22, the balls move outwards and release the part P 2 which is then driven against the primer 23 by its spring 55 to produce self-destruction of the projectile. In a modification for projectiles fired from guns, the arming delay groove 33 and stud 34 are omitted, Fig. 5. The sleeve 30a moves rearwardly when the projectile is fired and so frees the balls 27 and compresses its support spring 31. Tabs 36 engage a recess 37a to lock the sleeve 30a in the rear position. Spring 26 drives the primer carrier 15a and part P 2 forward as in the first embodiment. The cylinder 38 may be made of an aluminium alloy or brass and the piston of methyl polymethacrylate if the liquid 45 is a silicone of viscosity 1-5 between +60‹C. and -40‹C. Specification 815,268 is referred to.
GB586858A 1957-02-26 1958-02-24 Improvements in and relating to a percussion fuze Expired GB827120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1086594X 1957-02-26

Publications (1)

Publication Number Publication Date
GB827120A true GB827120A (en) 1960-02-03

Family

ID=9612863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB586858A Expired GB827120A (en) 1957-02-26 1958-02-24 Improvements in and relating to a percussion fuze

Country Status (7)

Country Link
US (1) US2938463A (en)
BE (1) BE565048A (en)
CH (1) CH341413A (en)
DE (1) DE1086594B (en)
FR (1) FR1168682A (en)
GB (1) GB827120A (en)
NL (2) NL101335C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092000A (en) * 1973-12-19 1975-07-23
JPS5560200A (en) * 1978-07-27 1980-05-07 Redon Trust Electric initiating device for mechanical impact detonator
GB2175675A (en) * 1985-05-24 1986-12-03 Bofors Ab Projectile fuse

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058419A (en) * 1959-07-16 1962-10-16 Atlas Chem Ind Blasting assembly
US3077160A (en) * 1960-09-09 1963-02-12 William F Williams G-actuated air controlled time delay
US3118379A (en) * 1960-11-23 1964-01-21 Fuze for a gyratory projectile
US3118378A (en) * 1960-12-19 1964-01-21 Percussion fuze for rocket
NL128333C (en) * 1961-10-31
US3174246A (en) * 1962-08-16 1965-03-23 Currency Prot Inc Robbery protective device with time delay means
US3182594A (en) * 1963-05-17 1965-05-11 Harris Wilbur Temperature independent timing device, dashpot type
US3296969A (en) * 1964-10-14 1967-01-10 Thiokol Chemical Corp Time delay initiator
GB1165754A (en) * 1965-10-25 1969-10-01 Bombrini Parodi Delfino Spa Mechanical Percussion Fuse for Rockets
DE1262831B (en) * 1966-02-21 1968-03-07 Junghans Ges Mit Beschraenkter Twist fuse with head pin bolt
US3339488A (en) * 1966-04-18 1967-09-05 Avco Corp Pneumatic safety and arming mechanism for fuzes
US3356028A (en) * 1966-06-28 1967-12-05 Robert W Heinemann Safety device for an explosive fuze
US3782290A (en) * 1972-01-19 1974-01-01 Us Navy Ordnance arming assembly
US3945323A (en) * 1974-06-14 1976-03-23 The United States Of America As Represented By The Secretary Of The Army Impact and self-destruct fuze
US4078496A (en) * 1976-11-05 1978-03-14 The United States Of America As Represented By The Secretary Of The Army Antirunaway device for hand grenade fuze
US4421031A (en) * 1981-05-01 1983-12-20 Pocal Industries, Inc. Percussion fuse for training projectiles
CH655790A5 (en) * 1984-01-25 1986-05-15 Mefina Sa Rocket shot a percussion.
DE3446098A1 (en) * 1984-12-18 1986-06-26 Junghans Gmbh Geb BULLET IGNITION
US4643096A (en) * 1985-11-22 1987-02-17 Unidynamics Phoenix, Inc. Safety and arming mechanism
US4782757A (en) * 1987-09-11 1988-11-08 Carter Research And Development Technological Systems Incorporated Fuse assembly for military projectile
DE3901525A1 (en) * 1989-01-20 1990-07-26 Junghans Gmbh Geb IGNITION FOR A BOMBLET
GB0301690D0 (en) * 2003-01-24 2003-02-26 Olympic Technologies Ltd Safety system
BE1016094A3 (en) * 2004-05-14 2006-03-07 Zeebrugge Forges Sa Device for self-destruction of rocket under ammunition.

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE80580C (en) *
US972425A (en) * 1904-08-23 1910-10-11 Bethlehem Steel Corp Fuse for explosive projectiles.
US896135A (en) * 1904-12-19 1908-08-18 Bethlehem Steel Corp Mechanical time-fuse.
FR731909A (en) * 1931-04-17 1932-09-10 Schneider Et Cie Percussion fuze with device preventing the operation of the firing mechanism within a determined distance from the muzzle of the barrel
NL32380C (en) * 1931-11-30
US1975809A (en) * 1932-12-01 1934-10-09 Alfred F Teitscheid Fuse for projectiles
DE609374C (en) * 1933-01-03 1935-02-13 Helmut Junghans Liquid timer
BE404852A (en) * 1933-10-09
US2076602A (en) * 1936-06-24 1937-04-13 Harold G Towner Fuse for projectiles
US2118062A (en) * 1937-09-21 1938-05-24 David L Woodberry Bore-safe fuse
US2331633A (en) * 1939-06-20 1943-10-12 Henry W Spooner Fuse for projectiles
US2368747A (en) * 1940-08-31 1945-02-06 Ford Instr Co Inc Fuse
US2750890A (en) * 1946-10-01 1956-06-19 George H Leonard Time delay fuze for a mine
US2750888A (en) * 1946-11-13 1956-06-19 Robert O Wynn Long delay bomb tail fuze
BE503034A (en) * 1950-05-20
CH284118A (en) * 1950-07-31 1952-07-15 Oerlikon Buehrle Ag Impact fuse for rocket projectiles.
NL239855A (en) * 1953-12-24 Brandt Soc Nouv Ets
BE539348A (en) * 1954-11-05
FR1127133A (en) * 1955-05-26 1956-12-10 Arming delay device for projectile rockets and similar applications

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092000A (en) * 1973-12-19 1975-07-23
JPS5436800B2 (en) * 1973-12-19 1979-11-10
JPS5560200A (en) * 1978-07-27 1980-05-07 Redon Trust Electric initiating device for mechanical impact detonator
GB2175675A (en) * 1985-05-24 1986-12-03 Bofors Ab Projectile fuse

Also Published As

Publication number Publication date
FR1168682A (en) 1958-12-12
NL225272A (en)
NL101335C (en)
CH341413A (en) 1959-09-30
US2938463A (en) 1960-05-31
DE1086594B (en) 1960-08-04
BE565048A (en)

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