GB839665A - Improvements in or relating to fuzes for projectiles intended to spin in flight - Google Patents

Improvements in or relating to fuzes for projectiles intended to spin in flight

Info

Publication number
GB839665A
GB839665A GB5609/58A GB560958A GB839665A GB 839665 A GB839665 A GB 839665A GB 5609/58 A GB5609/58 A GB 5609/58A GB 560958 A GB560958 A GB 560958A GB 839665 A GB839665 A GB 839665A
Authority
GB
United Kingdom
Prior art keywords
piston
pin
abutment
spiral
spring
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
GB5609/58A
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.)
Gebr Junghans AG
Original Assignee
Gebr Junghans AG
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 Gebr Junghans AG filed Critical Gebr Junghans AG
Publication of GB839665A publication Critical patent/GB839665A/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
    • 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
    • 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)
  • Toys (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Springs (AREA)

Abstract

839,665. Ammunition fuzes. JUNGHANS, H., and JUNGHANS A.G., GEB. Feb. 20, 1958 [Feb. 20, 1957], No. 5609/58. Class 9(1) A direct action percussion fuze for spinstabilized projectiles comprises a two-part casing 10, 11 housing a striker 12, a firing pin 13 and a percussion cap 14 together with a centrifugally released safety device for locking the firing pin. The safety device comprises a piston 15 housed in a cylindrical recess 10a and supporting a spiral member 16 enclosing four balls 17 and a plate 18 fitted loosely around the pin 13. A plate 20 held in place by the casing has an abutment 19 pressing on the balls 17 and a spring 24 supports the piston, which is provided with a guide flange 15b and a circular rib 15c bearing on a spiral member 21. The member 21 surrounds a bushing 22 having a slot housing a safety catch 23, which engages a collar on the firing pin. After firing the projectile, the spiral member 16 due to the centrifugal force produced by the spin moves outwards until it bears against the wall of the recess 10a and when the balls 17 have moved beyond the abutment 19, the spring 24, thrusts the piston 15 forward and so releases the member 21. Member 21 then unwinds and the catch 23 releases the pin 13 leaving the fuze armed for operation on impact. A self-destruction device Z operated by decreasing spin may be provided on the plate 20 and comprises a lever Z 1 locking a spring-stressed striker member Z 2 . The lever Z 1 is moved by centrifugal force to release the striker Z 2 , which is then driven against a ring Z 4 on the pin 13. In a modification, the balls 17 are replaced by segments which form a core for the first spiral member. The piston is given a conical under-surface. which bears against the sloping upper surfaces of ring segments taking the place of the spring 24. On release of the piston by the first spiral member, the ring segments move outwards and push the piston forward to release the second spiral member as before. In Fig. 8, the piston is replaced by a bell-shaped member 50 having a cylindrical hub 50a separated from an abutment 51a on plate 51 by a locking member 54, the hub 50a and abutment 51a being used as the core of two spiral members 52, 53 functioning as the member 16 in Fig. 1. The bushing 22 housing the pin locking member 23 is the core of a spiral member 55 on which rests a sheet metal bridge 56 serving as abutment for a spring 57 urging the bell 50 forwards. Arms 50b on the bell project through slots in the bridge to restrain the member 55. The members 52, 53 may be replaced by a single member of inwardly decreasing width.
GB5609/58A 1957-02-20 1958-02-20 Improvements in or relating to fuzes for projectiles intended to spin in flight Expired GB839665A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ12857A DE1044677B (en) 1957-02-20 1957-02-20 Time backup for swirl fuse

Publications (1)

Publication Number Publication Date
GB839665A true GB839665A (en) 1960-06-29

Family

ID=7199170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5609/58A Expired GB839665A (en) 1957-02-20 1958-02-20 Improvements in or relating to fuzes for projectiles intended to spin in flight

Country Status (5)

Country Link
US (1) US3030886A (en)
BE (1) BE564754A (en)
CH (1) CH363264A (en)
DE (1) DE1044677B (en)
GB (1) GB839665A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929055A (en) * 1963-04-12 1975-12-30 Us Navy Explosive charge pistol
DE1262831B (en) * 1966-02-21 1968-03-07 Junghans Ges Mit Beschraenkter Twist fuse with head pin bolt
US3730100A (en) * 1971-07-12 1973-05-01 Us Army Mechanical anti-disturbance device
GB1422990A (en) * 1973-06-13 1976-01-28 Diehl Safety device on an electrical projectile fuze
DE2457947A1 (en) * 1974-12-07 1976-06-10 Rheinmetall Gmbh DETONATOR SECURITY FOR DRALL FLOORS
FR2449265A1 (en) * 1979-02-16 1980-09-12 Haut Rhin Manufacture Machines Rotating projectile firing pin lock - is operated by spiral spring around pin unrolling under effect of centrifugal force
FR2469693A1 (en) * 1979-08-13 1981-05-22 Haut Rhin Manufacture Machines Safety catch for rotating projectile - has firing pin held by spiral spring which unwinds under centrifugal force
DE3151470A1 (en) * 1981-12-24 1983-07-14 Gebrüder Junghans GmbH, 7230 Schramberg BAND FOR SPIRAL-RELATED IGNITION OF BUMPER IGNITIONS
EP0139160B1 (en) * 1983-10-19 1986-12-30 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Percussion fuze for spinning missiles
DE3739368A1 (en) * 1987-11-20 1989-06-01 Dynamit Nobel Ag PRE-TUBE SECURITY ON A FLOOR WITH AN IMPELLER

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT77566B (en) * 1911-05-20 1919-08-11 Eduard Bazika Impact fuse.
US1366148A (en) * 1918-04-24 1921-01-18 William A Zeidler Method of connecting two pieces of metal or like material
US1551963A (en) * 1925-04-04 1925-09-01 Schneider & Cie Percussion fuse
BE394124A (en) * 1932-12-20
BE448654A (en) * 1942-02-11
BE461813A (en) * 1945-01-17
US2701527A (en) * 1948-07-06 1955-02-08 Louis P Granath Selective delayed-action fuze
US2715873A (en) * 1950-01-25 1955-08-23 Parke H Thompson Fuze
US2790390A (en) * 1952-04-29 1957-04-30 Kenneth L Baker Delay arming, self-destroying and point detonating fuze device
US2873678A (en) * 1955-02-25 1959-02-17 Magnavox Co Power generating device for projectiles

Also Published As

Publication number Publication date
BE564754A (en)
CH363264A (en) 1962-07-15
DE1044677B (en) 1958-11-20
US3030886A (en) 1962-04-24

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