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GB773750A - Improvements in or relating to a clockwork movement for mechanical time fuzes incorporating means for holding and releasing the striker - Google Patents

Improvements in or relating to a clockwork movement for mechanical time fuzes incorporating means for holding and releasing the striker

Info

Publication number
GB773750A
GB773750A GB21685/55A GB2168555A GB773750A GB 773750 A GB773750 A GB 773750A GB 21685/55 A GB21685/55 A GB 21685/55A GB 2168555 A GB2168555 A GB 2168555A GB 773750 A GB773750 A GB 773750A
Authority
GB
United Kingdom
Prior art keywords
housing
casing
striker
bell
bolt
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
GB21685/55A
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.)
Mefina SA
Original Assignee
Mefina 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 Mefina SA filed Critical Mefina SA
Publication of GB773750A publication Critical patent/GB773750A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F3/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
    • G04F3/02—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with mechanical driving mechanisms
    • G04F3/025—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with mechanical driving mechanisms mechanically actuated
    • 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
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor
    • 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
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor
    • F42C9/041—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor the clockwork activating a security device, e.g. for unlocking the firing-pin
    • F42C9/045—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor the clockwork activating a security device, e.g. for unlocking the firing-pin and the firing-pin being activated by a spring
    • 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
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor
    • F42C9/048—Unlocking of clockwork mechanisms, e.g. by inertia or centrifugal forces; Means for disconnecting the clockwork mechanism from the setting mechanism
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/10—Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
    • G04B17/345—Details of the spiral roll

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Air Bags (AREA)
  • Lock And Its Accessories (AREA)
  • Toys (AREA)

Abstract

773,750. Projectile fuzes. MEFINA, SOC. ANON. July 27, 1955 [Sept. 4, 1954], No. 21685/55. Class 9 (1). Clockwork projectile fuze comprises a spring-stressed striker 1 held by a bolt 3 which is controlled by a bell 4 fixed to a shaft 11 connected to a driving spring 12. The shaft 11 carries a toothed annulus 17 which drives a regulator comprising gears 18, 19, 20, the gear 20 being in driving connection with a balance 22 suspended on the element 23. Enclosing the mechanism is a housing 13, 24 rotatable in the fuze casing 32, the part 24 being closed by a plate 25 which carries means for locking the balance as described in Specification 688,883. The fuze is set by rotating the housing 13, 24 relative to the casing 32, the setting being maintained by the friction between the housing and the casing and by a ring 50 screwed on to the threaded end of the casing 32. During storage a catch or pawl 38 engages a notch 40 in the bell to prevent its rotation, the pawl being held by a stop 44 secured to the base cover 33. At the same time, the striker bolt 3 is aligned with an opening 5 in the housing 13 and is locked by an element 36 secured to the housing. On setting the fuze, the bolt 3 is held by the housing 13 while the pawl 38 is moved away from the stop 44 but remains in the notch 40 until the projectile is fired. A mass 45 then sets back due to inertia and rocks the pawl out of engagement with the bell 4, the mass being held in the rear position by a spring 47 engaging with the casing 32. The bell 4 rotates until the opening 5 is aligned with the bolt, which then moves outwards under centrifugal force. The striker is thus freed and driven forward by its spring 2 ignites the primer (not shown).
GB21685/55A 1954-09-04 1955-07-27 Improvements in or relating to a clockwork movement for mechanical time fuzes incorporating means for holding and releasing the striker Expired GB773750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH773750X 1954-09-04

Publications (1)

Publication Number Publication Date
GB773750A true GB773750A (en) 1957-05-01

Family

ID=4535639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21685/55A Expired GB773750A (en) 1954-09-04 1955-07-27 Improvements in or relating to a clockwork movement for mechanical time fuzes incorporating means for holding and releasing the striker

Country Status (7)

Country Link
US (1) US2814251A (en)
BE (1) BE540595A (en)
CH (1) CH318215A (en)
DE (1) DE1009979B (en)
FR (1) FR1136319A (en)
GB (1) GB773750A (en)
NL (2) NL96235C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034516B (en) * 1956-12-01 1958-07-17 Junghans Geb Ag Igniter for twistless missile projectiles
CH351191A (en) * 1958-10-20 1960-12-31 Valerca Ets Trajectory safety device of a rotating projectile rocket
NL246591A (en) * 1959-01-17
US3114318A (en) * 1960-11-22 1963-12-17 Texaco Experiment Inc Rocket
CH475544A (en) * 1968-04-04 1969-07-15 Mefina Sa Mechanical rocket in time
SE391237B (en) * 1973-11-09 1977-02-07 Foerenade Fabriksverken TENDROR MECHANISM WITH INTEGRATED SAFETY FUNCTIONS
CH700131A1 (en) * 2008-12-18 2010-06-30 Hepia Haute Ecole Du Paysage Movement watch.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH156163A (en) * 1931-07-25 1932-07-31 Schwob Freres & Cie Sa Clockwork movement for time mechanical flares.
CH261416A (en) * 1941-06-20 1949-05-15 Delay Fernand Mechanical time fuse with clockwork movement.

Also Published As

Publication number Publication date
US2814251A (en) 1957-11-26
DE1009979B (en) 1957-06-06
NL96235C (en)
NL193898A (en)
FR1136319A (en) 1957-05-13
BE540595A (en)
CH318215A (en) 1956-12-31

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