GB688883A - Improvements in or relating to locking mechanism for the clockwork movement of time fuzes - Google Patents

Improvements in or relating to locking mechanism for the clockwork movement of time fuzes

Info

Publication number
GB688883A
GB688883A GB12859/51A GB1285951A GB688883A GB 688883 A GB688883 A GB 688883A GB 12859/51 A GB12859/51 A GB 12859/51A GB 1285951 A GB1285951 A GB 1285951A GB 688883 A GB688883 A GB 688883A
Authority
GB
United Kingdom
Prior art keywords
clockwork
levers
locking
fuze
movement
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
GB12859/51A
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 GB688883A publication Critical patent/GB688883A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Emergency Lowering Means (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Mechanical Control Devices (AREA)

Abstract

688,883. Projectile fuzes. MEFINA SOC. ANON. May 31, 1951 [July 10, 1950], No. 12859/51. Class 9(i) A clockwork time fuze is provided with locking means comprising at least two centrifugal clockwork-movement-locking levers arranged symmetrically one on each side of the axis of the fuze, each being pivoted eccentrically and subjected to spring action tending to maintain the member in the locking position, the two members being in mutual engagement so that each member can only move out of the locking position when the other does. The two locking levers 1, 1α are pivoted at 2, 2a on the upper frame plate 11 of the clockwork movement and carry stop pins 3, 3a passing through arcuate openings 12, 12a in the plate 11. The pins engage notches 8, 8a of the balance wheel 7 of the clockwork, which is thus locked the levers being urged to the locking position by springs 6, 6a. Each lever has a front nose, 4, 4a engaging a rear nose 5, 5a at the end of the long arm of the other lever, so that the levers can only move outwardly under the action of centrifugal force sufficient to overcome the action of the springs 6, 6a, i.e. after firing of the projectile in which the fuze is fitted. The stop pins 3, 3a then move along their slots to take up positions 3<SP>1</SP>, 3<SP>11</SP>. More than two co-operating locking levers may be provided and they may control some other part of the clockwork movement insead of the balance wheel.
GB12859/51A 1950-07-10 1951-05-31 Improvements in or relating to locking mechanism for the clockwork movement of time fuzes Expired GB688883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH688883X 1950-07-10

Publications (1)

Publication Number Publication Date
GB688883A true GB688883A (en) 1953-03-18

Family

ID=4529082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12859/51A Expired GB688883A (en) 1950-07-10 1951-05-31 Improvements in or relating to locking mechanism for the clockwork movement of time fuzes

Country Status (7)

Country Link
US (1) US2741185A (en)
BE (1) BE504037A (en)
CH (1) CH284825A (en)
DE (1) DE903787C (en)
FR (1) FR1038487A (en)
GB (1) GB688883A (en)
NL (2) NL76931C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989867A (en) * 1955-10-10 1961-06-27 Rockwell Mfg Co Water meter with frangible cover

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB598266A (en) * 1945-07-13 1948-02-13 Paul Schweizer Improvements in clockwork fuzes for ammunition projectiles
CH27817A (en) * 1902-11-17 1904-02-29 Carl Baeker Time fuse for artillery shells
US988610A (en) * 1909-07-28 1911-04-04 Krupp Ag Impact-fuse.
NL42013C (en) * 1935-01-18
US2097836A (en) * 1935-07-27 1937-11-02 Junghans Helmut Mechanical time fuse having a centrifugal drive
NL60030C (en) * 1941-02-27

Also Published As

Publication number Publication date
US2741185A (en) 1956-04-10
NL156252B (en)
BE504037A (en)
CH284825A (en) 1952-08-15
FR1038487A (en) 1953-09-29
NL76931C (en)
DE903787C (en) 1954-02-11

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