GB548542A - Improvements in key-controlled mechanism, such as clockwork time-fuzes or exploders - Google Patents

Improvements in key-controlled mechanism, such as clockwork time-fuzes or exploders

Info

Publication number
GB548542A
GB548542A GB480641A GB480641A GB548542A GB 548542 A GB548542 A GB 548542A GB 480641 A GB480641 A GB 480641A GB 480641 A GB480641 A GB 480641A GB 548542 A GB548542 A GB 548542A
Authority
GB
United Kingdom
Prior art keywords
key
hour
arbor
setting
slotted
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
GB480641A
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.)
S Smith and Sons Ltd
S Smith and Sons Motor Accesories Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons Motor Accesories Ltd
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 S Smith and Sons Ltd, S Smith and Sons Motor Accesories Ltd filed Critical S Smith and Sons Ltd
Priority to GB480641A priority Critical patent/GB548542A/en
Publication of GB548542A publication Critical patent/GB548542A/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
    • F42C21/00—Checking fuzes; Testing fuzes

Abstract

548,542. Ammunition fuzes. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and RUSSELL, V. J. S. April 10, 1941. No. 4806. [Class 9 (i)] A key for setting a time fuze comprises two relatively rotatable members 19, 20 which are secured against relatively longitudinal movement, the outer member 20 being provided with a spring detent 28 having a lip 29 adapted to spring outwardly beneath a flange on a key plate 31 on the fuze-setting mechanism. This flange is slotted at 34 so that after the key has been turned the correct amount the detent is released and the key can be extracted; during testing the key cannot be withdrawn if the operation is over a shorter period of time than the correct setting. The key is adapted to operate the minute and hour arbors 10 and 17 respectively of a clock gear 12, 13, the hour arbor carrying the timing disc 9. For this purpose the end of the inner member 19 of the key is slotted to engage the tang end 15 of the minute arbor while the outer portion 20 of the key and hour arbor 17 are cut away to interfit, so that the outer key member is rotated through the gearing as the key rotates.
GB480641A 1941-04-10 1941-04-10 Improvements in key-controlled mechanism, such as clockwork time-fuzes or exploders Expired GB548542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB480641A GB548542A (en) 1941-04-10 1941-04-10 Improvements in key-controlled mechanism, such as clockwork time-fuzes or exploders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB480641A GB548542A (en) 1941-04-10 1941-04-10 Improvements in key-controlled mechanism, such as clockwork time-fuzes or exploders

Publications (1)

Publication Number Publication Date
GB548542A true GB548542A (en) 1942-10-14

Family

ID=9784158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB480641A Expired GB548542A (en) 1941-04-10 1941-04-10 Improvements in key-controlled mechanism, such as clockwork time-fuzes or exploders

Country Status (1)

Country Link
GB (1) GB548542A (en)

Similar Documents

Publication Publication Date Title
GB1419720A (en) Universal time watch
GB548542A (en) Improvements in key-controlled mechanism, such as clockwork time-fuzes or exploders
GB1205963A (en) A calendar ring drive and date setting mechanism for a calendar timepiece
GB1187752A (en) An Improved Horological Movement
GB1397492A (en) Timepiece
GB1370547A (en) Self-winding mechanism for watches
GB1346545A (en) Sweep second-hand watch or clock movements
GB1216097A (en) A hands setting device in a watch mechanism
GB534241A (en) Improvements in or relating to the winding mechanism of watches and clocks
GB955499A (en) Improvements in or relating to clocks
GB206577A (en) Time controlled feed hopper for animals
GB779292A (en) Improvements in or relating to horological instruments
GB1455307A (en) Alarm clock mechanism
US2525510A (en) Winding and setting mechanism for watches
GB161324A (en) Improvements in winding and hand-setting mechanism for timepieces
GB1259667A (en) Calendar electric timepiece
US2488057A (en) Train stop mechanism
GB1306432A (en) Calender correction mechanism for a timepiece
GB1241936A (en) Hand setting mechanism for a timepiece
GB502315A (en) Hand setting devices for watches having a button winder
GB833798A (en) Improvements in or relating to alarm clocks
GB1357951A (en) Alarm clocks
GB468088A (en) Improvements in or relating to alarm clocks
FR2266910A1 (en) Calendar watch day and date advance mechanism - has two cooperating two armed levers and internally toothed wheel
GB484898A (en) Pendulum locking device for clocks