GB830977A - Improvements in or relating to electric clock movements - Google Patents

Improvements in or relating to electric clock movements

Info

Publication number
GB830977A
GB830977A GB1695056A GB1695056A GB830977A GB 830977 A GB830977 A GB 830977A GB 1695056 A GB1695056 A GB 1695056A GB 1695056 A GB1695056 A GB 1695056A GB 830977 A GB830977 A GB 830977A
Authority
GB
United Kingdom
Prior art keywords
electromagnet
alarm
drives
balance
armature
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
GB1695056A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1695056A priority Critical patent/GB830977A/en
Publication of GB830977A publication Critical patent/GB830977A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G04C3/062—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling contacts, the gear-train or several gear-trains being driven electro-magnetically thereby

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

830,977. Oscillating electric motors. RICH, W. June 1, 1956, No. 16950/56. Class 35. [Also in Group XVIII] A battery-driven electric clock comprises an electromagnetically maintained balance and a polarized armature which drives the train and motionwork. The balance comprises an armature 1, Fig. 1, mounted on a spindle 2 and oscillating in a first magnetic field 7 of an electromagnet 8. Rotating in step-by-step manner in a second magnetic field 9 of the electromagnet 8 is a polarized armature 5 which, through gearing 10-15, drives the minute hand 17 connected through the motion work to the hour hand 23. The minute wheel 15 is frictionally mounted on the shaft 16 to allow for hand setting and is fixed to a pinion 24 which meshes with a gear 25 to wind up an alarm spring within a barrel 27 which drives the alarm train 29, 30 controlling an alarm anchor and hammer 37. The alarm release is effected by a snail cam and follower arrangement, Fig. 2 (not shown). The contact arrangement for periodic energization of the electromagnet 8 comprises two pins 48, 49 which co-operate respectively with two spring fingers 46, 47 to form two switches in circuit with the battery 56 and the coils 52, 53 of the electromagnet 8. The switches 46, 48 and 47, 49 are allowed to close alternately by oscillation of a member 45. A pin 43 extends from the member 45 and co-operates with a pin 42 on the balance 1.
GB1695056A 1956-06-01 1956-06-01 Improvements in or relating to electric clock movements Expired GB830977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1695056A GB830977A (en) 1956-06-01 1956-06-01 Improvements in or relating to electric clock movements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1695056A GB830977A (en) 1956-06-01 1956-06-01 Improvements in or relating to electric clock movements

Publications (1)

Publication Number Publication Date
GB830977A true GB830977A (en) 1960-03-23

Family

ID=10086581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1695056A Expired GB830977A (en) 1956-06-01 1956-06-01 Improvements in or relating to electric clock movements

Country Status (1)

Country Link
GB (1) GB830977A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171991A (en) * 1962-01-08 1965-03-02 Baumer Herbert Electromagnetically actuated tuning fork drive adapted for clockwork
GB2187574A (en) * 1986-03-03 1987-09-09 Rhythm Watch Co Timepiece movement
GB2212632A (en) * 1986-03-03 1989-07-26 Rhythm Watch Co Timepiece movement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171991A (en) * 1962-01-08 1965-03-02 Baumer Herbert Electromagnetically actuated tuning fork drive adapted for clockwork
GB2187574A (en) * 1986-03-03 1987-09-09 Rhythm Watch Co Timepiece movement
GB2212632A (en) * 1986-03-03 1989-07-26 Rhythm Watch Co Timepiece movement
GB2187574B (en) * 1986-03-03 1989-11-08 Rhythm Watch Co Timepiece movement
GB2212632B (en) * 1986-03-03 1989-11-08 Rhythm Watch Co Timepiece movement

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