GB289775A - Improvements relating to electric watches or clocks - Google Patents

Improvements relating to electric watches or clocks

Info

Publication number
GB289775A
GB289775A GB12033/28A GB1203328A GB289775A GB 289775 A GB289775 A GB 289775A GB 12033/28 A GB12033/28 A GB 12033/28A GB 1203328 A GB1203328 A GB 1203328A GB 289775 A GB289775 A GB 289775A
Authority
GB
United Kingdom
Prior art keywords
armature
contact
winding
spring
pawl
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
GB12033/28A
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
Publication of GB289775A publication Critical patent/GB289775A/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
    • G04C3/042—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 mechanical coupling
    • G04C3/045—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 mechanical coupling with constant impulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

289,775. Mombur, G. April 30, 1927, [Convention date]. Electric clocks and watches.-The balance of an electric clock or watch is given an impulse at each complete oscillation by electromagnetic means which include a periodically stressed spring and a magnet having two opposite windings adapted to neutralize one another. The arcs which the balance wheel describes on either side of the position of rest are unequal. 'The arbor 4 of the balance 5 carries a spring arm having a contact 7 adapted to meet a contact 8 in the circuit of the winding 12<b> of the magnet 11, the armature 10 of which (pivoted at 9) carries the contact 8. The armature lever also has a pawl 17 driving the ratchet 19 for the clock train. The winding 12<a> is always energized so that normally the armature is attracted, stressing the spring 13. When contact 7, 8 meet, winding 12<b> is energized to neutralize winding 12<a>, armature 10 is released and the spring 13 draws the pawl 17 behind another tooth and imparts an impulse to the balance wheel through the arm carrying the contact 7. When the armature is re-attracted the pawl 17 drives the wheelwork.
GB12033/28A 1927-04-30 1928-04-24 Improvements relating to electric watches or clocks Expired GB289775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR289775X 1927-04-30

Publications (1)

Publication Number Publication Date
GB289775A true GB289775A (en) 1928-12-06

Family

ID=8887595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12033/28A Expired GB289775A (en) 1927-04-30 1928-04-24 Improvements relating to electric watches or clocks

Country Status (1)

Country Link
GB (1) GB289775A (en)

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