GB1244712A - Improvements in or relating to clocks - Google Patents

Improvements in or relating to clocks

Info

Publication number
GB1244712A
GB1244712A GB609370A GB609370A GB1244712A GB 1244712 A GB1244712 A GB 1244712A GB 609370 A GB609370 A GB 609370A GB 609370 A GB609370 A GB 609370A GB 1244712 A GB1244712 A GB 1244712A
Authority
GB
United Kingdom
Prior art keywords
spindle
gears
ratchet
feb
seconds
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
GB609370A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1244712A publication Critical patent/GB1244712A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

1,244,712. Clocks. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 9, 1970 [Feb. 12, 1969], No.6093/70. Heading G3T. A clock driven by a piezo-electric synchronous vibrator through a pawl and a ratchet wheel 1 has a gear wheel 3 on ratchet spindle 2 meshing directly with a gear wheel 4 on seconds spindle 5. The seconds spindle 5 drives a minute spindle 11 through gears 6, 7, an auxiliary spindle 8, and gears 9, 10. An hour spindle 17 is in turn driven by gears 12, 13, a spindle 14, and gears 15, 16. A portion 23 of the auxiliary spindle 8 projects from the clock for setting of the hands, during which the gear 7 and hence the ratchet and motor are unaffected due to the presence of a spring clutch formed by a spindle shoulder 20 and a disc 19 pressed by an adjustable cup-spring 18. For figure see next page
GB609370A 1969-02-12 1970-02-09 Improvements in or relating to clocks Expired GB1244712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691906945 DE1906945A1 (en) 1969-02-12 1969-02-12 Clockwork with an oscillating motor

Publications (1)

Publication Number Publication Date
GB1244712A true GB1244712A (en) 1971-09-02

Family

ID=5725004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB609370A Expired GB1244712A (en) 1969-02-12 1970-02-09 Improvements in or relating to clocks

Country Status (3)

Country Link
DE (1) DE1906945A1 (en)
FR (1) FR2030426A7 (en)
GB (1) GB1244712A (en)

Also Published As

Publication number Publication date
DE1906945A1 (en) 1970-09-03
FR2030426A7 (en) 1970-11-13

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