GB808076A - Improvements in electric clocks - Google Patents

Improvements in electric clocks

Info

Publication number
GB808076A
GB808076A GB3378555A GB3378555A GB808076A GB 808076 A GB808076 A GB 808076A GB 3378555 A GB3378555 A GB 3378555A GB 3378555 A GB3378555 A GB 3378555A GB 808076 A GB808076 A GB 808076A
Authority
GB
United Kingdom
Prior art keywords
pendulum
coil
contacts
blade
swings
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
GB3378555A
Inventor
Cheng Yick Chi
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.)
HONGKONG CHIAP HUA MANUFACTORY
Original Assignee
HONGKONG CHIAP HUA MANUFACTORY
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 HONGKONG CHIAP HUA MANUFACTORY filed Critical HONGKONG CHIAP HUA MANUFACTORY
Priority to GB3378555A priority Critical patent/GB808076A/en
Publication of GB808076A publication Critical patent/GB808076A/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
    • G04C3/02—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 pendulum
    • G04C3/027—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 pendulum using electromagnetic coupling between electric power source and pendulum

Landscapes

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

Abstract

808,076. Electric clocks. HONGKONG CHIAP HUA MANUFACTORY CO. (1947) Ltd. Nov. 25, 1955, No. 33785/55. Class 139 In an electric clock the pendulum 18, Fig. 2, is supported at 19 and carries above the adjustable bob 22 a transversely adjustable permanent magnet 35. Pivoted to the pendulum 18 is a pawl 17 which as the pendulum swings to the right, steps-on a ratchet 16 geared to the clock hands (not shown). The pendulum is impulsed as it swings to the right by the inter-action between the permanent magnet 35 and a coil 26 connected to a battery 25 and energized thereby when the switch contacts 31, 29 are closed. The contacts 31, 29 are carried by spring blades 30, 28 respectively and are closed by the teeth of the ratchet wheel 16 acting on a projection 32 carried by the blade 30. A condenser 34 is connected to the blade 28 to prevent sparking between the contacts 31, 29 Adjacent the coil 26 is a damping coil 38. A dummy coil 39 is located at the other side of the pendulum.
GB3378555A 1955-11-25 1955-11-25 Improvements in electric clocks Expired GB808076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3378555A GB808076A (en) 1955-11-25 1955-11-25 Improvements in electric clocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3378555A GB808076A (en) 1955-11-25 1955-11-25 Improvements in electric clocks

Publications (1)

Publication Number Publication Date
GB808076A true GB808076A (en) 1959-01-28

Family

ID=10357398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3378555A Expired GB808076A (en) 1955-11-25 1955-11-25 Improvements in electric clocks

Country Status (1)

Country Link
GB (1) GB808076A (en)

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