GB1104072A - Improvements in or relating to horological instruments - Google Patents

Improvements in or relating to horological instruments

Info

Publication number
GB1104072A
GB1104072A GB2441664A GB2441664A GB1104072A GB 1104072 A GB1104072 A GB 1104072A GB 2441664 A GB2441664 A GB 2441664A GB 2441664 A GB2441664 A GB 2441664A GB 1104072 A GB1104072 A GB 1104072A
Authority
GB
United Kingdom
Prior art keywords
coil
balance
plates
june
attached
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
GB2441664A
Inventor
Ronald Frederick Glenister
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB2441664A priority Critical patent/GB1104072A/en
Publication of GB1104072A publication Critical patent/GB1104072A/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
    • G04C3/065—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 gear-train by means of static switches, e.g. transistor circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

1,104,072. Clocks and watches. SMITHS INDUSTRIES Ltd. June 11, 1965 [June 12, 1964), No. 24416/64. Heading G3T. A timepiece is of the kind wherein a balance, carrying a coil which co-operates with a stationary magnet, is impulsed through a transistor circuit. The balance comprises a flat balance member 5 as shown and a flat coil 8a, 8b, Figs. 1, 3 and 4 (not shown), both disposed in the same plane. The coil is secured between two plates 6, 7 which are attached to opposite sides of the balance member. This member and the two plates 6, 7 form separately conducting parts to which hair springs 18, 19, 26 are attached and whereby the ends of the coil and a tapping thereof are connected with the stationary transistor 40. The member 5 is divided to avoid eddy currents and carries poising weights 32 to 35. The plates are bonded to member 5 and to the coil by insulating material.
GB2441664A 1964-06-12 1964-06-12 Improvements in or relating to horological instruments Expired GB1104072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2441664A GB1104072A (en) 1964-06-12 1964-06-12 Improvements in or relating to horological instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2441664A GB1104072A (en) 1964-06-12 1964-06-12 Improvements in or relating to horological instruments

Publications (1)

Publication Number Publication Date
GB1104072A true GB1104072A (en) 1968-02-21

Family

ID=10211394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2441664A Expired GB1104072A (en) 1964-06-12 1964-06-12 Improvements in or relating to horological instruments

Country Status (1)

Country Link
GB (1) GB1104072A (en)

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