GB550966A - Improvements in or relating to clock mechanisms - Google Patents

Improvements in or relating to clock mechanisms

Info

Publication number
GB550966A
GB550966A GB1305141A GB1305141A GB550966A GB 550966 A GB550966 A GB 550966A GB 1305141 A GB1305141 A GB 1305141A GB 1305141 A GB1305141 A GB 1305141A GB 550966 A GB550966 A GB 550966A
Authority
GB
United Kingdom
Prior art keywords
wheel
disc
wire
balance wheel
slot
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
GB1305141A
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 GB1305141A priority Critical patent/GB550966A/en
Publication of GB550966A publication Critical patent/GB550966A/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
    • G04C3/061—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 and mechanically driving the gear-train
    • 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

Landscapes

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

Abstract

550,966. Electric clocks. GRASEBY, R. C. Oct. 9, 1941, No. 13051. [Class 139] The balance wheel 1, Fig. 1, of a clock mechanism is electrically maintained by an armature 2 and the pole pieces 3 of an electromagnet the circuit of which is controlled by a contact 4 on the balance wheel and a spring contact 5. The balance wheel staff 9 has fixed thereto a sleeve 8 with end discs 10, 11. Pivoted to the disc 10 is a wire 13 of spring material the other end of which passes through a slot 12 in the disc 11. The slot may be arranged within the rim of the disc 11 or a ring 14 may lie in a groove in the disc to close the slot. The wire 13 serves as a driving connection between the balance wheel 1 and a ratchet toothed wheel 15, Figs. 1 and 3. In one direction of oscillation the wire 13 rides up the long face of a tooth and in the other direction engages the steep face to drive the wheel 15 step by step. The swing of the balance wheel and the size of the teeth on the wheel 15 may be arranged so that during the active movement two teeth are advanced each complete oscillation to and fro. A pivoted mask plate 20 may be provided, the plate being shaped and arranged so that the wire 13 drives at half the speed.
GB1305141A 1941-10-09 1941-10-09 Improvements in or relating to clock mechanisms Expired GB550966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1305141A GB550966A (en) 1941-10-09 1941-10-09 Improvements in or relating to clock mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1305141A GB550966A (en) 1941-10-09 1941-10-09 Improvements in or relating to clock mechanisms

Publications (1)

Publication Number Publication Date
GB550966A true GB550966A (en) 1943-02-02

Family

ID=10015890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1305141A Expired GB550966A (en) 1941-10-09 1941-10-09 Improvements in or relating to clock mechanisms

Country Status (1)

Country Link
GB (1) GB550966A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757555A (en) * 1953-08-04 1956-08-07 Elgin Nat Watch Co Pawl and ratchet mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757555A (en) * 1953-08-04 1956-08-07 Elgin Nat Watch Co Pawl and ratchet mechanism

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