GB1412600A - Synchronizing arrangement for a timekeeping instrument - Google Patents

Synchronizing arrangement for a timekeeping instrument

Info

Publication number
GB1412600A
GB1412600A GB5945672A GB5945672A GB1412600A GB 1412600 A GB1412600 A GB 1412600A GB 5945672 A GB5945672 A GB 5945672A GB 5945672 A GB5945672 A GB 5945672A GB 1412600 A GB1412600 A GB 1412600A
Authority
GB
United Kingdom
Prior art keywords
coil
balance
magnets
pulses
amplitude
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
GB5945672A
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.)
Timex Group USA Inc
Original Assignee
Timex Corp
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
Priority claimed from DE19722201557 external-priority patent/DE2201557C2/en
Application filed by Timex Corp filed Critical Timex Corp
Publication of GB1412600A publication Critical patent/GB1412600A/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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
    • G04C11/081—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet
    • G04C11/084—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet acting on the balance
    • 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
    • G04C3/066—Constructional details, e.g. disposition of coils

Abstract

1412600 Electronic watches TIMEX CORP 22 Dec 1972 [13 Jan 1972] 59456/72 Heading G3T A mechanical oscillator, e.g. a balance 10, is maintained by a system of pairs of permanent magnets 44-50 and a coil 26 which receives pulses derived from a quartz oscillator (100), Fig.2a (not shown) via a frequency divider (102), synchronization of the balance with the pulses being aided by at least one ferromagnetic element 56 mounted in fixed relation to the coil to co-operate with the magnets. As shown the coil and the element 56 are carried by the balance and the magnets are attached to fixed plates 52, 54; this arrangement may however be reversed. The normal amplitude of oscillation is 160-200 degrees in total. If this amplitude is changed, e.g. by a jolt, the element 56 acts with the magnets to restore synchronous amplitude and frequency. The magnitude of the driving pulses to the coil is also adjusted by comparison of the phase of the control pulses from the oscillator (100) with that of monitoring pulses derived from the oscillations of the coil. The balance drives a gear train via an impulse pin 28 and pin pallet lever 34. In an alternative embodiment, a pair of ferromagnetic elements (92, 94), Figs.3 and 4 (not shown) are secured symmetrically with respect to a circular coil (90) on the balance.
GB5945672A 1972-01-13 1972-12-22 Synchronizing arrangement for a timekeeping instrument Expired GB1412600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722201557 DE2201557C2 (en) 1972-01-13 Synchronizing device for a time-keeping instrument

Publications (1)

Publication Number Publication Date
GB1412600A true GB1412600A (en) 1975-11-05

Family

ID=5832933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5945672A Expired GB1412600A (en) 1972-01-13 1972-12-22 Synchronizing arrangement for a timekeeping instrument

Country Status (11)

Country Link
JP (1) JPS4880073A (en)
AU (1) AU470660B2 (en)
BE (1) BE794012A (en)
CA (1) CA965965A (en)
CH (2) CH29873A4 (en)
FR (1) FR2167917B1 (en)
GB (1) GB1412600A (en)
HK (1) HK31476A (en)
IT (1) IT976806B (en)
NL (1) NL7300297A (en)
SE (1) SE392351B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001013182A1 (en) * 1999-08-12 2001-02-22 Seiko Instruments Inc. Mechanical timepiece with posture detector

Also Published As

Publication number Publication date
DE2201557B2 (en) 1972-12-28
CH567756B5 (en) 1975-10-15
CA965965A (en) 1975-04-15
IT976806B (en) 1974-09-10
CH29873A4 (en) 1975-04-30
BE794012A (en) 1973-05-02
AU5095873A (en) 1974-07-11
AU470660B2 (en) 1976-03-25
NL7300297A (en) 1973-07-17
JPS4880073A (en) 1973-10-26
SE392351B (en) 1977-03-21
HK31476A (en) 1976-06-11
FR2167917A1 (en) 1973-08-24
DE2201557A1 (en) 1972-12-28
FR2167917B1 (en) 1975-08-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee