GB1355064A – Electric timepieces
– Google Patents
GB1355064A – Electric timepieces
– Google Patents
Electric timepieces
Info
Publication number
GB1355064A
GB1355064A
GB3221271A
GB3221271A
GB1355064A
GB 1355064 A
GB1355064 A
GB 1355064A
GB 3221271 A
GB3221271 A
GB 3221271A
GB 3221271 A
GB3221271 A
GB 3221271A
GB 1355064 A
GB1355064 A
GB 1355064A
Authority
GB
United Kingdom
Prior art keywords
dimension
plates
watch
oct
relative dimensions
Prior art date
1970-09-07
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
GB3221271A
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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.)
1970-09-07
Filing date
1971-07-08
Publication date
1974-06-05
1970-10-15
Priority claimed from JP10179070U
external-priority
patent/JPS502027Y1/ja
1970-12-01
Priority claimed from JP45106113A
external-priority
patent/JPS494650B1/ja
1971-07-08
Application filed by Suwa Seikosha KK
filed
Critical
Suwa Seikosha KK
1972-06-02
Priority to AU43039/72A
priority
Critical
patent/AU463197B2/en
1972-06-23
Priority to DD16394172A
priority
patent/DD97857A1/xx
1972-06-27
Priority to GB1329058D
priority
patent/GB1329058A/en
1972-07-06
Priority to BR447172A
priority
patent/BR7204471D0/en
1972-07-06
Priority to SU721806049A
priority
patent/SU577956A3/en
1972-07-06
Priority to CS480072A
priority
patent/CS175434B2/cs
1972-07-07
Priority to HUGI000170
priority
patent/HU166404B/hu
1972-07-07
Priority to DE19722233492
priority
patent/DE2233492C3/en
1972-07-08
Priority to JP6861472A
priority
patent/JPS4848875A/ja
1974-06-05
Publication of GB1355064A
publication
Critical
patent/GB1355064A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G04C3/08—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
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
G04C3/069—Driving circuits using a single coil for detection and driving purposes
Abstract
1355064 Electronic watches SUWA SEIKOSHA KK 25 Aug 1971 [20 Oct 1970 27 Oct 1970] 32212/72 Divided out of 1355062 Heading G3T The description of the electronically energized watch is substantially as Parent Specification 1355062 but the claims are directed primarily to the relative dimensions of the parts of the magnetic circuit of the tuning fork oscillator of the watch. As shown Fig. 8, each tine of the fork carries a parallel pair of plates 35c, 35d and 35a, 35b respectively, of magnetic material. Permanent magnets 36c, 36d, 36a, 36b are fitted in recesses in the respective plates. A single pick-up and drive coil 3 is disposed in the gaps in the generally U-shaped magnetic circuits which include the fork tines and the plates. Fig. 14 illustrates the relative dimensions of the components of each magnetic circuit. Thus the dimension «c» should always be greater than dimension «a»; about half the magnet thickness should project beyond the plate where it is thickest i.e. at dimension «c»; (a-b) should not exceed one third the thickness of the magnet also dimension «d» should be at least 1¢ times «e».
GB3221271A
1970-09-07
1971-07-08
Electric timepieces
Expired
GB1355064A
(en)
Priority Applications (9)
Application Number
Priority Date
Filing Date
Title
AU43039/72A
AU463197B2
(en)
1971-07-08
1972-06-02
Improvements in or relating to vehicle braking systems
DD16394172A
DD97857A1
(en)
1971-07-08
1972-06-23
GB1329058D
GB1329058A
(en)
1971-07-08
1972-06-27
Vehicle braking
CS480072A
CS175434B2
(en)
1971-07-08
1972-07-06
SU721806049A
SU577956A3
(en)
1971-07-08
1972-07-06
Braking system of transport vehicle
BR447172A
BR7204471D0
(en)
1971-07-08
1972-07-06
VEHICLE BRAKE SYSTEMS
HUGI000170
HU166404B
(en)
1971-07-08
1972-07-07
DE19722233492
DE2233492C3
(en)
1971-07-08
1972-07-07
Vehicle braking system
JP6861472A
JPS4848875A
(en)
1971-07-08
1972-07-08
Applications Claiming Priority (7)
Application Number
Priority Date
Filing Date
Title
JP7773270
1970-09-07
JP8497470
1970-09-30
JP10179070U
JPS502027Y1
(en)
1970-10-15
1970-10-15
JP9150870
1970-10-19
JP9181970
1970-10-20
JP10611370
1970-10-22
JP45106113A
JPS494650B1
(en)
1970-12-01
1970-12-01
Publications (1)
Publication Number
Publication Date
GB1355064A
true
GB1355064A
(en)
1974-06-05
Family
ID=27565265
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3221271A
Expired
GB1355064A
(en)
1970-09-07
1971-07-08
Electric timepieces
Country Status (1)
Country
Link
GB
(1)
GB1355064A
(en)
1971
1971-07-08
GB
GB3221271A
patent/GB1355064A/en
not_active
Expired
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Electric time-pieces
Legal Events
Date
Code
Title
Description
1974-10-09
PS
Patent sealed
1985-04-17
PCNP
Patent ceased through non-payment of renewal fee
