GB825233A - Improvements in or relating to electric time-pieces - Google Patents

Improvements in or relating to electric time-pieces

Info

Publication number
GB825233A
GB825233A GB35040/56A GB3504056A GB825233A GB 825233 A GB825233 A GB 825233A GB 35040/56 A GB35040/56 A GB 35040/56A GB 3504056 A GB3504056 A GB 3504056A GB 825233 A GB825233 A GB 825233A
Authority
GB
United Kingdom
Prior art keywords
ratchet
pawl
axis
precious
line joining
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
GB35040/56A
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.)
Bulova Watch Co Inc
Original Assignee
Bulova Watch Co Inc
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 Bulova Watch Co Inc filed Critical Bulova Watch Co Inc
Publication of GB825233A publication Critical patent/GB825233A/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
    • G04C3/08—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
    • G04C3/101—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 constructional details
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Adornments (AREA)

Abstract

825,233. Ratchet gearing. BULOVA WATCH CO. Inc. Nov. 16, 1956 [July 30, 1956], No. 35040/56. Class 80 (3). [Also in Groups XVIII and XXXV] In an electric timepiece of the type having a tuning fork vibrator 1, Fig. 1, with a transistor maintaining circuit the driving pawl 4 engages the ratchet 5 at b and is fixed at a to the tine 3b which oscillates about the axis 3b<SP>1</SP>. The line joining the points a and b is normal to the line joining the point b and the axis 3b<SP>1</SP>. The angle g is approximately 30 degrees. The pawl 20 is in the form of a leaf-spring attached to a mounting pin 22, Fig. 2, and having an engaging element 21 of suitable material, e.g. a precious or semi-precious jewel. The ratchet 5 may be braked by a detent pawl, or by a finger which frictionally engages the ratchet arbor. Reference has been directed by the Comptroller to Specification 761,609.
GB35040/56A 1956-07-30 1956-11-16 Improvements in or relating to electric time-pieces Expired GB825233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US600922A US3057147A (en) 1956-07-30 1956-07-30 Motion converter

Publications (1)

Publication Number Publication Date
GB825233A true GB825233A (en) 1959-12-09

Family

ID=24405608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35040/56A Expired GB825233A (en) 1956-07-30 1956-11-16 Improvements in or relating to electric time-pieces

Country Status (6)

Country Link
US (1) US3057147A (en)
CA (1) CA601505A (en)
DE (1) DE1034551B (en)
FR (1) FR1172061A (en)
GB (1) GB825233A (en)
IT (1) IT563090A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129554A (en) * 1961-03-06 1964-04-21 Suwa Seikosha Kk Electric timekeeper
US3169339A (en) * 1963-07-05 1965-02-16 Jerome D Ekstrand Deep water casting bobber
US3192417A (en) * 1963-07-16 1965-06-29 Hoover Co Synchronous electric motor
CH699164A4 (en) * 1964-05-28 1966-08-15
US3670656A (en) * 1965-01-26 1972-06-20 Us Navy Fuze arming device
US3351788A (en) * 1966-02-01 1967-11-07 Movado Montres Apparatus for mechanically converting the oscillating movement of an electro-mechanical oscillator
DE1287519B (en) * 1966-04-22 1969-01-16 Kienzle Uhrenfabriken Gmbh Device for converting the vibrations of a tuning fork into a progressive rotary motion
DE1298938B (en) * 1966-04-22 1969-07-03 Kienzle Uhrenfabriken Gmbh Device for driving the movement of a clock by a high-speed oscillator and method for assembling this device
CH631369A5 (en) * 1978-09-14 1982-08-13 Bbc Brown Boveri & Cie TOOTHING.
DE3544930A1 (en) * 1985-12-19 1987-06-25 Messerschmitt Boelkow Blohm ELECTROMAGNETIC PRECISION ROTARY DRIVE

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB156697A (en) * 1920-01-08 1922-04-07 Charles Jean Victor Fery Improvements in electro-magnetic clocks
US1780194A (en) * 1929-05-03 1930-11-04 Phonodisc Corp Sound-reproducing machine
US1839215A (en) * 1931-03-18 1932-01-05 Arthur K Kempton Electric clock
US1914215A (en) * 1931-05-06 1933-06-13 Gen Electric Dieect current timing device
FR767359A (en) * 1933-04-10 1934-07-17 Synchronous time device
DE681623C (en) * 1934-10-06 1939-09-27 Landis & Gyr Ag Resonance spring drive with a drive gear directly influenced by the resonance spring
US2545617A (en) * 1946-06-19 1951-03-20 Gen Time Corp Timer mechanism
DE840974C (en) * 1950-05-14 1952-06-09 Manfred Szyszka Balance clock with direct current drive
CH296731A (en) * 1952-04-07 1954-02-28 Rolex Montres Electric watch.
IT547049A (en) * 1953-06-19
CH318231A (en) * 1954-02-10 1957-02-15 Bulova Watch Co Inc Snap-in to transform the vibrations of a mechanical vibrator into a rotary movement to control a clockwork mechanism
US2829740A (en) * 1955-09-08 1958-04-08 Hanes Hosiery Mills Company Brake means

Also Published As

Publication number Publication date
CA601505A (en) 1960-07-12
DE1034551B (en) 1958-07-17
FR1172061A (en) 1959-02-05
IT563090A (en)
US3057147A (en) 1962-10-09

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