GB1046161A - Improvements in electrically powered watches - Google Patents

Improvements in electrically powered watches

Info

Publication number
GB1046161A
GB1046161A GB102464A GB102464A GB1046161A GB 1046161 A GB1046161 A GB 1046161A GB 102464 A GB102464 A GB 102464A GB 102464 A GB102464 A GB 102464A GB 1046161 A GB1046161 A GB 1046161A
Authority
GB
United Kingdom
Prior art keywords
frequency
diode
voltage
backward
oscillator
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
GB102464A
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.)
Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule
Original Assignee
Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule
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 Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule filed Critical Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule
Publication of GB1046161A publication Critical patent/GB1046161A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/04—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electric Clocks (AREA)

Abstract

1,046,161. Watches. GESELLSCHAFT ZUR FORDERUNG DER FORSCHUNG AN DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE. Jan. 9, 1964 [Jan.22, 1963], No.1024/64. Heading G3T. [Also in Division H3] A pocket or wrist watch comprises an electric oscillator 10, block diagram Fig. 1 (not shown), stabilized by a standard frequency resonance element 11 and connected through an electronic frequency reducer 13 to an electromechanical transducer 14 which drives a mechanical time-indicator 15. The frequency reducer is provided with a backward diode as an active member. As shown, the frequency reducer includes a relaxation oscillator comprising the backward diode D 1 with an inductance L, an ohmic loss resistor R, and a D.C. source B of terminal voltage E B . The backward diode has the characteristic K D , Fig. 4 (not shown), and differs from a tunnel diode in that its peak current is only about 1 to 5 microamperes compared with a few milliamperes in the tunnel diode, and an A.C. voltage produced across it with a frequency f is passed to output terminals 18, 19 via a separating capacitor C 2 . The controlling voltage U<SP>1</SP> is fed with positive polarity to the backward diode D through an input circuit comprising a capacitor C 1 and two diodes D 1 and D 2 . The voltage E B and the loss resistor R are selected so that the rectilinear characteristic K R of the loss resistor intersects the diode characteristic K D at a point P inside the negative resistance region. It is shown that the output voltage (Fig. 5 not shown) will follow the cycle indicated by the arrowed loop in Fig. 4. The frequency ratio f o /f may be up to about 15, e.g. f 0 = 4500 c/s and f = 300 c/s. Two similar reducers in series may be used so that with a standard frequency f 0 of 11, 250 c/s, a feed frequency of 50 c/s to the transducer 14 is obtained. The resonance element may be a torsional or flexural element, or a piezoelectric or magnetostrictive element, and may be in a vacuum-tight enclosure. Oscillator 10 may also be a relaxation oscillator, fitted with backward diodes, and is fed from a battery 10. The device enables a resonance element of high frequency to be used with the object of improving the accuracy of timekeeping and avoiding disturbance from gravity or vibration.
GB102464A 1963-01-22 1964-01-09 Improvements in electrically powered watches Expired GB1046161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH181663A CH381962A (en) 1963-01-22 1963-01-22 Hook for presenting bananas

Publications (1)

Publication Number Publication Date
GB1046161A true GB1046161A (en) 1966-10-19

Family

ID=4219263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB102464A Expired GB1046161A (en) 1963-01-22 1964-01-09 Improvements in electrically powered watches

Country Status (2)

Country Link
CH (1) CH381962A (en)
GB (1) GB1046161A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298688B (en) * 1965-01-22 1969-07-03 Bruenger Friedrich Wilhelm Device for hanging goods in sales packages
NO140284C (en) * 1976-07-06 1979-08-08 Toni Casutt BANANA HOLDER.
US4073458A (en) * 1976-10-05 1978-02-14 Sease True F Hanger clip for displaying articles from suspended ceilings
FR2579351B1 (en) * 1985-03-25 1988-08-05 Bcrc Sarl LABEL WITH HANGING DEVICE
GB2230247B (en) * 1989-04-13 1992-11-11 Andre Philip Wilkins Apparatus for producing suspension packs for articles

Also Published As

Publication number Publication date
CH381962A (en) 1964-09-15

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