GB1252547A - - Google Patents

Info

Publication number
GB1252547A
GB1252547A GB1252547DA GB1252547A GB 1252547 A GB1252547 A GB 1252547A GB 1252547D A GB1252547D A GB 1252547DA GB 1252547 A GB1252547 A GB 1252547A
Authority
GB
United Kingdom
Prior art keywords
wheel
spring
june
groove
cannon
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
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 JP6001269U external-priority patent/JPS487093Y1/ja
Application filed filed Critical
Publication of GB1252547A publication Critical patent/GB1252547A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B35/00—Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Toys (AREA)

Abstract

1,252,547. Date indicating. CITIZEN WATCH CO. Ltd. June 26, 1970 [June 26, 1969; Feb.6, 1970], No.31249/70. Heading G3T. A calendar timepiece has a minute wheel 13 driving, through a pinion 21 a cannon wheel 14 formed with a groove 14a. The axial movement of the cannon wheel 14 is limited by a reduced extension 15a of mounting plate 15 which is attached by set screws (not shown) to a plate 20. A day star-wheel 16 is formed with a concentric and stepped recess 16a having a ring shoulder 16b on which the outer peripheral edge of a positioner spring 18 abuts under pressure. The inner edge of the spring rests in the groove 14a. The spring is made from a flat sheet.
GB1252547D 1969-06-26 1970-06-26 Expired GB1252547A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6001269U JPS487093Y1 (en) 1969-06-26 1969-06-26
JP1228870 1970-02-06

Publications (1)

Publication Number Publication Date
GB1252547A true GB1252547A (en) 1971-11-03

Family

ID=26347867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252547D Expired GB1252547A (en) 1969-06-26 1970-06-26

Country Status (4)

Country Link
US (1) US3659412A (en)
DE (1) DE2031341A1 (en)
FR (1) FR2049124B1 (en)
GB (1) GB1252547A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143364A (en) * 1977-05-20 1978-12-13 Seiko Instr & Electronics Ltd Portable watch with calendar
SU1226392A1 (en) * 1978-08-11 1986-04-23 Научно-исследовательский институт часовой промышленности Reduction gear box for electronic-mechanical clock with step motor
CH705048B1 (en) * 2002-07-09 2012-12-14 Lvmh Swiss Mft Sa A drive by smooth or notched belts a mechanical watch movement.
DE60235015D1 (en) * 2002-10-16 2010-02-25 Eta Sa Mft Horlogere Suisse Fixing device for a Koaxialdrehteil in a clock, in particular a date display disc
US9678477B2 (en) * 2014-09-12 2017-06-13 Seiko Instruments Inc. Mechanical component, mechanical component manufacturing method, movement, and timepiece
CN114545756A (en) * 2022-02-23 2022-05-27 东阳市华佳电子有限公司 Double-calendar movement snap ring positioning structure

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH46864A (en) * 1909-05-03 1910-04-16 Graizely & Cie Grease friction adjustment device of a transmission return on the shaft of a mobile clock movement
CH248869A (en) * 1946-12-30 1947-05-31 Hanhart Willy Shock-absorbing bearing for clockworks.
US2582879A (en) * 1948-02-18 1952-01-15 Felsa S A Calendar timepiece
DE807913C (en) * 1948-11-29 1951-07-09 Emil Unterwagner Dipl Ing Unbreakable journal bearing
CH285375A (en) * 1949-02-05 1952-08-31 Erismann Gerard Bumper device.
CH292137A (en) * 1949-09-23 1953-07-31 Colomb Henri Shock-absorbing bearing, in particular for a timepiece movement, process for manufacturing this bearing and tool for implementing this process.
US2591819A (en) * 1950-02-16 1952-04-08 Rolex Montres Calendar timepiece
CH300365A (en) * 1952-06-30 1954-07-31 Vuilleumier Marcel Fixed bearing for timepiece.
FR1090603A (en) * 1953-09-28 1955-04-01 Shock-resistant bearing, in particular for mobile watch movements
CH318237A (en) * 1954-06-22 1956-12-31 Marti Fritz Bearing for watch movement mobile

Also Published As

Publication number Publication date
US3659412A (en) 1972-05-02
FR2049124A1 (en) 1971-03-26
DE2031341A1 (en) 1971-01-07
FR2049124B1 (en) 1973-08-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees