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
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.
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)
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. |
EP1411400B1 (en) * | 2002-10-16 | 2010-01-06 | ETA SA Manufacture Horlogère Suisse | Fixation device for a coaxial wheel in a timepiece, in particular of 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)
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 |
-
1970
- 1970-06-25 DE DE19702031341 patent/DE2031341A1/en active Pending
- 1970-06-25 US US49722A patent/US3659412A/en not_active Expired - Lifetime
- 1970-06-26 GB GB1252547D patent/GB1252547A/en not_active Expired
- 1970-06-26 FR FR707023864A patent/FR2049124B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2049124B1 (en) | 1973-08-10 |
DE2031341A1 (en) | 1971-01-07 |
FR2049124A1 (en) | 1971-03-26 |
US3659412A (en) | 1972-05-02 |
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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 |