GB800467A - Improvements in or relating to calendar clockwork - Google Patents

Improvements in or relating to calendar clockwork

Info

Publication number
GB800467A
GB800467A GB24893/56A GB2489356A GB800467A GB 800467 A GB800467 A GB 800467A GB 24893/56 A GB24893/56 A GB 24893/56A GB 2489356 A GB2489356 A GB 2489356A GB 800467 A GB800467 A GB 800467A
Authority
GB
United Kingdom
Prior art keywords
cam
movement
disc
jumper
ramp
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
GB24893/56A
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.)
Rolex SA
Original Assignee
Montres Rolex SA
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 Montres Rolex SA filed Critical Montres Rolex SA
Publication of GB800467A publication Critical patent/GB800467A/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
    • 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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement

Landscapes

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

Abstract

800,467. Intermittent toothed gearing. MONTRES ROLEX S.A. Aug. 14, 1956 [Aug. 19, 1955], No. 24893/56. Class 80 (1). [Also in Group XIX] An internally toothed crown-shaped disc 8 bearing date numerals 9 is advanced suddenly at the end of every twenty-four hours by a finger 4a rigid with a rotatable sleeve 4 to which is secured a spiral cam 10. A driving wheel 3 loose on the sleeve 4 rotates at a speed of one revolution in twenty-four hours and drives the cam 10 through pin and slot 11, 12 lifting a jumper 13 until it reaches the end of the cam spiral and acts on a ramp 18 of the cam to give it a sudden movement. With this movement of the cam 10 the finger 4a engages between teeth 7 of the disc 8 which is thus advanced suddenly. As shown, the pin 11 is carried by the cam 10 and engages in a slot in the wheel 3. The jumper 13 is urged against the cam 10 by a spring 15 and a detent 19 prevents untimely movement of the disc 8. The ramp 18 is are-shaped to avoid damage on reverse movement during setting.
GB24893/56A 1955-08-19 1956-08-14 Improvements in or relating to calendar clockwork Expired GB800467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH800467X 1955-08-19

Publications (1)

Publication Number Publication Date
GB800467A true GB800467A (en) 1958-08-27

Family

ID=4537604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24893/56A Expired GB800467A (en) 1955-08-19 1956-08-14 Improvements in or relating to calendar clockwork

Country Status (1)

Country Link
GB (1) GB800467A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601976A (en) * 1968-09-16 1971-08-31 Gruen Ind Inc Calendar watch
CN106802545A (en) * 2015-11-26 2017-06-06 劳力士有限公司 Timepiece calendar date system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601976A (en) * 1968-09-16 1971-08-31 Gruen Ind Inc Calendar watch
CN106802545A (en) * 2015-11-26 2017-06-06 劳力士有限公司 Timepiece calendar date system
CN106802545B (en) * 2015-11-26 2020-12-01 劳力士有限公司 Clock calendar system

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