GB1247806A - Improvements in or relating to clockwork calendars - Google Patents

Improvements in or relating to clockwork calendars

Info

Publication number
GB1247806A
GB1247806A GB52952/69A GB5295269A GB1247806A GB 1247806 A GB1247806 A GB 1247806A GB 52952/69 A GB52952/69 A GB 52952/69A GB 5295269 A GB5295269 A GB 5295269A GB 1247806 A GB1247806 A GB 1247806A
Authority
GB
United Kingdom
Prior art keywords
lever
adjustment
calendar
cam
clockwork
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
GB52952/69A
Inventor
Pieter Wilhelmus Maria Gaemers
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1247806A publication Critical patent/GB1247806A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Operated Clutches (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Transmission Devices (AREA)

Abstract

1,247,806. A clockwork calendar. P. W. M. GAEMERS. Oct.29, 1969 [Oct.31, 1968], No.52952/69. Heading G3T. A clockwork calendar comprises a clockwork driving means coupled to a transmission mechanism for periodically adjusting the calendar, the transmission mechanism including driving shaft 2 which rotates once every 24 hours, having two members 3, 4 fixedly mounted thereon, one of the members, 4, co-operating with a movable latch element 8 for temporarily locking and suddenly releasing an adjustment lever 11 mounted for rocking movement through a limited distance, the adjustment lever having an adjustment finger 15 for adjusting the calendar mechanism 16, the calendar mechanism being entirely uncoupled from said adjustment finger before and after the adjustment, the adjustment lever 11 being connected with an operating lever 6 by means of a biassing member 9 and forming a snap action mechanism therewith, the operating lever being mounted for rocking movement, the other member 3 on the driving shaft serving to rock the operating lever. As described, cam 3 rocks lever 6 about pivot 5 and cam 4 moves slide 8 axially (radially of the cam) between guide blocks 7. Lever 6 is connected by tension spring 9 to lip 10 on lever 11 mounted between rollers 12. Movement of lever 11 is limited by engagement of dog 13 between stops 14. Finger 15 on lever 11 in one direction of travel of the lever trips switch lever 16 of calendar mechanism (not shown or described) to advance the reading, but on the return stroke causes lever 16 to make an inoperative stroke. Fig. 1 shows the mechanism just before midnight. Cam 3 has moved lever 6 to its extreme leftward position. Spring 9 is under tension and pulling dog 13 of lever 11 against slide 8 Cam 4 is about to release slide 8. Immediately after midnight, Fig. 2, slide 8 has been released and has moved downward as spring 9 has pulled lever 11 anticlockwise, during which sudden movement finger 15 has struck lever 16 and released it again. A similar action at midday Figs. 3 and 4 (not shown) cocks the mechanism.
GB52952/69A 1968-10-31 1969-10-29 Improvements in or relating to clockwork calendars Expired GB1247806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6815559A NL6815559A (en) 1968-10-31 1968-10-31

Publications (1)

Publication Number Publication Date
GB1247806A true GB1247806A (en) 1971-09-29

Family

ID=19805051

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52952/69A Expired GB1247806A (en) 1968-10-31 1969-10-29 Improvements in or relating to clockwork calendars

Country Status (9)

Country Link
US (1) US3559394A (en)
JP (1) JPS4819275B1 (en)
AT (1) AT300669B (en)
BE (1) BE740780A (en)
CH (2) CH507545A (en)
FR (1) FR2022046B1 (en)
GB (1) GB1247806A (en)
LU (1) LU59741A1 (en)
NL (1) NL6815559A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3540524B1 (en) * 2018-03-13 2022-02-16 Montres Breguet S.A. Governed jumping display mechanism in a timepiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH460645A (en) * 1966-02-25 1968-09-30 Ebauches Sa Calendar timepiece

Also Published As

Publication number Publication date
NL6815559A (en) 1970-05-04
BE740780A (en) 1970-04-01
CH1630369A4 (en) 1971-01-29
JPS4819275B1 (en) 1973-06-12
AT300669B (en) 1972-08-10
FR2022046A1 (en) 1970-07-24
FR2022046B1 (en) 1974-02-22
CH507545A (en) 1971-01-29
DE1953524A1 (en) 1970-05-06
LU59741A1 (en) 1970-01-12
US3559394A (en) 1971-02-02
DE1953524B2 (en) 1972-09-28

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