FR542645A - Horloge à calendrier - Google Patents

Horloge à calendrier

Info

Publication number
FR542645A
FR542645A FR542645DA FR542645A FR 542645 A FR542645 A FR 542645A FR 542645D A FR542645D A FR 542645DA FR 542645 A FR542645 A FR 542645A
Authority
FR
France
Prior art keywords
calendar clock
calendar
clock
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
Other languages
English (en)
Inventor
Jaroslav Pacovsky
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 filed Critical
Application granted granted Critical
Publication of FR542645A publication Critical patent/FR542645A/fr
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
    • G04B19/2538—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 automatically corrected at the end of months having less than 31 days

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR542645D 1921-10-22 1921-10-22 Horloge à calendrier Expired FR542645A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR542645T 1921-10-22

Publications (1)

Publication Number Publication Date
FR542645A true FR542645A (fr) 1922-08-18

Family

ID=8931020

Family Applications (1)

Application Number Title Priority Date Filing Date
FR542645D Expired FR542645A (fr) 1921-10-22 1921-10-22 Horloge à calendrier

Country Status (1)

Country Link
FR (1) FR542645A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998034162A1 (fr) * 1997-01-30 1998-08-06 Girard-Perregaux S.A. Mouvement d'horlogerie a quantieme perpetuel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998034162A1 (fr) * 1997-01-30 1998-08-06 Girard-Perregaux S.A. Mouvement d'horlogerie a quantieme perpetuel
US6118734A (en) * 1997-01-30 2000-09-12 Girard-Perregaux, S.A. Train of clockwork with perpetual Julian date

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