CH21315A - Advanced motor device for watches and clocks and marine chronometers - Google Patents

Advanced motor device for watches and clocks and marine chronometers

Info

Publication number
CH21315A
CH21315A CH21315A CH21315DA CH21315A CH 21315 A CH21315 A CH 21315A CH 21315 A CH21315 A CH 21315A CH 21315D A CH21315D A CH 21315DA CH 21315 A CH21315 A CH 21315A
Authority
CH
Switzerland
Prior art keywords
watches
clocks
motor device
advanced motor
chronometers
Prior art date
Application number
CH21315A
Other languages
French (fr)
Inventor
A Bornand
Original Assignee
A Bornand
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 A Bornand filed Critical A Bornand
Publication of CH21315A publication Critical patent/CH21315A/en

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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/22—Compensation of changes in the motive power of the mainspring
    • G04B1/225—Compensation of changes in the motive power of the mainspring with the aid of an interposed power-accumulator (secondary spring) which is always tensioned

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH21315A 1900-02-28 1900-02-28 Advanced motor device for watches and clocks and marine chronometers CH21315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH21315T 1900-02-28

Publications (1)

Publication Number Publication Date
CH21315A true CH21315A (en) 1901-06-30

Family

ID=4226593

Family Applications (1)

Application Number Title Priority Date Filing Date
CH21315A CH21315A (en) 1900-02-28 1900-02-28 Advanced motor device for watches and clocks and marine chronometers

Country Status (1)

Country Link
CH (1) CH21315A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1528443A1 (en) * 2003-10-28 2005-05-04 Francois-Paul Journe Constant force mechanism for a watch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1528443A1 (en) * 2003-10-28 2005-05-04 Francois-Paul Journe Constant force mechanism for a watch
US6948845B2 (en) 2003-10-28 2005-09-27 Journe Francois-Paul Mechanical timepiece

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