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FR488545A - Perfectionnements aux horloges - Google Patents

Perfectionnements aux horloges

Info

Publication number
FR488545A
FR488545A FR488545A FR488545DA FR488545A FR 488545 A FR488545 A FR 488545A FR 488545 A FR488545 A FR 488545A FR 488545D A FR488545D A FR 488545DA FR 488545 A FR488545 A FR 488545A
Authority
FR
France
Prior art keywords
clocks
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
FR488545A
Other languages
English (en)
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.)
DIFFERENTIAL CLOCK CO
Original Assignee
DIFFERENTIAL CLOCK CO
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 DIFFERENTIAL CLOCK CO filed Critical DIFFERENTIAL CLOCK CO
Application granted granted Critical
Publication of FR488545A publication Critical patent/FR488545A/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
    • 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)
  • Unwinding Webs (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
FR488545A 1918-01-18 1918-01-23 Perfectionnements aux horloges Expired FR488545A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1080/18A GB119785A (en) 1918-01-18 1918-01-18 Improvements in or relating to Clocks.
FR488545T 1918-01-23
CH81334T 1918-01-25

Publications (1)

Publication Number Publication Date
FR488545A true FR488545A (fr) 1918-10-18

Family

ID=43530303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR488545A Expired FR488545A (fr) 1918-01-18 1918-01-23 Perfectionnements aux horloges

Country Status (3)

Country Link
CH (1) CH81334A (fr)
FR (1) FR488545A (fr)
GB (1) GB119785A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279553B (de) * 1962-01-04 1968-10-03 Amphenol Corp Geraeuscharme Ankerhemmung fuer Uhrwerke

Also Published As

Publication number Publication date
GB119785A (en) 1918-10-17
CH81334A (fr) 1919-06-02

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