CH38824A - Device for reducing friction and torsion of the chronograph wheel - Google Patents

Device for reducing friction and torsion of the chronograph wheel

Info

Publication number
CH38824A
CH38824A CH38824A CH38824DA CH38824A CH 38824 A CH38824 A CH 38824A CH 38824 A CH38824 A CH 38824A CH 38824D A CH38824D A CH 38824DA CH 38824 A CH38824 A CH 38824A
Authority
CH
Switzerland
Prior art keywords
torsion
reducing friction
chronograph wheel
chronograph
wheel
Prior art date
Application number
CH38824A
Other languages
French (fr)
Inventor
Friedrich Sjoegren Oscar
Original Assignee
Friedrich Sjoegren Oscar
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 Friedrich Sjoegren Oscar filed Critical Friedrich Sjoegren Oscar
Publication of CH38824A publication Critical patent/CH38824A/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH38824A 1906-10-23 1906-10-23 Device for reducing friction and torsion of the chronograph wheel CH38824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH38824T 1906-10-23

Publications (1)

Publication Number Publication Date
CH38824A true CH38824A (en) 1907-12-15

Family

ID=4265511

Family Applications (1)

Application Number Title Priority Date Filing Date
CH38824A CH38824A (en) 1906-10-23 1906-10-23 Device for reducing friction and torsion of the chronograph wheel

Country Status (1)

Country Link
CH (1) CH38824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679969GA3 (en) * 1990-12-11 1992-05-29

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679969GA3 (en) * 1990-12-11 1992-05-29
US5122995A (en) * 1990-12-11 1992-06-16 Eta Sa Fabriques D'ebauches Chronographic fly-back timepiece having a stop-start control for the fly-back hand
EP0490285A1 (en) * 1990-12-11 1992-06-17 Eta SA Fabriques d'Ebauches Timepiece of fly-back hand chronograph type provided with a device for stopping and starting the fly-back hand

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