GB609437A - Improvements in or relating to chronographs - Google Patents

Improvements in or relating to chronographs

Info

Publication number
GB609437A
GB609437A GB7965/46A GB796546A GB609437A GB 609437 A GB609437 A GB 609437A GB 7965/46 A GB7965/46 A GB 7965/46A GB 796546 A GB796546 A GB 796546A GB 609437 A GB609437 A GB 609437A
Authority
GB
United Kingdom
Prior art keywords
lever
bolt
fly
returning
winding arbor
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
GB7965/46A
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 GB609437A publication Critical patent/GB609437A/en
Expired legal-status Critical Current

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)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

609,437. Watches. BUCHLER, W. A. March 14, 1946, No. 7965. Convention date, March 19, 1945. [Class 139] In a chrononograph with a winding arbor arranged to start, stop and cause the flyback hands to fly back to their initial position the fly-back motion is effected by rotating the winding arbor. A winding pinion 1 is engaged by a click 2 with a pin 3 co-operating with the arm 4 of a lever 5. The other arm of the lever is in contact with a bolt 8 fixed to a brake 9. In the position shown in Fig. 1 the bolt 8 also holds a returning lever 12 in its cocked position. If the winding arbor is rotated the lever 5 is rocked displacing the bolt 8 so that the brake 9 and the returning lever 12 are both released. The returning lever 12 is then acted upon by a spring 13 and acts upon cams 18, 19 to bring the fly-back hands (not shown) to their initial position. To cock the returning lever 12 the castle ratchet 17 is rotated half a pitch thus allowing the bolt 8 to be snapped back into position by the action of a spring 20.
GB7965/46A 1945-03-19 1946-03-14 Improvements in or relating to chronographs Expired GB609437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH609437X 1945-03-19

Publications (1)

Publication Number Publication Date
GB609437A true GB609437A (en) 1948-09-30

Family

ID=4523295

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7965/46A Expired GB609437A (en) 1945-03-19 1946-03-14 Improvements in or relating to chronographs

Country Status (1)

Country Link
GB (1) GB609437A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783567A2 (en) * 2005-11-07 2007-05-09 Maurice Lacroix SA Chronograph movement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783567A2 (en) * 2005-11-07 2007-05-09 Maurice Lacroix SA Chronograph movement
EP1783567A3 (en) * 2005-11-07 2008-07-02 Maurice Lacroix SA Chronograph movement

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