GB1257455A - - Google Patents

Info

Publication number
GB1257455A
GB1257455A GB1257455DA GB1257455A GB 1257455 A GB1257455 A GB 1257455A GB 1257455D A GB1257455D A GB 1257455DA GB 1257455 A GB1257455 A GB 1257455A
Authority
GB
United Kingdom
Prior art keywords
wheel
spring
crown
april
cam
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
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
Publication of GB1257455A publication Critical patent/GB1257455A/en
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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/18—Supports, suspensions or guide arrangements, for oscillating weights
    • G04B5/19—Suspension of the oscillating weight at its centre of rotation
    • 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

1,257,455. Watches. DAINI SEIKOSHA K. K. April 10, 1970 [April 10, 1969], No.17198/70. Heading G3T. In a chronograph having a self-winding mechanism 2 with an oscillating weight 1, a clutch ring 6 provides a frictional drive from a fourth wheel 10 of watch movement 4 to a spring 7. The fourth wheel 10 rotates freely on a seconds arbor 11 to which the spring 7 is fixed. To stop the seconds hand, a crown or button is operated to cause a member 5 to raise the ring 6 from the surface of the wheel 10 against the spring 7. To return the seconds hand to its zero position, further operation of the same, or an additional, crown or button causes a cam-driver 9 to move a heartshaped cam 8, without rotation of the wheel 10.
GB1257455D 1969-04-10 1970-04-10 Expired GB1257455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3204369 1969-04-10

Publications (1)

Publication Number Publication Date
GB1257455A true GB1257455A (en) 1971-12-22

Family

ID=12347823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257455D Expired GB1257455A (en) 1969-04-10 1970-04-10

Country Status (3)

Country Link
CH (2) CH535270A4 (en)
GB (1) GB1257455A (en)
SE (1) SE382267B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0772104A1 (en) * 1995-10-31 1997-05-07 Montres Rolex Sa Timepiece with a chronograph mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0772104A1 (en) * 1995-10-31 1997-05-07 Montres Rolex Sa Timepiece with a chronograph mechanism
US5793708A (en) * 1995-10-31 1998-08-11 Montres Rolex S.A. Timepiece with a chronograph mechanism
CH690524A5 (en) * 1995-10-31 2000-09-29 Rolex Montres Piece chronograph mechanism watchmaking.

Also Published As

Publication number Publication date
CH552232A (en) 1974-07-31
CH535270A4 (en) 1974-02-28
SE382267B (en) 1976-01-19

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years