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GB524723A - Improvements in or relating to a winding-up device for watches - Google Patents

Improvements in or relating to a winding-up device for watches

Info

Publication number
GB524723A
GB524723A GB3775/39A GB377539A GB524723A GB 524723 A GB524723 A GB 524723A GB 3775/39 A GB3775/39 A GB 3775/39A GB 377539 A GB377539 A GB 377539A GB 524723 A GB524723 A GB 524723A
Authority
GB
United Kingdom
Prior art keywords
sleeve
watches
winding
jaws
chuck
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
GB3775/39A
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 GB524723A publication Critical patent/GB524723A/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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

524,723. Keyless mechanism for watches. SIMON, J. Feb. 4, 1939, Nos. 3775 and 3776. Convention dates, Feb. 7, 1938 and Dec. 12, 1938. [Class 139] In keyless mechanism, tapered chuck jaws 14 are forced inwards to grip the end 15 of the winding stem 9 by an internally tapered sleeve 12 which is inside the pendant 7, the jaws 14 and sleeve 12 being moved relatively to one another to give the desired clamping by means of the crown 10 which presses against the end of sleeve 12 and is connected by screw 13 to the member 11 carrying the chuck jaws. Packing rings 17 and 19 are disposed as shown. In a modification, Figs. 4-6 (not shown), the crown 10 and sleeve 12 have coacting flats; and the chuck 14 and stem 9 also have coacting flats. By these means, unitary rotation of the movable winding member is assured.
GB3775/39A 1938-02-07 1939-02-04 Improvements in or relating to a winding-up device for watches Expired GB524723A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH524723X 1938-02-07

Publications (1)

Publication Number Publication Date
GB524723A true GB524723A (en) 1940-08-13

Family

ID=4518141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3775/39A Expired GB524723A (en) 1938-02-07 1939-02-04 Improvements in or relating to a winding-up device for watches

Country Status (1)

Country Link
GB (1) GB524723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579340A (en) * 1944-11-28 1951-12-18 Schmitz Werner Winding stem with removable crown

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579340A (en) * 1944-11-28 1951-12-18 Schmitz Werner Winding stem with removable crown

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