GB353751A - Improvements in winding crowns for watches without a pendant - Google Patents

Improvements in winding crowns for watches without a pendant

Info

Publication number
GB353751A
GB353751A GB26451/30A GB2645130A GB353751A GB 353751 A GB353751 A GB 353751A GB 26451/30 A GB26451/30 A GB 26451/30A GB 2645130 A GB2645130 A GB 2645130A GB 353751 A GB353751 A GB 353751A
Authority
GB
United Kingdom
Prior art keywords
crown
sleeve
watches
pendant
winding
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
GB26451/30A
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
Priority to GB26451/30A priority Critical patent/GB353751A/en
Priority to US483652A priority patent/US1910078A/en
Publication of GB353751A publication Critical patent/GB353751A/en
Priority to FR721124D priority patent/FR721124A/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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/041—Construction of crowns for rotating movement; connection with the winding stem; winding stems
    • 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)
  • Electric Clocks (AREA)

Abstract

353,751. Watches. WILSDORF, H., 18, Rue du MarchÚ, Geneva, Switzerland. Sept. 4, 1930, No. 26451. [Class 139.] Keyless mechanism.-In a watch without a pendant a free sleeve 5, housed in a recess 8 of the winding crown 3, is pressed down on to the case 2 by a spring 6 ; flanges 12, 13 on sleeve 5 and crown 3 prevent the sleeve fully leaving the recess 8. The winding stem 1 is screwed into the tube 7 of the crown. In two modifications this tube 7 is omitted and the stem 1 is screwed into, or bolted to, the crown proper. The outer surface of sleeve 5 may be non-cylindrical.
GB26451/30A 1930-09-04 1930-09-04 Improvements in winding crowns for watches without a pendant Expired GB353751A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB26451/30A GB353751A (en) 1930-09-04 1930-09-04 Improvements in winding crowns for watches without a pendant
US483652A US1910078A (en) 1930-09-04 1930-09-22 Winding crown for watches without a pendant
FR721124D FR721124A (en) 1930-09-04 1931-08-07 Winding crown for watch without pendant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26451/30A GB353751A (en) 1930-09-04 1930-09-04 Improvements in winding crowns for watches without a pendant

Publications (1)

Publication Number Publication Date
GB353751A true GB353751A (en) 1931-07-30

Family

ID=10243815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26451/30A Expired GB353751A (en) 1930-09-04 1930-09-04 Improvements in winding crowns for watches without a pendant

Country Status (3)

Country Link
US (1) US1910078A (en)
FR (1) FR721124A (en)
GB (1) GB353751A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511757A (en) * 1947-03-10 1950-06-13 Waldman Joseph Crown sealing device
US2497935A (en) * 1947-07-11 1950-02-21 Feurer Bros Inc Dust-tight watch crown
US2557525A (en) * 1949-02-05 1951-06-19 Joseph Waldman & Sons Dust inhibiting watch crown
US2690645A (en) * 1951-01-11 1954-10-05 Hamilton Watch Co Watch crown

Also Published As

Publication number Publication date
US1910078A (en) 1933-05-23
FR721124A (en) 1932-02-29

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