GB488058A - Improvements in or relating to a winding mechanism for a keyless watch - Google Patents
Improvements in or relating to a winding mechanism for a keyless watchInfo
- Publication number
- GB488058A GB488058A GB19028/37A GB1902837A GB488058A GB 488058 A GB488058 A GB 488058A GB 19028/37 A GB19028/37 A GB 19028/37A GB 1902837 A GB1902837 A GB 1902837A GB 488058 A GB488058 A GB 488058A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crown
- washer
- stem
- coupling member
- engages
- 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
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
- G04B37/103—Hermetic sealing of openings, joints, passages or slits of winding stems by screwing the crown onto the case
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
Abstract
488,058. Watches. COLOMB, H., and TAVANNES WATCH CO. SOC. ANON. July 8, 1937, No. 19028. Convention date, Aug. 2, 1936. [Class 139] Keyless mechanism.-In a winding-mechanism the crown 1 is movable into engagement with a coupling member 7 on the stem 9 which member is adjustable axially relative to the stem for varying its operative length, means being provided for locking the member 7 in any desired position. A female member 5, Fig. 2, fixed within the crown 1 has a squared portion which engages the squared coupling member 7 when the crown, unscrewed from the shoulder, is moved upwards by a spring 14. The stem 9, flattened at 10, receives a washer 11 which prevents rotation from being transmitted to a lock-nut 13. In a modification, the washer 11 is replaced by a tongued member 34, Fig. 5, which engages a groove in the coupling member. In another modification, the washer is omitted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH488058X | 1936-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB488058A true GB488058A (en) | 1938-06-30 |
Family
ID=4516522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19028/37A Expired GB488058A (en) | 1936-08-02 | 1937-07-08 | Improvements in or relating to a winding mechanism for a keyless watch |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB488058A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389551A (en) * | 1966-06-14 | 1968-06-25 | Couronnes Boninchi S A Fab De | Hermetic control device for a watchmaker's movement in a casing |
| US4313187A (en) * | 1980-01-24 | 1982-01-26 | Citizen Watch Co., Ltd. | Water resisting crown structure for electronic wristwatches |
-
1937
- 1937-07-08 GB GB19028/37A patent/GB488058A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389551A (en) * | 1966-06-14 | 1968-06-25 | Couronnes Boninchi S A Fab De | Hermetic control device for a watchmaker's movement in a casing |
| US4313187A (en) * | 1980-01-24 | 1982-01-26 | Citizen Watch Co., Ltd. | Water resisting crown structure for electronic wristwatches |
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