GB553146A - Watch having a device for measurement of time intervals - Google Patents
Watch having a device for measurement of time intervalsInfo
- Publication number
- GB553146A GB553146A GB14333/41A GB1433341A GB553146A GB 553146 A GB553146 A GB 553146A GB 14333/41 A GB14333/41 A GB 14333/41A GB 1433341 A GB1433341 A GB 1433341A GB 553146 A GB553146 A GB 553146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hands
- spindle
- watch
- crown
- nov
- 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
- G04F—TIME-INTERVAL MEASURING
- G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
553,146. Watches. MANUFACTURE DES MONTRES UNIVERSAL PERRET ET BERTHOUD SOC. ANON. Nov. 6, 1941, Nos. 14333 and 14334. Convention dates, Nov. 6, 1940, and Sept. 22, 1941. [Class 139] A watch with a stop mechanism for measuring time intervals has an additional dial and hour and minute hands which can be set independently of the watch movement to indicate the moment of starting of the measuring period. As shown in Fig. 2 applied to a wrist watch with a chronograph hand 3 and counting hands and dials 5, 6 and 7 for hours, minutes and seconds additional hands 9, 10 co-operating with a small dial (not shown) are provided for setting the starting time. These hands are secured to nested sleeves loose on a fixed axle and carrying pinions 11, 12 connected by gearing 13 to 17 and 19 manipulated by a crown 18. As shown in Fig. 4 the crown is fixed to an axially movable spindle 22 which when pulled permits a prismatic portion 25 on the spindle to engage a polygonal hole in the driving element 24 of the gear train to the hands 9, 10. The spindle 22 is formed with grooves 26, 27 that co-operate with spring blades 28, 29 to hold the spindle in one or other of its set positions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH553146X | 1940-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB553146A true GB553146A (en) | 1943-05-10 |
Family
ID=4519788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14333/41A Expired GB553146A (en) | 1940-11-06 | 1941-11-06 | Watch having a device for measurement of time intervals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB553146A (en) |
-
1941
- 1941-11-06 GB GB14333/41A patent/GB553146A/en not_active Expired
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