GB549193A - Improvements in and relating to time switches - Google Patents
Improvements in and relating to time switchesInfo
- Publication number
- GB549193A GB549193A GB804/42A GB80442A GB549193A GB 549193 A GB549193 A GB 549193A GB 804/42 A GB804/42 A GB 804/42A GB 80442 A GB80442 A GB 80442A GB 549193 A GB549193 A GB 549193A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- spring
- pointer
- discs
- jan
- 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
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
- G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
- G04C23/16—Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Electric Clocks (AREA)
Abstract
549,193. Time switches. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 20, 1942, No. 804. Convention date, Jan. 21, 1941. [Class 38 (v)] In a time switch, an " hour " shaft 27, encircling a " minute " shaft 22, bears an operating member 42 splined on it by the engagement of a spring 41 in a groove 43. The end of the spring forms a catch which engages the inner rim of a disc 35 which can be set to any radial position, indicated by a pointer 14. A further disc 34 can be set by a pointer 15. Each of these discs has a slot 39, 40 in one position and as the discs are rotated by the "hour" shaft, the slots permit the catch 41, and hence the operating member, to snap along the splined shaft under the influence of spring 46, through the collars 35, 34 in turn, the first movement closing contacts 45, 47, the second opening them again. The movement may be reset by means of a lever 19.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US549193XA | 1941-01-21 | 1941-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB549193A true GB549193A (en) | 1942-11-10 |
Family
ID=21994378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB804/42A Expired GB549193A (en) | 1941-01-21 | 1942-01-20 | Improvements in and relating to time switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB549193A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2824181A (en) * | 1953-11-12 | 1958-02-18 | Int Register Co | Automatic and manual control time switch |
| DE1125516B (en) * | 1958-05-16 | 1962-03-15 | Franz Morat K G Elektro Feinme | Time switch |
-
1942
- 1942-01-20 GB GB804/42A patent/GB549193A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2824181A (en) * | 1953-11-12 | 1958-02-18 | Int Register Co | Automatic and manual control time switch |
| DE1125516B (en) * | 1958-05-16 | 1962-03-15 | Franz Morat K G Elektro Feinme | Time switch |
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