GB456384A - Improvements in clock-operated electric switches - Google Patents
Improvements in clock-operated electric switchesInfo
- Publication number
- GB456384A GB456384A GB2087335A GB2087335A GB456384A GB 456384 A GB456384 A GB 456384A GB 2087335 A GB2087335 A GB 2087335A GB 2087335 A GB2087335 A GB 2087335A GB 456384 A GB456384 A GB 456384A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- pin
- arm
- clock
- spokes
- 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
- G04C23/34—Mechanisms continuously running to relate the operation(s) to the time of day with provision for automatic modification of the programme, e.g. on Sunday
- G04C23/347—Mechanisms continuously running to relate the operation(s) to the time of day with provision for automatic modification of the programme, e.g. on Sunday some operations being overridden
-
- 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
- G04C23/02—Constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
456,384. Time switches. OSBORN, H. J., Burnside, Old Kilpatrick, Dumbartonshire, and SHARP, W., 32, Barrington Drive, Glasgow. July 23, 1935, No. 20873. [Class 38 (v)] A time switch comprises a lever 7 pivoted at 6 and having a double contact 10 movable between fixed contacts 8, 9, a snap-action being provided by a permanent magnet 20 and armature 19. The lever 7 is moved from the position shown by the engagement of a clockdriven arm 14 with an insulating cam surface 12 on the lever 7. The return movement is effected by a pin 16 on a second clock-driven arm 15 engaging a second cam surface 13 on the lever 7. A second pin 17 on arm 15 rotates a star-wheel 27 having seven spokes so that once a week, a pin 26 inserted into any one of the spokes tilts a lever 21 pivoted at 22 to separate contacts 23, 24 in series with contact 10, thus putting the switch out of action for one day of each week. The switch is stated to be useful for controlling the energization of a relay described in Specification 291,494, [Class 38 (v)].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2087335A GB456384A (en) | 1935-07-23 | 1935-07-23 | Improvements in clock-operated electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2087335A GB456384A (en) | 1935-07-23 | 1935-07-23 | Improvements in clock-operated electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB456384A true GB456384A (en) | 1936-11-09 |
Family
ID=10153175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2087335A Expired GB456384A (en) | 1935-07-23 | 1935-07-23 | Improvements in clock-operated electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB456384A (en) |
-
1935
- 1935-07-23 GB GB2087335A patent/GB456384A/en not_active Expired
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