GB1272647A - Improvements in or relating to electric time switch mechanisms - Google Patents
Improvements in or relating to electric time switch mechanismsInfo
- Publication number
- GB1272647A GB1272647A GB4589569A GB4589569A GB1272647A GB 1272647 A GB1272647 A GB 1272647A GB 4589569 A GB4589569 A GB 4589569A GB 4589569 A GB4589569 A GB 4589569A GB 1272647 A GB1272647 A GB 1272647A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- contact
- spring
- carried
- abutment
- 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
- G04C23/02—Constructional details
- G04C23/10—Constructional details for actuating any element which operates, or initiates the operation of, the device concerned
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
1,272,647. Time switches. SANGAMO WESTON Ltd. 15 Sept., 1970 [17 Sept., 1969], No. 45895/69. Heading H1N. A heavy-current time switch comprises a rigid switch arm 10 having one end pivotally mounted and electrically connected to a first external connection terminal 14, an abutment 18 carried by the arm 10 intermediate its ends, spring means 15 at the other end of the arm 10 biasing the abutment 18 towards rotatable timecontrolled cam means 19, a stationary switch contact 22 carried by a second external connection terminal 23, and a co-operating movable contact 21 actuable by the arm 10. As shown, arm 10 is channel-shaped and cut away to be flexible at 11, the spring 15 is a tension spring, abutment 18 is adjustable by screw 17, and contact 21, carried on a blade spring 20, has a stem 24 passing through arm 10 with an enlarged head 25 such that arm 10 can pull contact 21 away from contact 22, but when the contacts are closed vibration of arm 10 is not transmitted to the contact 21. In a second embodiment (Figs. 2 and 3, not shown) the spring is a compression spring (34) and the moving contact is carried directly on arm 10 and is enclosed in a cup-shaped shroud (35). The arm 10 may be pivotally connected to terminal 14 by a hinged joint and a flexible copper braid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4589569A GB1272647A (en) | 1969-09-17 | 1969-09-17 | Improvements in or relating to electric time switch mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4589569A GB1272647A (en) | 1969-09-17 | 1969-09-17 | Improvements in or relating to electric time switch mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1272647A true GB1272647A (en) | 1972-05-03 |
Family
ID=10439016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4589569A Expired GB1272647A (en) | 1969-09-17 | 1969-09-17 | Improvements in or relating to electric time switch mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1272647A (en) |
-
1969
- 1969-09-17 GB GB4589569A patent/GB1272647A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |