GB879858A - Electric time switch mechanism - Google Patents
Electric time switch mechanismInfo
- Publication number
- GB879858A GB879858A GB3993557A GB3993557A GB879858A GB 879858 A GB879858 A GB 879858A GB 3993557 A GB3993557 A GB 3993557A GB 3993557 A GB3993557 A GB 3993557A GB 879858 A GB879858 A GB 879858A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- follower
- contacts
- contact
- closed
- 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
- 230000001360 synchronised effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
- H01H43/02—Details
- H01H43/04—Means for time setting
- H01H43/06—Means for time setting comprising separately adjustable parts for each programme step, e.g. with tappets
Landscapes
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
879,858. Time switches. INTERNATIONAL REGISTER CO. Dec. 23, 1957, No. 39935/57. Class 38 (5). The switch has two cams secured together, one of the cams having a follower arranged so that rotation of the cam in one direction causes pivotal movement of the follower, and rotation in the other direction causes sliding movement of the follower. The cam 54 is secured to a shaft 56 and is connected to a synchronous motor 76 by a friction clutch and gearing. The cam has three recesses 92, 94, 96 which divide the cam into three dwells 90a, 90b and 90c, dwell 90b being of smaller radius than the others. The second cam 100 is riveted to the cam 54 and co-operates with the follower 48 which is guided by fixed pins 44, 46. Normally, the cams rotate clockwise and when cam 100 engages its follower the latter slides to move contact 36 from a contact 28 to stop the motor 76. Reverse rotation during setting tilts the follower clockwise about pin 44 to open the same contacts. The cam 54 acts through a follower 84 as in Specification 879,466 on contacts 28, 35 on springs 22, 24, and on a contact 30 on a spring 26 and co-operating with a fixed contact 32. When the follower is on dwells 90a, 90c, contacts 28, 35 and 30, 32 are closed, when on dwell 90b, contacts 28, 35 are closed, and when in any of the recesses, both sets are open. The motor 76 is connected through 36, 28 and 35 so that it is only energized when all three are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3993557A GB879858A (en) | 1957-12-23 | 1957-12-23 | Electric time switch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3993557A GB879858A (en) | 1957-12-23 | 1957-12-23 | Electric time switch mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB879858A true GB879858A (en) | 1961-10-11 |
Family
ID=10412296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3993557A Expired GB879858A (en) | 1957-12-23 | 1957-12-23 | Electric time switch mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB879858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089626A (en) * | 2017-05-26 | 2017-08-25 | 淅川县电业局 | A kind of transformer maintenance car |
-
1957
- 1957-12-23 GB GB3993557A patent/GB879858A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089626A (en) * | 2017-05-26 | 2017-08-25 | 淅川县电业局 | A kind of transformer maintenance car |
| CN107089626B (en) * | 2017-05-26 | 2023-10-10 | 淅川县电业局 | Mutual inductor maintenance vehicle |
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