GB760271A - Improvements in electric switches adapted for periodic interruption - Google Patents
Improvements in electric switches adapted for periodic interruptionInfo
- Publication number
- GB760271A GB760271A GB1252754A GB1252754A GB760271A GB 760271 A GB760271 A GB 760271A GB 1252754 A GB1252754 A GB 1252754A GB 1252754 A GB1252754 A GB 1252754A GB 760271 A GB760271 A GB 760271A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rack
- pivot
- acting
- electric switches
- periodic interruption
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H29/00—Switches having at least one liquid contact
- H01H29/006—Self interrupters, e.g. with periodic or other repetitive opening and closing of contacts
Landscapes
- Switches With Compound Operations (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
760,271. Interrupters. HODGKINSON (SALFORD), Ltd., J. May 2, 1955 [April 30, 1954], No. 12527/54. Class 38(5) In a make and break switch adapted for continuous interruption, a mercury' tube A is mounted on an arm B which is pivoted at c and oscillated by a rotating cam E acting on its free end b to open and close a circuit, the pivot c being slidably movable so that the ratio of the time open to the time closed per cycle may be varied. The pivot c is mounted on a slider or rack C moved by pinion D on a shaft d which also carried a pointer C' co-acting with a scale c<SP>2</SP> so that the position of the rack, and hence the duration of the "switch closed " portion of the cycle, may be set.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1252754A GB760271A (en) | 1954-04-30 | 1954-04-30 | Improvements in electric switches adapted for periodic interruption |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1252754A GB760271A (en) | 1954-04-30 | 1954-04-30 | Improvements in electric switches adapted for periodic interruption |
Publications (1)
Publication Number | Publication Date |
---|---|
GB760271A true GB760271A (en) | 1956-10-31 |
Family
ID=10006249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1252754A Expired GB760271A (en) | 1954-04-30 | 1954-04-30 | Improvements in electric switches adapted for periodic interruption |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB760271A (en) |
-
1954
- 1954-04-30 GB GB1252754A patent/GB760271A/en not_active Expired
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