GB353836A - Improvements in and relating to electric switches - Google Patents
Improvements in and relating to electric switchesInfo
- Publication number
- GB353836A GB353836A GB1725331A GB1725331A GB353836A GB 353836 A GB353836 A GB 353836A GB 1725331 A GB1725331 A GB 1725331A GB 1725331 A GB1725331 A GB 1725331A GB 353836 A GB353836 A GB 353836A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- electric switches
- pressure
- saltburn
- laurieston
- 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
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Fluid Pressure (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
353,836. Electrically-operated valves. MILLS, T. A., Laurieston, Saltburn-by-Sea, and BOSANQUET, W. S. B., Gainford, Darlington. April 30, 1930, No. 17253/31. Divided on 353,948. [Class 135.] In apparatus for regulating gas pressure, a rod 2 which moves up and down in accordance with the variation of the pressure, carries a contact disc 8 which is adapted to come into bridging engagement with one or other of two pairs of gravity-controlled nearly-balanced contact arms 10, 11, thereby closing circuits to relays which operate an electric motor in one direction or other, the motor operating a valve controlling the supply of gas.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1725331A GB353836A (en) | 1930-04-30 | 1930-04-30 | Improvements in and relating to electric switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1725331A GB353836A (en) | 1930-04-30 | 1930-04-30 | Improvements in and relating to electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB353836A true GB353836A (en) | 1931-07-30 |
Family
ID=10091943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1725331A Expired GB353836A (en) | 1930-04-30 | 1930-04-30 | Improvements in and relating to electric switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB353836A (en) |
-
1930
- 1930-04-30 GB GB1725331A patent/GB353836A/en not_active Expired
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