GB194455A - Improvements in or relating to thermally actuated valves and electric switches - Google Patents
Improvements in or relating to thermally actuated valves and electric switchesInfo
- Publication number
- GB194455A GB194455A GB51822A GB51822A GB194455A GB 194455 A GB194455 A GB 194455A GB 51822 A GB51822 A GB 51822A GB 51822 A GB51822 A GB 51822A GB 194455 A GB194455 A GB 194455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- valve
- abutment
- spring
- actuated valves
- 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
- H01H35/26—Details
- H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
- H01H35/2614—Means for adjustment of "ON" or "OFF" operating pressure by varying the bias on the pressure sensitive element
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Driven Valves (AREA)
Abstract
194,455. Wilkinson, G. Jan. 7, 1922. Thermally - actuated valves. - A thermallyactuated valve adapted to limit automatically the amount of heat supplied to the amount required for any particular purpose has the internal moving element arranged to form a distance-piece between a pair of flexible diaphragms which serve for the transmission of the loading and of the force exerted by a heat-operated diaphragm. The valve-member d, shown as a simple beat valve though it may be a double-beat or a butterfly valve, is arranged between a pair of diaphragms r, r<1> which form the sides of the valve casing a. The loading spring i is arranged between an abutment j resting on the diaphragm r and a movable abutment l adjusted by a milled head p. The abutment l has a tongue movable in a slot in the casing to act as an indicator. The head may be perforated to receive a spring-loaded spindle o adapted to be used in addition to or in place of the spring. The thermal element comprises a chamber b containing volatile fluid and closed by a, flexible diaphragm c bearing aginst the diaphragm r'. A stop c<1> is provided to prevent distortion and the diaphragm c may replace the diaphragm r<1>. The thermal element may be separate from the control chamber to which it is ecnnected by a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB51822A GB194455A (en) | 1922-01-07 | 1922-01-07 | Improvements in or relating to thermally actuated valves and electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB51822A GB194455A (en) | 1922-01-07 | 1922-01-07 | Improvements in or relating to thermally actuated valves and electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB194455A true GB194455A (en) | 1923-03-15 |
Family
ID=9705766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51822A Expired GB194455A (en) | 1922-01-07 | 1922-01-07 | Improvements in or relating to thermally actuated valves and electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB194455A (en) |
-
1922
- 1922-01-07 GB GB51822A patent/GB194455A/en not_active Expired
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