GB435083A - Improvements in or relating to thermostatic or pressure controlled valves - Google Patents
Improvements in or relating to thermostatic or pressure controlled valvesInfo
- Publication number
- GB435083A GB435083A GB37370/34A GB3737034A GB435083A GB 435083 A GB435083 A GB 435083A GB 37370/34 A GB37370/34 A GB 37370/34A GB 3737034 A GB3737034 A GB 3737034A GB 435083 A GB435083 A GB 435083A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- valve
- contact
- motor
- arm
- 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
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
Abstract
435,083. Electrically-operated valves. BRITISH THERMOSTAT CO., Ltd., Windmill Road, Sunbury, Middlesex, and PAYNE, M., 50, Hook Road, Surbiton, Surrey. Dec. 31, 1934, No. 37370. [Class 135] In a thermostatically or pressure controlled valve a, Fig. 2, operated by a reversible electric motor through reduction gearing, the motor has two opposed field windings p, q, Fig. 3, connected respectively to two contacts g, h, of a thermostatic or pressure operated switch mechanism, the motor circuit being closed through one or other of these windings by the engagement of one or other of the contacts with a third contact j and the resulting movement of the valve opening the motor circuit so that the valve stays in its new position until a further change of temperature or pressure occurs. As shown, the windings are connected by flexible leads x, y to two insulated contacts g, h carried on leaf springs z attached to an arm f actuated by a known type of metal bellows device. These contacts embrace a third contact j adjustably mounted on a rod k connected to a screwed part n of the valve spindle b so as to move when the valve moves. The contact j is connected by a flexible lead w to a source of current. The arm f is biassed by an adjustable spring (not shown). The two contacts may be carried by the rod k and the contact j by the arm f. A rocking arm may be employed instead of the rod k. The motor is designed so as to be capable of being left indefinitely in a stalled condition without damage so that disconnection of the motor circuit in the valve end positions is avoided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB37370/34A GB435083A (en) | 1934-12-31 | 1934-12-31 | Improvements in or relating to thermostatic or pressure controlled valves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB37370/34A GB435083A (en) | 1934-12-31 | 1934-12-31 | Improvements in or relating to thermostatic or pressure controlled valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB435083A true GB435083A (en) | 1935-09-13 |
Family
ID=10395939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37370/34A Expired GB435083A (en) | 1934-12-31 | 1934-12-31 | Improvements in or relating to thermostatic or pressure controlled valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB435083A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2527851A (en) * | 1944-11-30 | 1950-10-31 | Gen Controls Co | Fluid control valve |
US2872154A (en) * | 1954-08-25 | 1959-02-03 | Henry Valve Company Inc | Thermostatic control valve |
-
1934
- 1934-12-31 GB GB37370/34A patent/GB435083A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2527851A (en) * | 1944-11-30 | 1950-10-31 | Gen Controls Co | Fluid control valve |
US2872154A (en) * | 1954-08-25 | 1959-02-03 | Henry Valve Company Inc | Thermostatic control valve |
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