GB864481A - Improvements in or relating to thermally-operated valves - Google Patents

Improvements in or relating to thermally-operated valves

Info

Publication number
GB864481A
GB864481A GB3768757A GB3768757A GB864481A GB 864481 A GB864481 A GB 864481A GB 3768757 A GB3768757 A GB 3768757A GB 3768757 A GB3768757 A GB 3768757A GB 864481 A GB864481 A GB 864481A
Authority
GB
United Kingdom
Prior art keywords
valve
toggle mechanism
bellows
lever
thermally
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
Application number
GB3768757A
Inventor
John Edward Sherlock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thermostat Co Ltd
Original Assignee
British Thermostat Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thermostat Co Ltd filed Critical British Thermostat Co Ltd
Priority to GB3768757A priority Critical patent/GB864481A/en
Publication of GB864481A publication Critical patent/GB864481A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Combustion (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

864,481. Valves. BRITISH THERMOSTAT CO. Ltd. Feb. 12, 1959 [Dec. 3, 1957], No. 37687/57. Class 135. A thermally actuated safety valve for a liquid fuel burner comprises a bellows 2, Fig. 1, connected by a capillary tube 1 to a phial (not shown) located at the point where excess heat may occur. Upon expansion of the bellows 2 the rod 4 is depressed to overcome a toggle mechanism comprising blades 10a, 10b loaded by a spring member 10 and so close the valve member 5 on the seat 6. The toggle mechanism 10, 10a, 10b now holds the valve closed and reopening is effected by means of a tool or probe inserted through one or other of the tapped holes 11 to move the toggle mechanism to its other position. In a modification, Fig. 3, a lever 15 is attached to the blade 10b and co-operates with a pusher button 13 for moving the valve to the open position. The lever 15 also determines the position of a spring-loaded plunger 20 which acts on switch 17, 19 in the circuit of an alarm or indicating device.
GB3768757A 1957-12-03 1957-12-03 Improvements in or relating to thermally-operated valves Expired GB864481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3768757A GB864481A (en) 1957-12-03 1957-12-03 Improvements in or relating to thermally-operated valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3768757A GB864481A (en) 1957-12-03 1957-12-03 Improvements in or relating to thermally-operated valves

Publications (1)

Publication Number Publication Date
GB864481A true GB864481A (en) 1961-04-06

Family

ID=10398278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3768757A Expired GB864481A (en) 1957-12-03 1957-12-03 Improvements in or relating to thermally-operated valves

Country Status (1)

Country Link
GB (1) GB864481A (en)

Similar Documents

Publication Publication Date Title
US2441192A (en) Thermostatic switch
GB864481A (en) Improvements in or relating to thermally-operated valves
GB1079884A (en) Temperature responsive switching devices
US3024811A (en) Valve control apparatus
GB690220A (en) Improvements in or relating to snap acting mechanisms
GB499874A (en) Improvements in or relating to electric vacuum switches for use in circuits controlled by physical conditions
GB786239A (en) Improvements in thermostatic control devices
US2494660A (en) Kathe
GB954940A (en) An automatic electric switch
US2113494A (en) Snap action mechanism
US1229862A (en) Time-controlled trip mechanism for fireless cookers.
US2711458A (en) Thermostatically operated shut-off means
GB930652A (en) Improvements in electric thermostats
GB593411A (en) Improvements in or relating to temperature regulating devices for electric ovens andlike cooking appliances
GB1405605A (en) Timing device for auxiliary contacts
US2733012A (en) garner
GB521599A (en) Thermally responsive temperature regulating device
GB1203699A (en) Temperature control device
US2372464A (en) Thermostat
GB625126A (en) Improvements in or relating to valve devices for controlling the flow of gas
GB793403A (en) Improvements in or relating to electric thermostatically controlled switches
GB903539A (en) A thermostatically controlled mixing valve
GB935526A (en) Control apparatus
GB586983A (en) Improvements in or relating to thermostatically operated electric switch devices
GB986219A (en) Device for controlling air flow as a function of temperatures in a space