GB397732A - Means for automatically closing gas valves - Google Patents

Means for automatically closing gas valves

Info

Publication number
GB397732A
GB397732A GB3406732A GB3406732A GB397732A GB 397732 A GB397732 A GB 397732A GB 3406732 A GB3406732 A GB 3406732A GB 3406732 A GB3406732 A GB 3406732A GB 397732 A GB397732 A GB 397732A
Authority
GB
United Kingdom
Prior art keywords
rod
catch
lever
pawl
pin
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
GB3406732A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3406732A priority Critical patent/GB397732A/en
Publication of GB397732A publication Critical patent/GB397732A/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
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/024—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being of the rod type, tube type, or of a similar type
    • G05D23/026—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being of the rod type, tube type, or of a similar type the sensing element being placed outside a regulating fluid flow
    • G05D23/027—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being of the rod type, tube type, or of a similar type the sensing element being placed outside a regulating fluid flow for combustible fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

397,732. Thermally-actuated valves. KAPPELER, R., 21, Ottostrasse, Z³rich, Switzerland. Dec. 1, 1932, No. 34067. [Class 135.] A thermally-actuated safety cut-off valve is normally held in the open position by a catch adapted to be released by an expanding rod coupled to the catch through a rack and pawl or one-way friction clutch, so that the catch is released immediately the rod starts to contract. The expanding rod 1 subject to the heat of a burner is anchored at one end to a fixed part and at the other to a lever 2 engaging at its free end with the shorter arm of a lever 3 loaded by a spring 5. The longer arm of the lever 3 is coupled by a link 21 to a rod 4 slidably mounted in a member 10 carried by a plate 22 pivoted to the catch 11. Mounted within the member 10 is a wedging member comprising a ball 6 carried by a part 7 itself supported by a box-shaped part 8 pivoted to the member 10. On opening the gas cock, the handle 15 engages a pin 14 on a disc 12 to rotate the disc and stress a spring 13, the disc being retained in this position by the catch 11 engaging a projection 16. The member 8 is acted upon by a spring 9 to press the member 7 in the direction to grip the rod 4 so that when the thermal rod cools the rod 4 and member 10 move together to release the catch. In the event of the clutch failing a rack on the lower part of the rod 4 co-operates with a pawl 23 to release the catch. The pawl and rack arrangement may be used without the friction coupling. As the pin 16 and cock move to the closed position the pin 16 engages one end of a lever 17 causing the other end of the lever to engage a pin 26 on the member 8 moving it against the action of the spring 9 to release the friction clutch and remove the pawl from engagement with the rack.
GB3406732A 1932-12-01 1932-12-01 Means for automatically closing gas valves Expired GB397732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3406732A GB397732A (en) 1932-12-01 1932-12-01 Means for automatically closing gas valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3406732A GB397732A (en) 1932-12-01 1932-12-01 Means for automatically closing gas valves

Publications (1)

Publication Number Publication Date
GB397732A true GB397732A (en) 1933-08-31

Family

ID=10360966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3406732A Expired GB397732A (en) 1932-12-01 1932-12-01 Means for automatically closing gas valves

Country Status (1)

Country Link
GB (1) GB397732A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130686A (en) * 1982-11-24 1984-06-06 Normand Electrical Company Ltd A temperature responsive trigger mechanism for valve actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130686A (en) * 1982-11-24 1984-06-06 Normand Electrical Company Ltd A temperature responsive trigger mechanism for valve actuator

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