GB589963A - Improvements in or relating to safety control systems for heating apparatus - Google Patents

Improvements in or relating to safety control systems for heating apparatus

Info

Publication number
GB589963A
GB589963A GB1282044A GB1282044A GB589963A GB 589963 A GB589963 A GB 589963A GB 1282044 A GB1282044 A GB 1282044A GB 1282044 A GB1282044 A GB 1282044A GB 589963 A GB589963 A GB 589963A
Authority
GB
United Kingdom
Prior art keywords
valve
solenoid
burner
resistor
pilot burner
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
GB1282044A
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.)
Robertshaw Thermostat Co
Original Assignee
Robertshaw Thermostat Co
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 Robertshaw Thermostat Co filed Critical Robertshaw Thermostat Co
Priority to GB1282044A priority Critical patent/GB589963A/en
Publication of GB589963A publication Critical patent/GB589963A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/14—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermo-sensitive resistors
    • F23N5/146—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermo-sensitive resistors using electrical or electromechanical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)

Abstract

589,963. Gas burners. MAY, P. (Robertshaw Thermostat Co.). July 5. 1944, No. 12820. [Class 75 (i)] [Also in Group XXIX] The manual or thermostatic opening of a valve 16 allows gas to pass to a pilot burner 12 and completes the secondary circuit of a mains energized transformer 22 through a ballast resistor 34 to a flame sensitive resistance element 28 adjacent the pilot burner 12 and an electromagnet or solenoid operating a valve 18 controlling the gas supply to the main burner 10, the element 28 and the solenoid being arranged in parallel and the current passing through the solenoid being insufficient to open the valve 18 while the element 28 is cold. The burner 12 may then be ignited and after about a minute a switch 38 arranged with a constant resistance in parallel with the resistor 34 is closed, the consequent increased current through the solenoid opening the valve 18. The switch 38 is then released to open position, and so long as the element 28 is heated the valve 18 remains open. Variations in line voltage to the transformer 22 are compensated for by variations in the resistance of the resistor 34 to render constant the release time of the solenoid actuated valve 18 if the pilot burner is extinguished, A fuse 44 protects the solenoid coil if the circuit of the element 28 fails..Specification 572,130 is referred to.
GB1282044A 1944-07-05 1944-07-05 Improvements in or relating to safety control systems for heating apparatus Expired GB589963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1282044A GB589963A (en) 1944-07-05 1944-07-05 Improvements in or relating to safety control systems for heating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1282044A GB589963A (en) 1944-07-05 1944-07-05 Improvements in or relating to safety control systems for heating apparatus

Publications (1)

Publication Number Publication Date
GB589963A true GB589963A (en) 1947-07-04

Family

ID=10011731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1282044A Expired GB589963A (en) 1944-07-05 1944-07-05 Improvements in or relating to safety control systems for heating apparatus

Country Status (1)

Country Link
GB (1) GB589963A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964535C (en) * 1947-11-05 1957-05-23 Walter George See Burner in which the fuel supply is controlled with the help of an electrical ignition resistor, the resistance of which decreases with increasing temperature
GB2219649A (en) * 1988-02-27 1989-12-13 Stanley Murray A water or other fluid supply system
GB2267336A (en) * 1992-05-30 1993-12-01 Blue Circle Heating Ltd Control of heating appliance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964535C (en) * 1947-11-05 1957-05-23 Walter George See Burner in which the fuel supply is controlled with the help of an electrical ignition resistor, the resistance of which decreases with increasing temperature
GB2219649A (en) * 1988-02-27 1989-12-13 Stanley Murray A water or other fluid supply system
GB2267336A (en) * 1992-05-30 1993-12-01 Blue Circle Heating Ltd Control of heating appliance
GB2267336B (en) * 1992-05-30 1994-05-18 Blue Circle Heating Ltd Heating appliances

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