GB728302A - Improvements relating to gas fired furnaces - Google Patents

Improvements relating to gas fired furnaces

Info

Publication number
GB728302A
GB728302A GB22808/52A GB2280852A GB728302A GB 728302 A GB728302 A GB 728302A GB 22808/52 A GB22808/52 A GB 22808/52A GB 2280852 A GB2280852 A GB 2280852A GB 728302 A GB728302 A GB 728302A
Authority
GB
United Kingdom
Prior art keywords
relay
valve
energized
closes
gas
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
GB22808/52A
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.)
JOHN RICHARD SEVILLE
SPOONER FOOD MACHINERY ENGINEE
Original Assignee
JOHN RICHARD SEVILLE
SPOONER FOOD MACHINERY ENGINEE
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 JOHN RICHARD SEVILLE, SPOONER FOOD MACHINERY ENGINEE filed Critical JOHN RICHARD SEVILLE
Priority to GB22808/52A priority Critical patent/GB728302A/en
Publication of GB728302A publication Critical patent/GB728302A/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
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/04—Prepurge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/06—Fail safe for flame failures

Abstract

728,302. Controlling gas burners. SEVILLE, J. R., and SPOONER FOOD MACHINERY ENGINEERING CO., Ltd. Aug. 6, 1953 [Sept. 11, 1952], No. 22808/52. Class 75 (1). Control means for a burner adapted to be supplied with gas at either a high or low rate comprises a first relay 11 which, when energized, energizes both an igniter 12 and a second relay 13 which opens an electrically operated valve 14 supplying gas at a low rate and closes a contact 13a in the operating circuit of a second valve 18 supplying gas at a high rate, the opening of the second valve 18 taking place when the first relay 11 is de-energized and means being provided for automatically interrupting all the circuits when necessary, for example in cases of flame or air supply failure or opening of an inspection door. The first relay 11 is energized by a push button 8 and closes contacts 11a, 11b for energizing the second relay 13 and the igniter 12 respectively and opens contacts 11c in the circuit to the high rate gas valve 18. The second relay 13 then closes contacts 13b to open the low rate fuel valve 14. The burner flame closes a switch 15 to energize a third relay 16 which closes contacts 16a in a circuit for energizing the second relay 13 independently of the first relay 11 and the push button 8. When the latter is released therefore the igniter is de-energized but the low rate valve 14 remains open and the contact 11c of the first relay 11 closes to complete the circuit to the high rate valve 18 by way of an oven thermostat 17. The electric supply to the control circuits described is controlled by a switch 7 actuated by an oven inspection door, and by a contact closed by a delay action relay 6 energized by a switch 5 actuated by the air flowing to the burner from a fan controlled by a contactor 2. A two-way switch 1 in one position energizes the fan contactor 2 and in its other position connects the supply to a switch 3 which is actuated by the main gas tap and controls an alarm device 4; if the fan is switched off with the gas tap on the alarm device is energized. Specifications 694,181 and 702,890 are referred to.
GB22808/52A 1952-09-11 1952-09-11 Improvements relating to gas fired furnaces Expired GB728302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22808/52A GB728302A (en) 1952-09-11 1952-09-11 Improvements relating to gas fired furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22808/52A GB728302A (en) 1952-09-11 1952-09-11 Improvements relating to gas fired furnaces

Publications (1)

Publication Number Publication Date
GB728302A true GB728302A (en) 1955-04-20

Family

ID=10185384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22808/52A Expired GB728302A (en) 1952-09-11 1952-09-11 Improvements relating to gas fired furnaces

Country Status (1)

Country Link
GB (1) GB728302A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743009A (en) * 1971-06-23 1973-07-03 Bec Prod Inc Air conditioning and heating control system including control panel
FR2404170A1 (en) * 1977-09-22 1979-04-20 Greenmace Ltd Oil burner for space heater - burns waste oil from internal combustion engines using compressed air and preheating to form spray

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743009A (en) * 1971-06-23 1973-07-03 Bec Prod Inc Air conditioning and heating control system including control panel
FR2404170A1 (en) * 1977-09-22 1979-04-20 Greenmace Ltd Oil burner for space heater - burns waste oil from internal combustion engines using compressed air and preheating to form spray

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