GB1270833A - Improvements in or relating to apparatus for the control of the supply of electrical power - Google Patents

Improvements in or relating to apparatus for the control of the supply of electrical power

Info

Publication number
GB1270833A
GB1270833A GB02788/69A GB1278869A GB1270833A GB 1270833 A GB1270833 A GB 1270833A GB 02788/69 A GB02788/69 A GB 02788/69A GB 1278869 A GB1278869 A GB 1278869A GB 1270833 A GB1270833 A GB 1270833A
Authority
GB
United Kingdom
Prior art keywords
contacts
time switch
block
heater
energized
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
GB02788/69A
Inventor
Donald Copage
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.)
Diamond H Controls Ltd
Original Assignee
Diamond H Controls 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 Diamond H Controls Ltd filed Critical Diamond H Controls Ltd
Priority to GB02788/69A priority Critical patent/GB1270833A/en
Publication of GB1270833A publication Critical patent/GB1270833A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0202—Switches
    • H05B1/0208—Switches actuated by the expansion or evaporation of a gas or liquid
    • 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
    • G05D23/1923—Control of temperature characterised by the use of electric means characterised by the type of controller using thermal energy, the cost of which varies in function of time
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

1,270,833. 833. Electric heating systems, temperature control. DIAMOND H. CONTROLS Ltd. March 25, 1970 [March 11, 1969], No. 12788/69. Headings G3R and G3T. A block storage heater element 19, Fig. 1 is energized via snap action thermal relay contacts 12 and is maintained at a predetermined high temperature value during an "off-peak" tariff period pre-set on a time switch T and at a predetermined lower temperature level outside the off-peak period. A diaphragm 8 is connected to a sensor 10 which senses the block temperature. As the temperature increases the diaphragm opens successively normally closed contact pairs 2, 3. The diaphragm is displaceable by a knob K to preset the low temperature level while the high temperature level is pre-set by adjusting a screw 9. Outside the off-peak period the relay heater 15 is energized via contacts 2 and causes a bimetal strip 14 to bend and a screw 18 thereon effects closure of contacts 12 to energize the block heater element 19. During the off-peak period the relay heater 15 is energized via time switch T and contacts 3 to effect closure of contacts 12. Other block heaters may be connected in parallel, the time switch T carrying only the current necessary to heat the bi-metal strips of their control units. In a modification Fig. 2 (not shown) the contacts 2 and 3 carry the block heater current. In a modification Fig. 3 (not shown) the block heater current is carried by the time switch during the high temperature mode. In a further modification Fig. 4 (not shown) the block heater is energized only when the time switch T is closed. When the time switch is open a fan motor is energized.
GB02788/69A 1969-03-11 1969-03-11 Improvements in or relating to apparatus for the control of the supply of electrical power Expired GB1270833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB02788/69A GB1270833A (en) 1969-03-11 1969-03-11 Improvements in or relating to apparatus for the control of the supply of electrical power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB02788/69A GB1270833A (en) 1969-03-11 1969-03-11 Improvements in or relating to apparatus for the control of the supply of electrical power

Publications (1)

Publication Number Publication Date
GB1270833A true GB1270833A (en) 1972-04-19

Family

ID=10011136

Family Applications (1)

Application Number Title Priority Date Filing Date
GB02788/69A Expired GB1270833A (en) 1969-03-11 1969-03-11 Improvements in or relating to apparatus for the control of the supply of electrical power

Country Status (1)

Country Link
GB (1) GB1270833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010001110A3 (en) * 2008-07-01 2010-08-12 Diamond H Controls Limited Improvements to thermostat control devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010001110A3 (en) * 2008-07-01 2010-08-12 Diamond H Controls Limited Improvements to thermostat control devices

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