GB657407A - A new or improved thermostatic electric switch responsive to changes of surface temperature - Google Patents

A new or improved thermostatic electric switch responsive to changes of surface temperature

Info

Publication number
GB657407A
GB657407A GB613349A GB613349A GB657407A GB 657407 A GB657407 A GB 657407A GB 613349 A GB613349 A GB 613349A GB 613349 A GB613349 A GB 613349A GB 657407 A GB657407 A GB 657407A
Authority
GB
United Kingdom
Prior art keywords
spring
contact
plate
bimetal
base
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
GB613349A
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.)
PETER RICHARD BENFORD
R E Thompson & Co Sunbury
Original Assignee
PETER RICHARD BENFORD
R E Thompson & Co Sunbury
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 PETER RICHARD BENFORD, R E Thompson & Co Sunbury filed Critical PETER RICHARD BENFORD
Priority to GB613349A priority Critical patent/GB657407A/en
Publication of GB657407A publication Critical patent/GB657407A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
    • G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
    • G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

657,407. Thermal switches. THOMPSON & CO. (SUNBURY), Ltd., R. E., and BENFORD, P. R. March 7,1949, No. 6133. [Class 38(v)] [Also in Group VI] A switch for controlling the heaters of a fish tank comprises a metal base-plate 1 to which is fixed one end of a bimetal strip 2 actuating, through an insulating rod 3, a leaf spring 4 of which one end is fixed to the base-plate 1 and the free end abuts an adjustable screw 18 and supports a contactcarrying spring 11. On rise of temperature the bimetal 2 rocks the spring 4 about the screw 18 and strains the spring 11 until the attraction between an armature 14 on its free end and a horse-shoe magnet 15 is overcome and the contact 12 snaps away from the contact 13. The opening movement of the spring 11 may be limited by a back-stop which is adjustable to control the temperature-differential. An insulating and heat-resisting fibre sheet 5 having an opening 6 for the rod 3 insulates the bimetal 2 from the springs 4, 11. The switch is mounted with its base-plate 1 in contact with the wall of the fish tank by a spring clip 22 having in turned ends 23 received in holes in the cover 20.
GB613349A 1949-03-07 1949-03-07 A new or improved thermostatic electric switch responsive to changes of surface temperature Expired GB657407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB613349A GB657407A (en) 1949-03-07 1949-03-07 A new or improved thermostatic electric switch responsive to changes of surface temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB613349A GB657407A (en) 1949-03-07 1949-03-07 A new or improved thermostatic electric switch responsive to changes of surface temperature

Publications (1)

Publication Number Publication Date
GB657407A true GB657407A (en) 1951-09-19

Family

ID=9809031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB613349A Expired GB657407A (en) 1949-03-07 1949-03-07 A new or improved thermostatic electric switch responsive to changes of surface temperature

Country Status (1)

Country Link
GB (1) GB657407A (en)

Similar Documents

Publication Publication Date Title
GB657407A (en) A new or improved thermostatic electric switch responsive to changes of surface temperature
US2421538A (en) Thermostatic switch
GB552967A (en) Improvements in or relating to bimetallic thermostats
GB1035515A (en) Thermally controlled electrical switch
GB460411A (en) An improved thermostat of the kind wherein an expansible liquid is employed as the temperature element
GB1003519A (en) Improvements in or relating to temperature-dependent electric switch devices
GB461114A (en) Improvements in or relating to thermostatic electric switches
GB433208A (en) Improvements in electric immersion type liquid heaters
GB710491A (en) A new or improved system for controlling the temperature of electric and other heaters
GB889634A (en) Improvements in magnetic snap action electric switches
GB408133A (en) Improvements in thermally controlled electrical switches
GB658705A (en) Improvements in electric thermostats
GB664424A (en) Improvements in or relating to thermostatically controlled electric switches or cut-outs
GB540431A (en) Improvements in or relating to thermostatic switch arrangements
SU89417A1 (en) Electric type thermostat with instant opening and closing of electrical contacts
GB683289A (en) Improvements in or relating to electric thermostats
GB444344A (en) Improvements relating to means for controlling the temperature of bodies, such as electrically energised heating devices
GB759906A (en) Improvements in or relating to electric immersion heaters
GB449908A (en) Improvements in thermostats
GB710350A (en) Improvements in and relating to electrical control or regulating systems
GB597535A (en) Improvements in or relating to electric current switches with magnetically controlled contacts
GB710152A (en) Improvements in electric power regulators, particularly for electric heating apparatus
GB641919A (en) Improvements in thermostatic electric cut-outs
GB649011A (en) Improvements in or relating to thermostats for controlling electrical heating apparatus
GB657347A (en) Improvements in thermostatic snap action switches