GB501686A - Improvements in and relating to thermostatic control switches - Google Patents

Improvements in and relating to thermostatic control switches

Info

Publication number
GB501686A
GB501686A GB1408/38A GB140838A GB501686A GB 501686 A GB501686 A GB 501686A GB 1408/38 A GB1408/38 A GB 1408/38A GB 140838 A GB140838 A GB 140838A GB 501686 A GB501686 A GB 501686A
Authority
GB
United Kingdom
Prior art keywords
contact
carrying
jan
plug
contacts
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
GB1408/38A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB501686A publication Critical patent/GB501686A/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

501,686. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 15, 1938, No. 1408. Convention date, Jan. 15, 1937. [Class 38 (v)] A thermal switch comprises a U-shaped bimetallic strip 40 fastened to an adjustable member 58 and carrying at its free end a trough shaped armature 42 within which is mounted a spring carrying a movable contact 45 co-operating with an adjustable fixed contact 35 carried on an extension 30 of a plug-in contact 28 which also carries a snapaction magnet 33. An auxiliary heating coil 62 is connected between a second plug in contact 29 and a member 47 on which the member 58 is pivoted, so as to be in series with the bimetal strip 40 and contacts 45, 35. The switch is mounted on a wall by being plugged in to the control circuit by contacts 28, 29 and the temperature is set by a knob 27 on a screw threaded shaft 53 which moves the member 58 carrying the bimetallic strip against the action of a leaf spring 59. The differential is varied by screwing contact 35 into or out of plate 30.
GB1408/38A 1937-01-15 1938-01-15 Improvements in and relating to thermostatic control switches Expired GB501686A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US501686XA 1937-01-15 1937-01-15

Publications (1)

Publication Number Publication Date
GB501686A true GB501686A (en) 1939-03-03

Family

ID=21963721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1408/38A Expired GB501686A (en) 1937-01-15 1938-01-15 Improvements in and relating to thermostatic control switches

Country Status (1)

Country Link
GB (1) GB501686A (en)

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