GB696369A - Improvements in and relating to thermosensitive devices and apparatus incorporating the same - Google Patents

Improvements in and relating to thermosensitive devices and apparatus incorporating the same

Info

Publication number
GB696369A
GB696369A GB10668/50A GB1066850A GB696369A GB 696369 A GB696369 A GB 696369A GB 10668/50 A GB10668/50 A GB 10668/50A GB 1066850 A GB1066850 A GB 1066850A GB 696369 A GB696369 A GB 696369A
Authority
GB
United Kingdom
Prior art keywords
blanket
supply
button
circuit
bridge
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
GB10668/50A
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 GB696369A publication Critical patent/GB696369A/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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/019—Heaters using heating elements having a negative temperature coefficient
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/036—Heaters specially adapted for garment heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

696,369. Supply systems for consumption apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. May 1, 1950 [May 4, 1949; May 4, 1949 ; Dec. 15, 1949], No. 10668/50. Class 38 (iv). [Also in Group XXXVI] A system for operating an indicating or controlling device in response to an abnormal rise in temperature in a load comprises a sensitive device in the form of a flexible cable (see Group XXXVI), including a conductor forming the load (e.g. the heater wire of a blanket or a winding of an electric machine) and a second conductor, the conductors being bridged by an organic material which is normally non- conductive and of low permittivity but the conductivity and permittivity of which increase with temperature. Protected heating systems for blankets. The current for the heater 11 is controlled by an adjustable thermal interrupter 26 external to the blanket. The system is switched on by a momentary operation of button 32 to connect the supply to a bridge formed by resistors 30, 31, inductor 29 and protective signal wire 14 in series with capacitor 28 which forms a resonant circuit with the inductor. In these conditions a relay 25 connected as a diagonal of the bridge pulls up and completes the supply circuit to the blanket, the supply to the bridge being maintained and resistor 35 being included in the capacitive arm after button 32 is released. A neon indicator 42 glows to show that the blanket is "on". If the blanket is overheated, the resulting change in the sensitive material lowers the impedance between wires 37, 38 and 40 and upsets the tuning of the circuit 28, 29 the current through 25 is reduced and the relay drops out. Deliberate switching off is effected by momentarily short-circuiting 25 by a button 45. Any circuit failure releases 25 by destroying the tuning of 28, 29 to the supply frequency. Specification 619,797, [Group XXXVI], is referred to.
GB10668/50A 1949-05-04 1950-05-01 Improvements in and relating to thermosensitive devices and apparatus incorporating the same Expired GB696369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US696369XA 1949-05-04 1949-05-04

Publications (1)

Publication Number Publication Date
GB696369A true GB696369A (en) 1953-08-26

Family

ID=22090248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10668/50A Expired GB696369A (en) 1949-05-04 1950-05-01 Improvements in and relating to thermosensitive devices and apparatus incorporating the same

Country Status (1)

Country Link
GB (1) GB696369A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001138A1 (en) * 1981-09-28 1983-03-31 Thermon Mfg Co Self-monitoring heat tracing system
GB2154817A (en) * 1984-02-22 1985-09-11 Northern Blankets Ltd Electrical heating circuits
EP2797383A1 (en) * 2013-04-25 2014-10-29 NV Bekaert SA Heating cable
CN112199835A (en) * 2020-09-30 2021-01-08 河北科技大学 Method and device for determining temperature rise of cable group and terminal equipment
WO2021175894A1 (en) * 2020-03-05 2021-09-10 Nv Bekaert Sa Heating conductive wire-like element

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001138A1 (en) * 1981-09-28 1983-03-31 Thermon Mfg Co Self-monitoring heat tracing system
GB2154817A (en) * 1984-02-22 1985-09-11 Northern Blankets Ltd Electrical heating circuits
EP2797383A1 (en) * 2013-04-25 2014-10-29 NV Bekaert SA Heating cable
WO2021175894A1 (en) * 2020-03-05 2021-09-10 Nv Bekaert Sa Heating conductive wire-like element
CN112199835A (en) * 2020-09-30 2021-01-08 河北科技大学 Method and device for determining temperature rise of cable group and terminal equipment
CN112199835B (en) * 2020-09-30 2023-02-14 河北科技大学 Method and device for determining temperature rise of cable group and terminal equipment

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