GB490481A - An improved electric heater - Google Patents

An improved electric heater

Info

Publication number
GB490481A
GB490481A GB2169237A GB2169237A GB490481A GB 490481 A GB490481 A GB 490481A GB 2169237 A GB2169237 A GB 2169237A GB 2169237 A GB2169237 A GB 2169237A GB 490481 A GB490481 A GB 490481A
Authority
GB
United Kingdom
Prior art keywords
heating element
resistance
control
wire
control resistance
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
GB2169237A
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.)
H J Osborn & Sharp Ltd
Original Assignee
H J Osborn & Sharp 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 H J Osborn & Sharp Ltd filed Critical H J Osborn & Sharp Ltd
Priority to GB2169237A priority Critical patent/GB490481A/en
Publication of GB490481A publication Critical patent/GB490481A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/24—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

490,481. Electric heating ; automatic regulation. OSBORN, H. J., and OSBORN & SHARP, Ltd., H. J. Aug. 6, 1937, Nos. 21692 and 26338. [Class 39 (iii)] [Also in Group XXXV] A self-regulating electric heater comprises a wire element with a positive temperature coefficient and a wire control resistance with a higher positive temperature coefficient, the disposition and relative resistance of the two being such that heat flows from the heating element to the control resistance whereby the resistance of the latter is increased and the current flow to the heating element is decreased. In an iron, Fig. 3, the heating element is a wire a of a material sold under the Registered Trade Mark " Nichrome " and is in series with control resistance wires b, b<1> of commercially pure nickel. The wires are wound on and arranged between mica sheets. The heating element and the control resistances are separated by an asbestos sheet h, and a steel plate i. A metal strap k extends over the control resistances. In a modification a single adjustable control resistance is employed. In a stove or furnace, the heating element is in the secondary circuit of a transformer and the control resistance is arranged in the wall or interior of the furnace in the primary circuit. Specification 482,544 is referred to.
GB2169237A 1937-08-06 1937-08-06 An improved electric heater Expired GB490481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2169237A GB490481A (en) 1937-08-06 1937-08-06 An improved electric heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2169237A GB490481A (en) 1937-08-06 1937-08-06 An improved electric heater

Publications (1)

Publication Number Publication Date
GB490481A true GB490481A (en) 1938-08-16

Family

ID=10167234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2169237A Expired GB490481A (en) 1937-08-06 1937-08-06 An improved electric heater

Country Status (1)

Country Link
GB (1) GB490481A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400250A (en) * 1966-01-03 1968-09-03 Texas Instruments Inc Heating apparatus
WO1982003693A1 (en) * 1981-04-09 1982-10-28 Inc Rosemount Passive temperature control arrangement for fluid flow stream sensor heater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400250A (en) * 1966-01-03 1968-09-03 Texas Instruments Inc Heating apparatus
WO1982003693A1 (en) * 1981-04-09 1982-10-28 Inc Rosemount Passive temperature control arrangement for fluid flow stream sensor heater
US4458137A (en) * 1981-04-09 1984-07-03 Rosemount Inc. Electric heater arrangement for fluid flow stream sensors

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