GB372433A - Improvements in variable electrical resistances - Google Patents

Improvements in variable electrical resistances

Info

Publication number
GB372433A
GB372433A GB492531A GB492531A GB372433A GB 372433 A GB372433 A GB 372433A GB 492531 A GB492531 A GB 492531A GB 492531 A GB492531 A GB 492531A GB 372433 A GB372433 A GB 372433A
Authority
GB
United Kingdom
Prior art keywords
resistance
plate
cap
springs
insulating
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
GB492531A
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.)
Steatit Magnesia AG
Original Assignee
Steatit Magnesia AG
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 Steatit Magnesia AG filed Critical Steatit Magnesia AG
Publication of GB372433A publication Critical patent/GB372433A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/08—Cooling, heating or ventilating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/01—Mounting; Supporting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustable Resistors (AREA)
  • Details Of Resistors (AREA)
  • Thermally Actuated Switches (AREA)
  • Fuses (AREA)

Abstract

372,433. Resistance coatings and deposits ; variable resistances. STEATIT-MAGNESIA AKT.-GES., 18, Breite Strasse, Pankow, Berlin. Feb. 16, 1931, No. 4925. Convention date, March 24, 1930. [Class 37.] In a variable resistance in which a coating of resistance material is arranged on an arcuate insulating support, cooling is facilitated by applying the resistance material on a thin layer of varnish, enamel, or other insulating material on a metal plate which serves to radiate heat. As shown in Fig. 2, a circular metal plate 11 has an annular insulating coating 12 to which the resistance material is applied. The margin of the plate is free from insulating material and rests against the annular margin of a metal cap 17, the edge 15 of which is bent over to make good thermal contact with the plate 11. Springs 20 contact with the ends of the resistance layer, and are connected to terminals on the cap. A spring slider arm 19 is carried by the operating spindle 18, to which is also fastened one end of a flat spring 23 by which connection is made to a third terminal on the cap. The spindle 18 passes through a bush 29, which is insulated from the plate 11. The slider arm 19 is split as shown in Fig. 4 and has additional springs 24 of C form fastened at alternate ends at the end 2 of the arm. The total width of these springs is less than that of the resistance layer, with which they make contact at their middle.
GB492531A 1930-03-24 1931-02-16 Improvements in variable electrical resistances Expired GB372433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE587880T 1930-03-24

Publications (1)

Publication Number Publication Date
GB372433A true GB372433A (en) 1932-05-12

Family

ID=6572286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB492531A Expired GB372433A (en) 1930-03-24 1931-02-16 Improvements in variable electrical resistances

Country Status (4)

Country Link
DE (1) DE587880C (en)
FR (1) FR713676A (en)
GB (1) GB372433A (en)
NL (1) NL31054C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328707A (en) * 1965-06-01 1967-06-27 Markite Corp Wiper assembly for potentiometers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328707A (en) * 1965-06-01 1967-06-27 Markite Corp Wiper assembly for potentiometers

Also Published As

Publication number Publication date
DE587880C (en) 1933-11-11
NL31054C (en)
FR713676A (en) 1931-10-31

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