GB479045A - Improvements relating to variable resistances or potentiometers - Google Patents

Improvements relating to variable resistances or potentiometers

Info

Publication number
GB479045A
GB479045A GB21036/36A GB2103636A GB479045A GB 479045 A GB479045 A GB 479045A GB 21036/36 A GB21036/36 A GB 21036/36A GB 2103636 A GB2103636 A GB 2103636A GB 479045 A GB479045 A GB 479045A
Authority
GB
United Kingdom
Prior art keywords
resistance
contact
layer
resistor
july
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
GB21036/36A
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 GB479045A publication Critical patent/GB479045A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
    • H01C17/235—Initial adjustment of potentiometer parts for calibration

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustable Resistors (AREA)

Abstract

479,045. Variable resistances. STEATITMAGNESIA AKT.-GES. July 29, 1936, Nos. 21036 and 21037. Convention dates, July 29, 1935 and Aug. 1, 1935. [Class 37] On the reverse side of the base-plate carrying the variable resistor there is provided a series resistance in curved or zigzag form and consisting of finely divided material suspended in a binder which can be hardened, this resistance being fixed in value for the purpose of giving well-defined initial and final values to the total resistance. The main resistance track b is secured by rivets c and one end is provided with a layer i of precious metal burnt or sprayed thereon. The series resistance g may be extended by a pin h joining it with the terminal connector e<2>. The slide on the main resistor b is provided with a contact track d. Fig. 3 shows stop mechanism which is metallic, the contact part r being insulated at q from the stop arm o which engages the fixed stop l, preferably over a surface contact. Fig. 6 shows a form of contact l<1> adjustable in lugs t struck up from the base-plate. The Specification as open to inspection under Sect. 91 comprises also a resistor, Fig. 7 (Cancelled), having a high-resistance layer v and a layer w having a relatively low ohmic value, the boundary between the two layers being shaped as shown to produce a smoother variation of resistance. More than two layers may be provided. This subject-matter does not appear in the Specification as accepted.
GB21036/36A 1935-07-29 1936-07-29 Improvements relating to variable resistances or potentiometers Expired GB479045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE479045X 1935-07-29

Publications (1)

Publication Number Publication Date
GB479045A true GB479045A (en) 1938-01-31

Family

ID=6542351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21036/36A Expired GB479045A (en) 1935-07-29 1936-07-29 Improvements relating to variable resistances or potentiometers

Country Status (1)

Country Link
GB (1) GB479045A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796501A (en) * 1954-01-11 1957-06-18 Chicago Telephone Supply Corp Variable resistor with high torque adjustment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796501A (en) * 1954-01-11 1957-06-18 Chicago Telephone Supply Corp Variable resistor with high torque adjustment

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