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GB1252598A - - Google Patents

Info

Publication number
GB1252598A
GB1252598A GB1252598DA GB1252598A GB 1252598 A GB1252598 A GB 1252598A GB 1252598D A GB1252598D A GB 1252598DA GB 1252598 A GB1252598 A GB 1252598A
Authority
GB
United Kingdom
Prior art keywords
resistors
ohm
unit
values
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
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 filed Critical
Publication of GB1252598A publication Critical patent/GB1252598A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Adjustable Resistors (AREA)
  • Details Of Resistors (AREA)

Abstract

1,252,598. Resistance networks. VISHAY INTERTECHNOLOGY Inc. 13 Dec., 1968 [1 July, 1968], No. 59555/68. Heading H3U. [Also in Division H1] A resistance box comprises a plurality of units each consisting of a group of resistors, selected resistors of a group being electrically connectible in series with one or more of the resistors of the other units and a rotatable switch member for each unit for selecting the resistors, the number of resistors in each unit being less than the number of resistance values in each unit, and the total resistance value being directly readable from indicating means on the switches. Preferably each resistor comprises a metal film having elastic properties which obey Hooke's law in tension and compression, attached to a rigid dielectric substrate located within a hermetically sealed housing. As shown, five ten-position switches provide readings at 1 ohm intervals up to 99,999 ohms. Each unit may contain four resistors, e.g. combinations of a 1 ohm, 2 ohm and two 3 ohm resistors provide all the values from 1 to 9 ohms. For providing values between 0 and 1 ohm a slide wire rheostat is connected in series (Fig. 2, not shown) consisting of two parallel wires mounted on a drum and interconnected at one end. Movement of a vernier dial varies the length of the wires in relation to a pair of pressure contacts.
GB1252598D 1968-07-01 1968-12-13 Expired GB1252598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74141068A 1968-07-01 1968-07-01

Publications (1)

Publication Number Publication Date
GB1252598A true GB1252598A (en) 1971-11-10

Family

ID=24980624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252598D Expired GB1252598A (en) 1968-07-01 1968-12-13

Country Status (4)

Country Link
US (1) US3571778A (en)
DE (1) DE1900424A1 (en)
FR (1) FR1594339A (en)
GB (1) GB1252598A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534093A1 (en) * 1975-07-30 1977-04-21 Konus Kessel Waermetech DEVICE FOR HEATING A HEAT TRANSFER LIQUID TO BE PROTECTED AGAINST OVERHEATING
DE29605742U1 (en) * 1996-03-28 1997-07-24 Hewi Heinrich Wilke Gmbh, 34454 Arolsen Device for attaching objects to wooden wall parts or the like.
TWI455172B (en) * 2010-12-30 2014-10-01 Semes Co Ltd Adjustable capacitor, plasma impedance matching device, plasma impedance mathching method, and substrate treating apparatus
CN114200373B (en) * 2021-12-09 2022-12-09 中国科学院上海微系统与信息技术研究所 Small quantum resistance standard

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US330244A (en) * 1885-11-10 lanqe
GB517541A (en) * 1938-07-28 1940-02-01 British Sangamo Co Ltd Improvements in or relating to electrical resistances
US2286029A (en) * 1941-06-09 1942-06-09 Measurements Corp High frequency resistance device
US2498967A (en) * 1949-12-10 1950-02-28 Norden Lab Corp Potentiometer
US2625632A (en) * 1950-08-21 1953-01-13 Bendix Aviat Corp Control apparatus
US2678985A (en) * 1951-11-15 1954-05-18 Daven Company Electrical devices such as attenuators, potentiometers, rheostats, etc.
US2786122A (en) * 1954-07-29 1957-03-19 Electro Measurements Inc Resistance unit
US2886677A (en) * 1955-11-10 1959-05-12 Marlan E Bourns Digital readout device
US3017565A (en) * 1960-09-12 1962-01-16 Robert L Carson Temperature responsive resistor
US3215790A (en) * 1962-11-07 1965-11-02 Rca Corp Switch for providing a positional binary number code
US3474375A (en) * 1968-07-01 1969-10-21 Vishay Intertechnology Inc Precision resistor

Also Published As

Publication number Publication date
FR1594339A (en) 1970-06-01
US3571778A (en) 1971-03-23
DE1900424A1 (en) 1970-01-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee