GB847919A - An improved precision potentiometer - Google Patents

An improved precision potentiometer

Info

Publication number
GB847919A
GB847919A GB2531257A GB2531257A GB847919A GB 847919 A GB847919 A GB 847919A GB 2531257 A GB2531257 A GB 2531257A GB 2531257 A GB2531257 A GB 2531257A GB 847919 A GB847919 A GB 847919A
Authority
GB
United Kingdom
Prior art keywords
wiper
wire
potentiometer
bracket
single complete
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
GB2531257A
Inventor
John Moorhouse Chilton
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.)
AVERY S Ltd
Original Assignee
AVERY S 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
Priority to BE570183D priority Critical patent/BE570183A/xx
Application filed by AVERY S Ltd filed Critical AVERY S Ltd
Priority to GB2531257A priority patent/GB847919A/en
Priority to DEA30038A priority patent/DE1119385B/en
Publication of GB847919A publication Critical patent/GB847919A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)

Abstract

847,919. Electric resistances. AVERYS Ltd., [formerly AVERY Ltd., W. & T.]. 1. Aug. 5, 1958 [Aug. 10, 1957], No. 25312/57. Class 37 A rotary type potentiometer is characterized in that the resistance element takes the form of a single complete helical turn of resistance wire mounted on a former and engaged by the spring biased contact finger of the wiper. The circumferential edge of an insulated annular former 12 is provided with a helical groove extending over a single complete turn plus two overlapping sections, and into which a resistance wire 14 of a precious metal alloy e.g. silver/palladium alloy is wound. The outer segments of the overlapping sections of the wire V are removed so that the wiper 28 does not short across the resistance wire, and a cam shoulder 29 is provided to lift the wiper 28 clear of the gap G. The wiper is carried on a metal torsion ribbon 27 mounted on a bracket 24 attached to the block 18 by screws 25. The holes 26 for these screws are slotted to allow radial adjustment of the bracket, and to facilitate the adjustment a screw 25a is provided with an eccentric head located in a slot 26a so that rotation of the screwhead displaces the bracket radially. The block 18 is attached to the drive spindle mounted in antifriction bearings and may be rotated through a full 360 degrees. An electrical connection to the wiper is made by a light brush in the form of a resilient gold alloy wire 20 which engages with a metal collector ring 19 electrically connected through a plate and a wire to bracket 24. According to the Provisional Specification the potentiometer has a single complete turn wound about, but insulated from, a metal drum, with the ends of the wire held in contact blocks located one behind the other in the same axial plane of the potentiometer body.. The wiper arm is carried on a spindle couple to the weighing machine of which the potentiometer forms part, and is not supported in bearings in the potentiometer body. Specification 847,917 is referred to.
GB2531257A 1957-08-10 1957-08-10 An improved precision potentiometer Expired GB847919A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE570183D BE570183A (en) 1957-08-10
GB2531257A GB847919A (en) 1957-08-10 1957-08-10 An improved precision potentiometer
DEA30038A DE1119385B (en) 1957-08-10 1958-08-06 Rotary potentiometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2531257A GB847919A (en) 1957-08-10 1957-08-10 An improved precision potentiometer

Publications (1)

Publication Number Publication Date
GB847919A true GB847919A (en) 1960-09-14

Family

ID=10225672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2531257A Expired GB847919A (en) 1957-08-10 1957-08-10 An improved precision potentiometer

Country Status (3)

Country Link
BE (1) BE570183A (en)
DE (1) DE1119385B (en)
GB (1) GB847919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134084A (en) * 1962-08-16 1964-05-19 Morris A Shriro Ultra-high-temperature potentiometer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1579215A (en) * 1922-03-03 1926-04-06 Klosner Morris Rheostat
DE842965C (en) * 1950-04-21 1952-07-03 Siemens Ag Wire resistor, preferably a potentiometer resistor, with a wire coil on the circumference of a circular disk
US2676227A (en) * 1952-04-25 1954-04-20 Fox Paul Xavier Variable electrical resistance and potentiometer
US2798137A (en) * 1953-08-31 1957-07-02 Beckman Instruments Inc Potentiometer and contact therefor
DE957281C (en) * 1953-10-30 1957-01-31 Siemens Ag Resistance transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134084A (en) * 1962-08-16 1964-05-19 Morris A Shriro Ultra-high-temperature potentiometer

Also Published As

Publication number Publication date
BE570183A (en)
DE1119385B (en) 1961-12-14

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