GB177911A - Improvements in and relating to indicating instruments - Google Patents

Improvements in and relating to indicating instruments

Info

Publication number
GB177911A
GB177911A GB312021A GB312021A GB177911A GB 177911 A GB177911 A GB 177911A GB 312021 A GB312021 A GB 312021A GB 312021 A GB312021 A GB 312021A GB 177911 A GB177911 A GB 177911A
Authority
GB
United Kingdom
Prior art keywords
spring
pivoted
pointer
apertures
adjustment
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
GB312021A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB312021A priority Critical patent/GB177911A/en
Publication of GB177911A publication Critical patent/GB177911A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/16—Elements for restraining, or preventing the movement of, parts, e.g. for zeroising
    • G01D11/18—Springs
    • 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
    • G01R1/02—General constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

177,911. British Thomson-Houston Co., Ltd., (General Electric Co.). Jan. 25, 1921. Manual adjustment of zero; modifying scale of readings.-In an instrument having a flat spiral control spring for the movable or terminal element the outer end of the spring is threaded through apertures in an angularly adjustable member for the purpose of adjusting the initial torque of the spring and the zero position of the pointer. In the instrument shown, the movable element 15 which is pivoted in a screw 17 in a stationary member 18 carries a pointer 16 and has attached to it one end of a phospher-bronze or steel spring 21 the other end of which is threaded through apertures in the bent portion 23 of a pivoted member 22 and through which it can be pulled for adjustment. The member 22 is pivoted on a bush 30 concentrically with the element 15 and has a slot 29 in which works a crank-pin 24 on a disc 25 rotatable by means of a screw-headed rod 26 to effect a fine adjustment of the member 22. The rod 26 frictionally engages the cover plate 13 by means of a washer 27 and spring 28.
GB312021A 1921-01-25 1921-01-25 Improvements in and relating to indicating instruments Expired GB177911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB312021A GB177911A (en) 1921-01-25 1921-01-25 Improvements in and relating to indicating instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB312021A GB177911A (en) 1921-01-25 1921-01-25 Improvements in and relating to indicating instruments

Publications (1)

Publication Number Publication Date
GB177911A true GB177911A (en) 1922-04-13

Family

ID=9752290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB312021A Expired GB177911A (en) 1921-01-25 1921-01-25 Improvements in and relating to indicating instruments

Country Status (1)

Country Link
GB (1) GB177911A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0135918A1 (en) * 1983-09-23 1985-04-03 Itt Industries, Inc. Measuring instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0135918A1 (en) * 1983-09-23 1985-04-03 Itt Industries, Inc. Measuring instrument

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