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GB647552A - Improvements relating to speed indicating devices - Google Patents

Improvements relating to speed indicating devices

Info

Publication number
GB647552A
GB647552A GB292648A GB292648A GB647552A GB 647552 A GB647552 A GB 647552A GB 292648 A GB292648 A GB 292648A GB 292648 A GB292648 A GB 292648A GB 647552 A GB647552 A GB 647552A
Authority
GB
United Kingdom
Prior art keywords
turntable
improvements relating
speed indicating
tall
record post
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
GB292648A
Inventor
Sydney James White
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB292648A priority Critical patent/GB647552A/en
Publication of GB647552A publication Critical patent/GB647552A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/02—Devices characterised by the use of mechanical means
    • G01P3/16—Devices characterised by the use of mechanical means by using centrifugal forces of solid masses
    • G01P3/18—Devices characterised by the use of mechanical means by using centrifugal forces of solid masses transferred to the indicator by mechanical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

647,552. Speedometers. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 31,1948, No. 2926. [Class 106 (iii)] A gramophone turntable speed indicating . device of the type adapted to be placed over the record post to rotate with the turntable and comprising an indicator lever pivotally mounted about a horizontal axis and changing position in dependence upon the angular speed of the turntable, is formed so that when placed over a tall record post the latter can project through and above the device. The indicating portion 11 of the lever 8 which, at the correct angular speed, should be level with the annular raised portion 13 of the device, comprises an apertured disc through which the tall record post 16 projects.
GB292648A 1948-01-31 1948-01-31 Improvements relating to speed indicating devices Expired GB647552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB292648A GB647552A (en) 1948-01-31 1948-01-31 Improvements relating to speed indicating devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB292648A GB647552A (en) 1948-01-31 1948-01-31 Improvements relating to speed indicating devices

Publications (1)

Publication Number Publication Date
GB647552A true GB647552A (en) 1950-12-13

Family

ID=9748654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB292648A Expired GB647552A (en) 1948-01-31 1948-01-31 Improvements relating to speed indicating devices

Country Status (1)

Country Link
GB (1) GB647552A (en)

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