GB237719A - Improvements in and relating to electric tachometers - Google Patents

Improvements in and relating to electric tachometers

Info

Publication number
GB237719A
GB237719A GB1706724A GB1706724A GB237719A GB 237719 A GB237719 A GB 237719A GB 1706724 A GB1706724 A GB 1706724A GB 1706724 A GB1706724 A GB 1706724A GB 237719 A GB237719 A GB 237719A
Authority
GB
United Kingdom
Prior art keywords
relating
multiplier
scale
indicating instrument
casing
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
GB1706724A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1706724A priority Critical patent/GB237719A/en
Publication of GB237719A publication Critical patent/GB237719A/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
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
    • G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Measuring Devices (AREA)

Abstract

237,719. British Thomson-Houston Co., Ltd., Young, A. P., and Hutt, J. July 16, 1924. Electric speed indicators.-A hand tachometer comprises a permanent magnet generator 1, an indicating instrument, and a multiplier for modifying the scale of readings all combined in a single casing 3. The indicating instrument housed in the end 4 consists of a long-scale voltmeter, and the multiplier comprise a resistance with means for cutting out sections. The casing may be made of moulded compound or of light metal.
GB1706724A 1924-07-16 1924-07-16 Improvements in and relating to electric tachometers Expired GB237719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1706724A GB237719A (en) 1924-07-16 1924-07-16 Improvements in and relating to electric tachometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1706724A GB237719A (en) 1924-07-16 1924-07-16 Improvements in and relating to electric tachometers

Publications (1)

Publication Number Publication Date
GB237719A true GB237719A (en) 1925-08-06

Family

ID=10088659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1706724A Expired GB237719A (en) 1924-07-16 1924-07-16 Improvements in and relating to electric tachometers

Country Status (1)

Country Link
GB (1) GB237719A (en)

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