GB509223A - Improvements in or relating to tachometers - Google Patents

Improvements in or relating to tachometers

Info

Publication number
GB509223A
GB509223A GB32826/38A GB3282638A GB509223A GB 509223 A GB509223 A GB 509223A GB 32826/38 A GB32826/38 A GB 32826/38A GB 3282638 A GB3282638 A GB 3282638A GB 509223 A GB509223 A GB 509223A
Authority
GB
United Kingdom
Prior art keywords
motor
pointer
support
dial
speed
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
GB32826/38A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB509223A publication Critical patent/GB509223A/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
    • G01P1/00—Details of instruments
    • G01P1/04—Special adaptations of driving means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instrument Panels (AREA)

Abstract

509,223. Speedometers. KOLLSMAN, P. Dec. 31, 1937, No. 32826/38. Convention date, March 22, 1937. Divided out of 508,506, [Group XXXV], and 508,507. [Class 106 (iii)] In an installation comprising an electrical generator driven by a prime mover, a motor and an indicating system, the latter comprises a speed indicator formed of an instrument casing 202 containing a support 206 for the more delicate speedometer parts and a fixed dial 217, a pointer 20P<1> being provided on one side of the support and dial which is electromagnetically coupled to the shaft 201 of the motor so that the deflection of the pointer may indicate the speed of the motor. The eddy current electromagnetic coupling 242 is the same as that described in Specification 508,507. Specification 508,534, [Group XXXVIII], also is referred to.
GB32826/38A 1937-03-22 1937-12-31 Improvements in or relating to tachometers Expired GB509223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US509223XA 1937-03-22 1937-03-22

Publications (1)

Publication Number Publication Date
GB509223A true GB509223A (en) 1939-06-30

Family

ID=21968338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32826/38A Expired GB509223A (en) 1937-03-22 1937-12-31 Improvements in or relating to tachometers

Country Status (1)

Country Link
GB (1) GB509223A (en)

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