GB581923A - Improvements in magnetic tachometers - Google Patents

Improvements in magnetic tachometers

Info

Publication number
GB581923A
GB581923A GB11657/41A GB1165741A GB581923A GB 581923 A GB581923 A GB 581923A GB 11657/41 A GB11657/41 A GB 11657/41A GB 1165741 A GB1165741 A GB 1165741A GB 581923 A GB581923 A GB 581923A
Authority
GB
United Kingdom
Prior art keywords
magnet
bell
wheel
magnetic
drives
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
GB11657/41A
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.)
ED Jaeger SA
Original Assignee
ED Jaeger SA
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 ED Jaeger SA filed Critical ED Jaeger SA
Publication of GB581923A publication Critical patent/GB581923A/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
    • G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
    • G01P3/495—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field
    • G01P3/4953—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field with a counter for the covered distance incorporated

Abstract

581,923. Magnetic speedometers. ETABLISSEMENTS E. JAEGER. Sept. 11, 1941, No. 11657. Convention date, Oct. 29, 1940. [Class 106 (iii)] The metallic bell 3 of a magnetic speedometer is movable in the air gap between a fixed framework and a rotatable magnet 9, the axes of rotation of the bell and the magnet being at right angles. The magnet 9 is driven by a pulley mounted on the shaft 8. The index 1; solid with the bell 3, is urged towards zero by a spring 7. A pinion 12, Fig. 5, solid with the magnet 9, drives a gear carrying an eccentrically mounted pawl 16 which drives a ratchet wheel 17 secured to the first wheel of a distance indicator, a spring-pressed pawl 19 holding the wheel 17 against reverse movement.
GB11657/41A 1940-10-29 1941-09-11 Improvements in magnetic tachometers Expired GB581923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR581923X 1940-10-29

Publications (1)

Publication Number Publication Date
GB581923A true GB581923A (en) 1946-10-30

Family

ID=8957698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11657/41A Expired GB581923A (en) 1940-10-29 1941-09-11 Improvements in magnetic tachometers

Country Status (1)

Country Link
GB (1) GB581923A (en)

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