Apparatus for improving the accuracy of a friction wheel distanc

Details Apparatus for improving the accuracy of a friction wheel distanc Apparatus for improving the accuracy of a friction wheel distanc

1975-12-08

1977-05-31

Aegerter, Richard F.

Geometrical instruments

Area integrators

Electrical

33137L, 74 29, G01B 312

Patent

active

040260291

ABSTRACT:
A flat strip of metal forms the surface on which the friction wheel of a distance measuring device travels. The angle of the strip relative to the path of movement of the friction wheel is made adjustable. By making the perimeter surface of the friction wheel with striations extending along a skewed angle relative to the axis of rotation and forming the imprint of the friction wheel along the strip by rolling the wheel along the length of the strip. Subsequent slight changes in the angle of the strip relative to the path of movement of the wheel; causes the reading of the distance measuring device to change slightly for a given amount of movement of the device along its path to travel.

REFERENCES:
patent: 962776 (1910-06-01), Maranda
patent: 1598871 (1926-09-01), Otto
patent: 2064653 (1936-12-01), Forstrom
patent: 3370478 (1968-02-01), Martin
patent: 3771228 (1973-11-01), Culver
patent: 3854823 (1974-12-01), Loxham

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