Rotation displaying device

Details Rotation displaying device Rotation displaying device

1977-04-18

1979-01-23

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Illuminated reading device

73535, G01P 318

Patent

active

041354052

ABSTRACT:
A rotation displaying device for displaying the rotating speed of an engine, especially, that of an agricultural machine such as a combine harvester, in colors classified by the low speed, standard speed and high speed. The device comprises a rotary shaft rotating at a speed proportional to the rotating speed of the engine, and a color pattern plate urged in one direction by the centrifugal force produced by the rotation of the rotary shaft. The color pattern plate is provided on its surface with a pattern of three different colors, and the color pattern changing with the successive displacement of the color pattern plate is viewed through a single central displaying opening of a display plate to display the low speed, standard speed and high speed of the engine.

REFERENCES:
patent: 620723 (1899-03-01), Sharples
patent: 2698215 (1954-12-01), Peck
patent: 2941049 (1960-06-01), Begian

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