Seed metering shaft rotation indicator

Details Seed metering shaft rotation indicator Seed metering shaft rotation indicator

1988-09-09

1990-01-09

Johnson, Richard J.

Earth working

With indicating or sighting means

111903, 116 28R, 116175, 74569, A01C 700

Patent

active

048921572

ABSTRACT:
An indicator is provided for indicating rotation of a seed metering shaft used with a grain drill. The present invention incorporates a cylinder mounted to the seed metering shaft with its longitudinal axis offset but parallel to the axis of the shaft. The cylinder is mounted to rotate with the shaft. An indicator arm is hingedly mounted to the frame of the grain drill with one end positioned to ride on the outer surface of the cylinder and the other end free to move in correspondence with movement of the first end. With this invention, the indicator arm moves continually with movement of the seed metering shaft and thus provides a continuous indication of rotation of the seed metering shaft.

REFERENCES:
patent: 650480 (1900-05-01), Place
patent: 1257865 (1918-02-01), Holmes
patent: 2022354 (1935-11-01), Kirk
patent: 3099243 (1963-07-01), Schwartz
patent: 3155058 (1964-11-01), Valdi
patent: 3331532 (1967-07-01), Hori
patent: 3355102 (1967-11-01), Gregory, Jr.
patent: 3385242 (1968-05-01), Chancellor
patent: 3873086 (1975-03-01), Lee
patent: 3921159 (1975-11-01), Steffen
patent: 4164669 (1979-08-01), Knepler

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