Tensioning and safety apparatus for conveyor chain of row-crop h

Details Tensioning and safety apparatus for conveyor chain of row-crop h Tensioning and safety apparatus for conveyor chain of row-crop h

1978-06-06

1980-04-29

Kinsey, Russell R.

Harvesters

Cornstalk type

Cutters

56 102, 56DIG15, A01D 4502

Patent

active

041999240

ABSTRACT:
A row-crop harvester has a frame displaceable along the ground and formed with a plurality of forwardly opening throats at each of which is provided an endless conveyor chain spanned over a drive sprocket and an idler sprocket. A fluid cylinder mounted on the frame is provided for each of the idler sprockets so that when this cylinder is pressurized it can urge the respective idler sprocket away from the respective drive sprocket and tension the respective conveyor chain. A pressure-responsive switch is connected to each of the fluid cylinders and to a magnetic clutch between the drive for the chopper and drive sprockets for the harvester. When the pressure drops suddenly in any of the cylinders, as happens when a chain breaks, his pressure-responsive switch will respond and open the clutch to shut down the harvester.

REFERENCES:
patent: 1607120 (1926-11-01), Dobler
patent: 1929852 (1933-10-01), Reid
patent: 3103777 (1963-09-01), Harbage
patent: 3568420 (1971-03-01), Hofer et al.
patent: 3599403 (1971-08-01), Gantz
patent: 3647270 (1972-03-01), Althaus
patent: 3721301 (1973-03-01), Weasel, Jr.
patent: 3940913 (1976-03-01), Wallen
patent: 4007826 (1977-02-01), Brown, Jr. et al.

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