Macdon Industries Ltd

Bell, Andrew William Dean

Enns, John Edward

Patterson, Roger L.

Andrew William Dean Bell

John Edward Enns

Roger L Patterson

A header assembly for a combine harvester includes a header carried by an adapter on the feeder house of the combine controlling an angle of the header defined by a tilt cylinder and height of the header at the feeder house. Wings of the header are carried on gauge wheels the height of which relative to the header frame can be adjusted by cylinders. A driver interface inside the cab includes inputs to be set by the driver of cutter bar height and header angle. These are converted by the controller program into inputs for the tilt cylinder and the gauge wheel cylinders.

Controlling cutting height and angle of a combine header

A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel. There is provided a float module with adjustable and calibrated springs on the header which allows the header to float relative to the lift system on the tractor. The float force is adjusted by raising and lowering the lift system in dependence on an angle measurement of the lift position. The lift system includes a lift cylinder and tilt cylinder controlled to change cutter angle while maintaining a sight line to the cutter bar for the operator.

Crop harvesting machine with calibration of the header float springs

A swather tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel. There is provided a float module with adjustable and calibrated springs connected between a mounting assembly on the tractor and pivotal support arms of the float assembly where the mounting assembly can be raised and lowered by a lift system on the tractor. This allows the header to float relative to the lift system on the tractor. The float force of the springs is adjusted by raising and lowering the lift system in dependence on an angle measurement of the lift position of the header as it floats relative to the mounting assembly.

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Winnipeg, Canada

Andrew William Dean Bell