Steering and width controls for expandable tandem rollers

Details Steering and width controls for expandable tandem rollers Steering and width controls for expandable tandem rollers

1977-02-24

1978-08-29

Pekar, John A.

Motor vehicles

With rollers

180140, 404126, B62D 5700

Patent

active

041097424

ABSTRACT:
An hydraulic system controlling the steering and width of an articulated expandable tandem roller turns both rolls at the same time in opposite directions when the machine is being steered or in the same direction when being expanded or contracted. An operator controlled electrical system, also governing travel of the machine in either opposite direction, controls steering and width adjustment and automatically reverses the "hand" of the steering when the direction of travel of the machine is reversed.

REFERENCES:
patent: 2748509 (1956-06-01), Brown et al.
patent: 3185245 (1965-05-01), Hoyt
patent: 3279637 (1966-10-01), Olson et al.
patent: 3868194 (1975-02-01), Ferguson

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