Power steering system for heavy load dollies

Details Power steering system for heavy load dollies Power steering system for heavy load dollies

1976-05-14

1977-08-30

Peters, Jr., Joseph F.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

280 815, B62D 506

Patent

active

040448541

ABSTRACT:
A multiple dolly system for transporting large loads in which individual dollies are simultaneously power-steered through a fluid linkage steering control. Castered wheels of the dollies are steered by fluid power actuators having appropriate ones of their working chambers connected in parallel circuit arrangements, wherein ground reaction forces on the castered steerable wheels are equalized by the tendency of the parallel fluid circuits and actuator chambers to reach a balanced minimum pressure, and whereby the wheels, seeking a path of least resistance, are self-synchronizing in their steering displacements.

REFERENCES:
patent: 2761693 (1956-09-01), Stover
patent: 2818275 (1957-12-01), Hollowell

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