Adjustable-length semitrailer chassis and method of semitrailer

Details Adjustable-length semitrailer chassis and method of semitrailer Adjustable-length semitrailer chassis and method of semitrailer

1975-03-28

1977-07-05

Makay, Albert J.

Land vehicles: dumping

Tilting

Operating mechanism

280 80B, 280656, B60P 118

Patent

active

040336255

ABSTRACT:
The frame of the chassis includes pairs of beams projectable forwardly and rearwardly, respectively from a center frame section on which a load-carrying body is mounted. The forward beam pair and the rear beam pair are projected from the center section corresponding distances by hydraulic jacks connected respectively between such beam pairs and the central section. The jacks are connected to transfer fluid between them, and fluid under pressure is supplied to the jacks to extend one jack and to contract the other jack simultaneously.

REFERENCES:
patent: 2461577 (1949-02-01), Stark
patent: 2996206 (1961-08-01), McKee
patent: 3722948 (1973-03-01), Walsh
patent: 3838885 (1974-10-01), Brennan
patent: 3847405 (1974-11-01), Pearce
patent: 3895818 (1975-07-01), Fearon

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