Traversing hoists – Overhead – Cable
Patent
1974-11-18
1976-05-11
Spar, Robert J.
Traversing hoists
Overhead
Cable
212145, 214138, 280765, 24208A, B66S 900, B66C 2362, B60S 900
Patent
active
039556956
ABSTRACT:
In heavy mobile construction machinery such as backhoes, power shovels and boom cranes, wherein outriggers are extended for lateral stabilization, a latching mechanism is provided to restrain an outrigger in its retracted inoperative position when not in use. The mechanism is operable in response to simple hydraulic actuation of the outrigger, and does not require manual operation or remote controls to effect locking or release of the mechanism.
REFERENCES:
patent: 752731 (1904-02-01), Wallace
patent: 1193052 (1916-08-01), Pirsch
patent: 3213507 (1965-10-01), Christian et al.
patent: 3365214 (1968-01-01), Gainett
J. I. Case Company
Johnson R. B.
Spar Robert J.
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