Power-and-free trolley conveyor

Details Power-and-free trolley conveyor Power-and-free trolley conveyor

1981-11-17

1984-07-31

Beltran, Howard

Railways

Traction

Chain

104 89, 104133, 105148, 134 45, 198473, B61B 502, B61B 1002, B61D 4900

Patent

active

044623151

ABSTRACT:
A power-and-free trolley conveyor comprising a power line rail, a free line rail disposed immediately below the power line rail, another free line rail provided at one side of the free line rail in parallel thereto, and carriers suspended from the free line rails and each thereby supported at its opposite sides.

REFERENCES:
patent: 2634851 (1953-04-01), Steinhoff
patent: 3033345 (1962-05-01), Prymek
patent: 3342165 (1967-09-01), Szymanski
patent: 3382992 (1968-05-01), Couchman
patent: 3426700 (1969-02-01), Klamp
patent: 3690268 (1972-09-01), Goldstein
patent: 3820466 (1974-06-01), Allen
patent: 3926125 (1975-12-01), Orwin
patent: 4073236 (1978-02-01), Harrington
patent: 4144817 (1979-03-01), Morita

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