Trolley rotation stabilizing device

Details Trolley rotation stabilizing device Trolley rotation stabilizing device

1979-04-25

1981-10-06

Silverstrim, John P.

Railways

Traction

Chain

105156, B61B 300, B61B 1312, B61C 1304, B61F 500

Patent

active

042928974

ABSTRACT:
A device for preventing turn-around motions of free trolleys in a power-and-free conveyor having a power rail and a free rail is provided. The device includes a connecting link interconnecting the free trolleys and having holes as well as turn-preventing members on the opposite ends thereof. Each of the trolleys is provided with a downwardly directed rod from the trolley, the rod rotatably passing through a hole of the connecting link and having a stopper at its lower end. The stoppers receive the connecting link when the free trolleys are on the free rail. Each of the turn-preventing members has an engaging portion which extends upward. Each of the engaging portions engages with the lower portion of a free trolley when the free trolley is taken off from the free rail. Thus, the turn-around motions of the free trolleys are prevented and the free trolleys are in the position where their directions are the same as that in which the connecting link extends.

REFERENCES:
patent: 924154 (1909-06-01), Ferris
patent: 2512034 (1950-06-01), Moore
patent: 3411457 (1968-11-01), Gutsch, Jr.

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