Extendable crane trolley and method

Details Extendable crane trolley and method Extendable crane trolley and method

1980-09-26

1982-11-23

Sheridan, Robert G.

Material or article handling

Chamber of a type utilized for a heating function and...

Charging of chamber

212210, 212221, 212270, 414207, 414786, B66C 1708

Patent

active

043603041

ABSTRACT:
A horizontally extendable trolley 22 comprising a trolley frame 51 and wheels 52 for supporting trolley frame 51, and a horizontally elongated trailer frame 54 slidably mounted on frame 51, said trailer frame 54 having a first end extending beyond an end of frame 51, and auxiliary wheels 56 for supporting said first end. Trolley 22 includes: means for horizontally extending trailer frame 54 outwardly from the trolley frame 51 and retracting trailer frame 54 inwardly toward trolley frame 51; hoisting means mounted on trolley frame 51; auxiliary hoisting means mounted on trailer frame 54; and means for driving wheels 52. Crane 10 for use with trolley 22 and methods for the use of cranes employing trolley 22 in steel making operations are disclosed.

REFERENCES:
patent: 3009583 (1961-11-01), Pierson
patent: 3297170 (1967-01-01), McCready
patent: 3458229 (1969-07-01), Nagy et al.
patent: 3727778 (1973-04-01), Hollenbach
patent: 3784028 (1974-01-01), Stewart
patent: 3854592 (1974-12-01), Mordre
patent: 3895818 (1975-07-01), Fearon

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