Traversing hoists – Overhead – Cable
Patent
1977-04-21
1978-04-11
Oresky, Lawrence J.
Traversing hoists
Overhead
Cable
212 49, 214 1PA, 214142, B66C 2300
Patent
active
040834590
ABSTRACT:
A crawler vehicle has a main frame and first and second track assemblies disposed at opposite sides of the main frame. Each of the track assemblies has a roller frame. A mounting apparatus is provided for fastening a counterweight assembly to the vehicle on the outboard side of the first track assembly. The mounting apparatus includes a first pair of brackets secured to the main frame adjacent the first track assembly and a second pair of brackets secured to the outboard side of the roller frame of the first track assembly. A frame assembly has first and second arms with the first arm being positioned generally vertically between the main frame and the first track assembly and the second arm projecting laterally outwardly relative to the first arm and over the first track assembly. A first pin connects the first arm of the frame assembly to the first pair of brackets. A second pin detachably fastens the lower end of a counterweight mounting frame to the second pair of brackets. A third pin detachably fastens the upper end portion of the mounting frame to the second arm of the frame assembly. The counterweight assembly is attached to the mounting frame for swinging movement in the substantially horizontal pathway between a retracted position at which a first portion of the counterweight is disposed above the forward end of the first track assembly and an extended position at which at least a greater portion of the counterweight is positioned outwardly from the extremity of the first track assembly.
REFERENCES:
patent: 1985285 (1934-12-01), Erdahl
patent: 2722320 (1955-11-01), Dobeus et al.
patent: 3236391 (1966-02-01), Kennedy
patent: 3378148 (1968-04-01), Stanley
patent: 3785503 (1974-01-01), Butterfield et al.
Caterpillar Tractor Co.
Grant John W.
Oresky Lawrence J.
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