Track laying tractor with movable boom which can be tilted later

Details Track laying tractor with movable boom which can be tilted later Track laying tractor with movable boom which can be tilted later

1976-01-09

1977-08-16

Makay, Albert J.

Traversing hoists

With haul-in line

214 1PA, 212 8R, 212 8B, B66C 2372

Patent

active

040421163

ABSTRACT:
A track laying tractor comprising a tractor body having a framework supported laterally by a pair of track units, a crane placed upon one of the sides of the tractor body and having a movable boom which can be tilted laterally and pivoted at the base on an appendage fixed to the outer face of the adjacent track unit. A counterweight for balancing the load is placed on the side of the tractor body opposite to the crane. An additional framework supports a mechanical linkage system for varying the lateral tilt of the crane, for adjusting the position of the counterweight and for lifting the load.

REFERENCES:
patent: 1740663 (1929-12-01), McManis
patent: 1931221 (1933-10-01), Cummings et al.
patent: 2722320 (1955-11-01), Dobeus et al.
patent: 3058600 (1962-10-01), Leak et al.
patent: 3266636 (1966-08-01), Dorn
patent: 3426915 (1969-02-01), Tesch
patent: 3945518 (1976-03-01), Inoue

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