Traversing hoists – Overhead – Cable
Patent
1975-12-22
1976-11-16
Paperner, L. J.
Traversing hoists
Overhead
Cable
212 49, 280759, E02F 300
Patent
active
039918912
ABSTRACT:
A counterweight system for use with an earthmoving apparatus adapted for selectively counterbalancing the front end of the drive machine thereof or the rear end of the drive machine thereof depending on whether or not an earthmoving structure is attached to the rear end. The rear end earthmoving structure may comprise a backhoe which is removably connected to the drive machine permitting the apparatus at times to function solely as a bulldozer or front loader apparatus. The counterweight system permits the counterweight to be installed on the front end earthmoving structure when the backhoe is in use thereon to counterbalance the backhoe. The counterweight system permits the counterweight to be installed on the rear end of the drive machine when the backhoe is removed therefrom so as to reversely counterbalance the apparatus when utilizing the same as a conventional front loader or bulldozer apparatus.
REFERENCES:
patent: 2820556 (1958-01-01), Davis
patent: 2967718 (1961-01-01), Orwig
patent: 3003785 (1961-10-01), Straszheim et al.
patent: 3511692 (1950-06-01), Brown
patent: 3533524 (1970-10-01), Wilcox
patent: 3635493 (1972-01-01), Barth et al.
patent: 3788674 (1974-01-01), Casey
patent: 3795330 (1974-03-01), Jorgensen et al.
Caterpillar Tractor Co.
Paperner L. J.
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