Public works machine having a removable counterweight and method

Details Public works machine having a removable counterweight and method Public works machine having a removable counterweight and method

1975-01-07

1976-06-15

Spar, Robert J.

Traversing hoists

Overhead

Cable

212 49, E02F 918

Patent

active

039631338

ABSTRACT:
This invention relates to a public works machine comprising a frame, a working attachment, a counterweight and auxiliary jib moving above the counterweight and coupled to the working attachment.
This auxiliary jib is provided with a guide member for a flexible connection means, said member being disposed above the counterweight, whilst such a connection means connects the counterweight to that part of the working attachment which is movable with respect to the part directly coupled to the frame by abutting on the guide member, constituting a link for handling said counterweight.
One application of the present invention is the providing of a high power hydraulic shovel with a dismountable counterweight.

REFERENCES:
patent: 2068397 (1937-01-01), Chapman
patent: 2130487 (1938-09-01), Foley
patent: 2408500 (1946-10-01), West
patent: 2820556 (1958-01-01), Davis
patent: 3653486 (1972-04-01), McLean et al.
patent: 3726416 (1973-04-01), Pottorff et al.

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