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Bucyrus-Erie 50-R, 55 feet high and housing a massive drill, was used in the successful rescue of two miners during the 1963 Sheppton, Pennsylvania mining disaster. [16] 1250-B/W and 1260-W walking draglines, with buckets between 33 and 45 cu yd (25 and 34 m 3).
From 1985 onwards, all new machines carried the 'RB' name instead of 'Ruston-Bucyrus', and in 1987, a new mechanical/hydraulic powered 51–60 model developed from the 38-RB was offered for use as a crane or dragline excavator [1] In 1990, RB bought from its rival Priestman, the design and manufacturing rights to Priestman's Variable ...
An Allis-Chalmers tractor. This is a list of farm and industrial tractors produced by Allis-Chalmers Corporation, as well as tractors that were produced by other manufacturers and then sold under the Allis-Chalmers brand name. For clarity, tractors are listed by series and separated by major models as needed.
CASE 580N tractor loader backhoe. Case was the first company to introduce the factory-integrated backhoe loader. [13] [14] In February 2017, the firm released an upgraded backhoe loader in Europe, which meets the Stage IV/Tier 4 Final emissions regulations. [15] [16] [17] CASE CX300D and CX370D crawler excavators.
Rock drill mounted on a tripod. The large objects on the legs are weights to anchor it down into position. In reciprocating power drills, the drilling cylinder is mounted on a feed-screw, such that as the hole is drilled and the drilling point recedes from the rock face, the drill-bit continues to move into it, while the anchor point (on the tripod or column) remains in place. [11]
A bulldozer or dozer (also called a crawler) is a large, motorized machine equipped with a metal blade to the front for pushing material: soil, sand, snow, rubble, or rock during construction work. It travels most commonly on continuous tracks , though specialized models riding on large off-road tires are also produced.
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