thomas. Dozer. June 01st , 2018.
In the very snowy winter of 1946–47 in the United Kingdom in at least one case a remote cut-off village running out of food was supplied by a bulldozer towing a big sledge carrying necessary supplies.
Another type of bulldozer is the wheeled bulldozer which generally has four wheels driven by a 4-wheel-drive system and has a hydraulic articulated steering system. The blade is mounted forward of the articulation joint and is hydraulically actuated.
Widespread acceptance of the bull-grader does not seem to appear before the mid-1930s. The addition of power down-force provided by hydraulic cylinders instead of just the weight of the blade made them the preferred excavation machine for large and small contractors alike by the 1940s by which time the term "bulldozer" referred to the entire machine and not just the attachment.
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