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Protective Structures for Low-Coal Shuttle Car Operator - RI 9143
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    This report discusses the Bureau of Mines' efforts to develop partial protective structures for operators of low-coal shuttle cars. In coal seams 48 in high or less, full-coverage canopies are generally difficult or may be impossible to implement on high-speed face equipment due to the restrictions they impose on the operator's vision and comfort. Lim- ited coverage is one alternative that provides an acceptable level of operator protection in thin-seam applications where conventional full- coverage canopies cannot be used. Three possible limited-coverage de- sign scenarios (roll bars, sliding canopies, and flip-top canopies) were designed, fabricated, and evaluated for low-coal shuttle cars. All three designs were determined to be feasible and desirable for low-coal shuttle car application.

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