{"product_id":"2940013238824","title":"Protective Structures for Low-Coal Shuttle Car Operator","description":"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 owing to the restrictions they impose on the operator's vision and comfort. Limited coverage is one alternative that provides an acceptable level of operator protection in thin-seam applications were conventional full-coverage canopies cannot be used. Three possible limited-coverage design 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.","brand":"1001 Property Solutions LLC","offers":[{"title":"Default Title","offer_id":47082384916720,"sku":"2940013238824","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013238824_p0.jpg?v=1763578386","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013238824","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}