§ 47.162. Gangways.
(a) Main gangways, where metal is carried by hand, bull or truck ladles, shall be not less than 5 feet wide. Truck-ladle gangways, which are not main gangways, shall be not less than 4 feet wide. Bull-ladle aisles between floors shall be not less than 3 feet wide. Single hand-ladle or buggy-ladle aisles between floors shall be not less than 18 inches wide. When trolleys are used over molding floors for pouring metal, the aisles shall be of sufficient width to permit the safe ingress and egress of employes and the safe use of the ladles. When it is necessary to occupy the central portion of the floor space in the production of castings, continuous gangway space shall be provided.
(b) During the progress of casting, each gangway or aisle shall be kept entirely free from undue dampness or obstruction of any kind. Each gangway shall be kept in good condition at all times. Each gangway used for industrial trucks shall be constructed of a hard material of substantial character, and the top of the rail shall be flush with the floor.
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