Safe foundry practice . Fig. 15. A Special Chamber for Sand-blasting. (Strong air suction, through the exhaust hoods shown in the upper part of the picture, wiJ remove a large quantity of th^ dust that is created, but it would be better if the ducts were placed in the floor, with gratings over them, or in the side walls. The helmet which the operator is wearing is of a type commonly used in work of this kind, .^s explained in the text, no entirely satisfactory helmet has yet been devised.) SAND-BLASTING Cotirtes ilic WcsUrn Electric Nca. Fig. 16. Cabinets for Sand-blasting Small Castings. (The
Safe foundry practice . Fig. 15. A Special Chamber for Sand-blasting. (Strong air suction, through the exhaust hoods shown in the upper part of the picture, wiJ remove a large quantity of th^ dust that is created, but it would be better if the ducts were placed in the floor, with gratings over them, or in the side walls. The helmet which the operator is wearing is of a type commonly used in work of this kind, .^s explained in the text, no entirely satisfactory helmet has yet been devised.) SAND-BLASTING Cotirtes ilic WcsUrn Electric Nca. Fig. 16. Cabinets for Sand-blasting Small Castings. (The castings are placed in the cabinets and are held and turned about bv the operators, who watch the progress of the work through glass panels. The dust is carried off through the exhaust ducts.) here outlined is highly objectionable to the men, andin fact they often refuse to wear apparatus of thistype, claiming that the cool air passing down the necksoon causes them to catch cold. Baffles and variousother distributing devices to regulate the flow of theair within the helmet have been tried, but no idealand wholly satisfactory solution of the difficulty hasyet been worked out, so far as we are aware. In the 56 THE TRAVELERS INSURANCE COMPANY Opinion of certain foundry experts, an ordinary helmetwith a respirator attached, or used in conjunction witha separate respirator, constitutes the best device forthe protection of the sand-blaster, when all phases ofthe problem are considered. Each compartment used for sand-blasting shouldbe
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectacciden, bookyear1920
