n lids to keep out impurities and PLASS’ PATENT SAFETY BAND-SAW. cinders, which reduce the high heat requisite for the process. The upper pair of each set of clamping arms isheld bya lever It is usual, in band-saws, to place the saw outside the frame The fire in which the crucibles are placed, is… … ens attempted to lower himsclf in a field adjoining some farm rendering them dangerous to the operator either from break- tween iron and steel. When the operation is dcemed com- houses at Denholme. Cautiously opening the escape valve, plete, the fire is allowed to fall, but the furnace is not un-…
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