x at each at each end, and through the flange next to the cylinder C passes through the furnace, the buckets lifting the ore and end and suitable dust chambers, and provided with novel are orifices corresponding in number and location with the letting it fall through the flame or hot air passing… … a fire box, F, -from gether. The shortest NEW ORE ROASTING FURNACE. cylinder, B, is designed which a fixed cfKudrl- to be about 2 feet long cal flue extends a short distance into the cylinder A, to convey therein the products and of about 6 feet external diameter, bolted tur/ragb. its the furnace,…
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