. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. 27t> MINING DEVICES AND ^^^Na^^sae ELEVATION. 3rd Fireplace 716. ORE ROASTING FURNACE. Section of the Pearce turretfurnace in which a circular oven is heated by outside fires. With rabbles on arms from a central re-volving shaft constantlystir th
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. 27t> MINING DEVICES AND ^^^Na^^sae ELEVATION. 3rd Fireplace 716. ORE ROASTING FURNACE. Section of the Pearce turretfurnace in which a circular oven is heated by outside fires. With rabbles on arms from a central re-volving shaft constantlystir the ore and move itforward around the hearthto a discharge plan and vertical sec-tion show much of the de-tail of this class of roast-ing furnace. The rabble arms to which the plows are attached arehollow, and are cooled by air or water. The furnace is entirely auto-matic, the ore being dropped?nd Fireplace f^.^^^ ^^le Ore hoppcr at in-tervals and carried intothe hearth of the traveling aroundthe hearth it is dischargedinto a chute, which deliversit to either a car or a coolingapparatus, from which itpasses to the air is used to coolthe rabble arms, the hot air may be delivered to the hearth at anypoint desired, by means of a simple automatic device. 717. Plan of turret roasting furnace with fireplaces and flue. 718. ORE RO
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Keywords: ., bookauthorhiscoxga, bookcentury1900, bookdecade1910, bookyear1910
