Identifier: practicalelectro00brun (find matches)
Title: The practical electroplater. A comprehensive treatise on electroplating, with notes on ancient and modern gilding, and formulas for new solutions
Year: 1894 (1890s)
Authors: Brunor, Martin
Subjects: Electroplating Gilding
Publisher: New York, E. Brunor (etc., etc.)
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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e lining, which is a solid firebrickcylinder incased in iron, E, and is heated by a burnerwhich distributes the heat evenly around the pot. Thecombustion chamber under and around the pot is com-pletely shut off from the upper part of the pot. The prod-ucts of the combustion are injected into the stove pipe Hby the pipe G, and the smoke or fumes which rise from thepot into the upper part of the hood A are rapidly expelledthrough the pipe which connects with the chimney.The door C gives access to the pot for changing it.To remove the pot or insert it, the front half of the hoodhinged on top is opened upward. Connection with gas isby a three-eighth inch pipe, K, to the valve I. The air pipemust be brought down to or near the floor and connectedwith the air pipe L on the furnace by an upward turn, asshown in the illustration. The furnace is intended to receive the floor sweepsevery day, as soon as gathered. When the caldron is fulland well packed the furnace is lighted by : First, turning
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Sweeps Burning Furnace. 268 THE PRACTICAL ELECTROPLATER. on the air cock full ; second, holding a lighted paper torchinto the lighting hole and then turning on just enough (andno more) gas as is needed to produce a steady combustion.Only a very small blue flame should issue from the lightinghole. When thus adjusted, the lighting hole is closed bya fireclay plug provided for it. To save gas in burning sweeps the use of some cheappetroleum oil, kerosene, or naphtha is recommended. Withevery charge use about a pint of the oil to moisten it,sprinkling it evenly over the top of the charge, or mixingit with the sweeps. It is then only necessary to get the caldron cherry red,when the sweeps will burn to ashes without the further useof gas. A good plan is to light the furnace late in theafternoon, get the caldron cherry red, and, turn off bothgas and air (gas first). The oil mixed with the sweeps willthen complete the reduction to ashes.

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