A practical treatise on mechanical dentistry . pipe, G. The air-cock, R, is to provide a means for shutting offthe air supply from either burner when required. H is the gassupply; K, air-pipe connecting with the bellows. Size of muffle,inside measurement, 8 inches long, ^A inches wide, 2^ incheshigh. With gasolene gas porcelain teeth can be enameled in from 58 MECHANICAL DENTISTRY. ten to fifteen minutes; with ordinary city gas in from fifteen totwenty-five minutes, according to quality. In thirty minutes aheat sufficient to destroy the muffle can be produced, whichindicates a temperature of o
A practical treatise on mechanical dentistry . pipe, G. The air-cock, R, is to provide a means for shutting offthe air supply from either burner when required. H is the gassupply; K, air-pipe connecting with the bellows. Size of muffle,inside measurement, 8 inches long, ^A inches wide, 2^ incheshigh. With gasolene gas porcelain teeth can be enameled in from 58 MECHANICAL DENTISTRY. ten to fifteen minutes; with ordinary city gas in from fifteen totwenty-five minutes, according to quality. In thirty minutes aheat sufficient to destroy the muffle can be produced, whichindicates a temperature of over 32400 F., much higher than isever needed for any kind of work, except the fusing of platinum. Fig. Three-eighths of an inch gas-pipe will supply sufficient gas andcan be worked with the ordinary foot-bellows. The Sharpe Furnace. — One of the simplest and most completegas muffle-furnaces yet placed upon the market, is that inventedby Dr. W. M. Sharpe, of Binghamton, New York, and is exhib-ited in Figs. 31 and 32. Fig. 31.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903
