. Journal. lit. 3. May 29,1883.] THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. 347 axles ((. Water is admitted into A, passing out neat (he top by the pipe K. Below the cylinder is a small trough B, into which fused caustic soda is fed. As the r A revolves, it dips a little below the surface of tiie caustic soila and emerges coated with a lilm oi solid exact and certain correspondence : this was not the caseoriginal machine. The slide S, which carries the upper mould, is actuated by the cam J. The mouldsplaster of Paris, and are fixed in iron boxes in the usual manner. With 1 horse-power, 5


. Journal. lit. 3. May 29,1883.] THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. 347 axles ((. Water is admitted into A, passing out neat (he top by the pipe K. Below the cylinder is a small trough B, into which fused caustic soda is fed. As the r A revolves, it dips a little below the surface of tiie caustic soila and emerges coated with a lilm oi solid exact and certain correspondence : this was not the caseoriginal machine. The slide S, which carries the upper mould, is actuated by the cam J. The mouldsplaster of Paris, and are fixed in iron boxes in the usual manner. With 1 horse-power, 55 or tiO revolutions. Fig. t. caustic soda, which on reaching the scraper E is detachedfrom the cylinder and falls into a conduit, from whichit falls between the toothed rollers 11 and II. « hich crush it into small fragments. Figs. :i and 4 represent anotherdisposition of apparatus for the same purpose. Thereare two hollow cylinders A and B turning in oppositedirections. At each extremity of the cylinder A is aflange which overlaps the corresponding extremity of thecylinder B. C is a hopper into which the fused causticsoda is charged. It is provided with a slit at the bottomand a contrivance to regulate the feed at will. The twocylinders are kept cooled by water continually passingthrough them. K ami F are scrapers which detach thesolid caustic soda and deliver it between the two toothedrollers.—S. H. TheProtection qfNitrati of Ammonia from D< liq •W. R. Lake, Louden. Eng. Tat. 186S, Feb. 10, 18S5. NITRATE of ammonia, used in the manufacture ofexplosive compounds, is protected from deliquescenceby


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882