. Journal. ening u into the nexttrough A. Here the wdiite lead receives motion in anopposite direction by the worm s, and finally leaves theapparatus at the opening X of the last trough. The hot S2A THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. [Mar. 3D. ism. air used for dryin enters through a conduit above, onone side of the cylinder, and escapes on the other sidethrough a pipe z. The washing apparatus, for separatingwhite lead trom nnattacked metal, of H. Kirberg, olHilden, near IKisseldorf (, No. L8,528, of January9, 18S4), claims to lie more etticicnt and less liableto get out of
. Journal. ening u into the nexttrough A. Here the wdiite lead receives motion in anopposite direction by the worm s, and finally leaves theapparatus at the opening X of the last trough. The hot S2A THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. [Mar. 3D. ism. air used for dryin enters through a conduit above, onone side of the cylinder, and escapes on the other sidethrough a pipe z. The washing apparatus, for separatingwhite lead trom nnattacked metal, of H. Kirberg, olHilden, near IKisseldorf (, No. L8,528, of January9, 18S4), claims to lie more etticicnt and less liableto get out of order than the one invented by Horn. beaters / screwed on to the beams e (Fig. 4), effect athorough agitation and thereby a rapid separation of themass of oxide into its constituents. The perforatedtray-shaped discharging scoop g, which takes up theparticles of lead freed from oxide from the bottom of thevat and throws them into the funnel h, is movable onits upper portion round a peg attached to an arm i,. As will be seen by reference to Fig. 1, the copper vat l>completely closed with a wooden cover and fastened tothe cast-iron supports a, is fed with the mass of oxide tobe operated on, and also with the necessary washingliquid through the funnels C (Fig. 3) fixed to the vatThe two reels d, turning in opposite directions by meansof toothed wheels driven by pulleys and provided with whereby it can be set forwards or backwards accordingto the required amount of discharge by means of a screwarranged underneath. In order to effect a slow or (piickwashing of hard, or in the other case of soft, oxide thecoupling I is opened, by which the cross-piece m runningloose on the axle can be turned a little, whilst the secondcross-piece remains fixed, and in this way the beams c and THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. 229 the surfaces of the beaters are brought to an inclinationwith tlie axis of the apparatus, whereby tlie rapidity ofthe motion of the mass towa
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
