Iron corrosion; anti-fouling and anti-corrosive paints . Fig. 52.—Paint-mixing macliine. In addition to the qualities already specified, the pig-ments employed must be perfectly dry and free frommoisture, and be in the finest possible state of are placed in a suitably large vessel containing thelinseed varnish, where the two are mixed intimately togetherby means of a stirrer. For large quantities, such as aregenerally employed in the preparation of anti-corrosive 194 lEON-COREOSION AND ANTI-COBEOSIVE PAINTS. paints, hand mixing is too cumbrous, tedious and costly,and is advantage
Iron corrosion; anti-fouling and anti-corrosive paints . Fig. 52.—Paint-mixing macliine. In addition to the qualities already specified, the pig-ments employed must be perfectly dry and free frommoisture, and be in the finest possible state of are placed in a suitably large vessel containing thelinseed varnish, where the two are mixed intimately togetherby means of a stirrer. For large quantities, such as aregenerally employed in the preparation of anti-corrosive 194 lEON-COREOSION AND ANTI-COBEOSIVE PAINTS. paints, hand mixing is too cumbrous, tedious and costly,and is advantageously superseded hj mechanical appliances,such as that shown in plan in Fig. 51, and a vertical sectionin Fig. 52. In this smooth-walled mill two twisted annular beaters,engaging one with the other, rotate in opposite directions,and by the stirring, separating, turning, rolling, pushing,and working action they exert on the materials ensure the. Pig. —Werner & Pfleiderers paint mixer. intimate admixture of the same in a comparatively shortertime, and with less expenditure of power, than could other-wise be effected. Tlie action of the machine proceeds withgreat uniformity, and results in the production of a satisfac-tory effect, the particles of material being kept in continualmotion and forced to intermingle until worked up into ahomogeneous mass. The stirrers brush against the bottomof the mixture and against each other at every revolution, IRON-CORROSION AND ANTI-CORROSIVE PAINTS. 195 and thus prevent any part of the mass from remainingunacted upon. The machine is emptied by simply tippingthe pan, the stirrers being kept in motion in order to facili-tate the removal of any material adhering to the sides. Toclean the machine out thoroughly it may be taken apart bysimply removing a cotter. The mixer of Messrs. Werner & Pfleiderer, of Cannstatt-Stuttgart (Figs. 58, 54), is extremely simple in principle, and KALE
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcorrosionandanticorr
