The modern electroplater; a complete book considering fully the elementary principles of electro deposition of metals, their practical application and industrial use . Fig. 134.—Lump Pumice(Crown Rheostat & Supply Co.) powder and cake form. Crocus is used on work re-quiring a high polish and fine finish. Pumice stone, as its name implies, is composed ofpumice usually imported from Italy. Very excellentold brass finishes may be obtained with its use. Lime compositions can be obtained in powder formready to mix with grease or water. While they areespecially good compounds for nickel, copper allo
The modern electroplater; a complete book considering fully the elementary principles of electro deposition of metals, their practical application and industrial use . Fig. 134.—Lump Pumice(Crown Rheostat & Supply Co.) powder and cake form. Crocus is used on work re-quiring a high polish and fine finish. Pumice stone, as its name implies, is composed ofpumice usually imported from Italy. Very excellentold brass finishes may be obtained with its use. Lime compositions can be obtained in powder formready to mix with grease or water. While they areespecially good compounds for nickel, copper alloyscan also be readily finished with them to a high luster. Rouges, formed from oxides, are usually red orblack in color. Red rouge is the most popular and isused for coloring and fine polishing. Black rougeis manufactured for buffing materials on which thered color would be objectionable. Rotten stone may be obtained in both powdered and 220 The Modern Electroplater lump form. It has much the same characteristicsas the foregoing abrasives. Emery can be obtained in cake form, the emerybeing mixed with the hard grease of the cakes. It. Fig. 135.—Finishing Composition in Cake Form (A. P. Munning & Co.) may also be secured, as is the case of the other com-positions, in barrel quantities, the mixture of greaseand abrasive having the same qualities as are foundin the cake form.
Size: 1842px × 1356px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectelectro, bookyear1920
