The polishing and plating of metals; a manual for the electroplater, giving modern methods of polishing, plating, buffing, oxydizing and lacquering metals, for the progressive workman . d gently raising the han-dle of the tool as the high and uneven pieces are cut down. In using the tool, pass or slide it slowly back and forthagainst the wheel, using less pressure when cutting downthe corners or turning to a sharp bevel. If the wheel is glazed or slightly out of true, only touchit lightly, or the fast cutting of the tool will unnecessarilywaste the wheel. Hold the tool in such a manner that th
The polishing and plating of metals; a manual for the electroplater, giving modern methods of polishing, plating, buffing, oxydizing and lacquering metals, for the progressive workman . d gently raising the han-dle of the tool as the high and uneven pieces are cut down. In using the tool, pass or slide it slowly back and forthagainst the wheel, using less pressure when cutting downthe corners or turning to a sharp bevel. If the wheel is glazed or slightly out of true, only touchit lightly, or the fast cutting of the tool will unnecessarilywaste the wheel. Hold the tool in such a manner that the cutters will re-volve with the wheel and in line with its motion. If fireflies, it is a sure sign that the wheel is grinding away thepoints of the cutters, because of their running with want ofoil, or an improper position of the tool. Emery wheel THE POLISHING AND PLATING OF METALS. 45 dressers and diamond turning tools are usually kept lockedup, in charge of the foreman, to prevent undue waste ofthe wheels. In grinding castings, especially small ones, which heatquickly from the friction of the wheel, a tub or pail of coldwater should be at hand, into which the castings may be. Fig. 19. Foot Power Polishing Lathe. immersed from time to time, until cooled, when the grindingcan continue. In grinding rough, heavy castings, the first operation isusually upon a coarse, solid emery wheel which is run at aslow speed, not more than 1,000 revolutions per wheel is used mostly for removing gates of castingsand burrs or other rough and uneven places upon the cast-ings. If no exhaust fan is used, a glass or metal shade 46 THE POLISHING AND PLATING OF METALS. should be placed over the wheel in order to prevent the par-ticles of emery and metal from flying into the face and eyesof the workman, as such particles are extremely rough andsharp, and are difficult to remove from the eyes after gettinginto them. If such a piece is once imbedded into the eye, avisit to a doctor may be n
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectelectro, bookyear1904
