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 . s do not get a chance to cut properly. Afterbeing run for a time the wires will be found to be bent attheir ends in the direction the wheel has been running; the 82 THE POLISHING AND PLATING OF METALS. brush should then be taken off the spindle and put backwith the other side of the hub next to the collar on thespindle, so that the ends of the wire will again strike thesurface of the work, instead of dragging o
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 . s do not get a chance to cut properly. Afterbeing run for a time the wires will be found to be bent attheir ends in the direction the wheel has been running; the 82 THE POLISHING AND PLATING OF METALS. brush should then be taken off the spindle and put backwith the other side of the hub next to the collar on thespindle, so that the ends of the wire will again strike thesurface of the work, instead of dragging over it. The dif-ference in cutting will be noticed at once. A brush that isrun too fast will crystallize the steel wires and they willsoon break off; too heavy pressure of the work will alsodo this, making it necessary to stop and refill the hub withnew wires, which are bought ready for insertion. The packed brush is subject to the same peculiarities, butbeing more evenly distributed, the wires are stiffer and willrun longer under proper usage, although they are moreeasily broken by careless workmen and the hubs are harderto fill. A swing brush will reach into uneven work better. Fig. 27. Scratch Brush for Castings. than a packed brush and it is generally used on such work,while the packed brush will cut faster and so does morework in a given time on surfaces for which it is has been a tendency lately to reduce the size of wirein these brushes and to make the attachment to the hub asflexible as possible, thus prolonging the endurance of thebrush by adding to its elasticity. This has been made possible by the tendency of foundrypractice in producing softer castings. The extent to whichthis has gone was shown in a curious way recently by aninvestigation undertaken by a large manufacturer of sold a number of lathes to England, making what heconsidered a conservative statement of their capacities, based THE POLISHING AND PLATING OF METALS. S3 on their daily p
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectelectro, bookyear1904
