. Railway age gazette . Mould Complete with Chuck and Grinders superheater elements and the header. The importance ofmaintaining the correct radius of the two parts of these jointsis apparent. It has been found that grinders made of castiron or steel are frequently continued in use after they have. Mould Assembled for Casting the Grinding Sphere and Chuck withGrinder in Position lost the proper shape because of the lack of tools or facilitiesfor truing them up. The development of the soft metalprocess has provided a means by which grinders can bequickly and cheaply renewed as often as is neces
. Railway age gazette . Mould Complete with Chuck and Grinders superheater elements and the header. The importance ofmaintaining the correct radius of the two parts of these jointsis apparent. It has been found that grinders made of castiron or steel are frequently continued in use after they have. Mould Assembled for Casting the Grinding Sphere and Chuck withGrinder in Position lost the proper shape because of the lack of tools or facilitiesfor truing them up. The development of the soft metalprocess has provided a means by which grinders can bequickly and cheaply renewed as often as is necessary, withoutthe service of skilled labor or machine tools. Grinding cups for the ball ends of the units and grinding 550 RAILWAY AGE GAZETTE, MECHANICAL EDITION Vol. 88, No. 10 spheres for the seats in the header are made of lead or hardbabbitt metal by casting in moulds which insure uniformityand correctness of the contour. A mould consists of threeparts, a base in which the cup grinder is cast, a base in whichthe spherical grinder is cast and the top part of the mouldwhich is used with either base. A chuck is provided whichwill hold either the cup or the spherical grinder and which hasa shank suitable for use in an air motor or hand brace. Whenthe grinders lose their contour they may be
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1913
