ot affording opportunities for the entrance of dirt and the for- conveniently be performed upon horizontal machines. The mation of scale within the bubble cells, and, as a necessary principal feature of the device is the manner in which the consequence, interfering with the obtaining of a solid… … SANFORD’S UNTVERSAL GRINDFR. it is at present scarcely possible to prevent the formation of treatment, the steel is tender and requires to be dealt with Fig. 1 shows the grinder arranged for acting upon vertical the gas bubbles in the ingots during the process of casting, work; in Fig. 2 the wheel…
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