D, is pro-|errors,a clamp, M, is provided which embraces the | beloosened and the plate, B, would be moved until the vided with a standard, E, which extends behind the | edge of the plate, B, and carries a pointer, N, which is | dot pointed to by the pointer, N, would be seen in the plate, B, about… … index should be allowed FIG. 3—FRONT ELEVATION OF PLATE APPLIED FIG. 2.—-SIDE ELEVATION OF LATHE, SHOWING teeth, the plate must be to touch the plate lightly. TO THE LATHE, APPLICATION OF INDEX PLATE. moved three dots for every A magnifying glass assists tooth, for 60 teeth four dots, greatly in…
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