Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 196
s. near the ends of the base-hoard A When the nut is screwed up tight, G by means of 1\ in. screws. D and F and I approach, and may he made are screwed together, and the 2 are almost to touch each other. When the then (ixed perpendicularly upon G. G is nut is loosened, the spring causes G to joined… … but the holes in I are 1 in. larger in had better be broken off, and a new one diameter than the screws which pass ground upon an oilstone. For this pur- through them. The heads of the screws pose, the needle is held at an angle of are effectively enlarged by iron washers about 30° with the stone,…
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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