Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 380
for conve- The mass is always larger than the hole nience in future separating. The shot from which it exudes, and as the period are next elevated to the top cylinder of of dropping is not exactly uniform, a series, arranged on an incline. Two perhaps half-a-dozen sizes are produced of these… … tire length, and table is revolved with a velocity of then the small ones run out into the 1000 ft. per minute on the periphery, next cylinder below, and thus the sifting and the lead is thrown through the goes on until each cylinder has picked perforations on the side, forming round out the…
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
