Small engines and boilers; a manual of concise and specific directions for the construction of small steam engines and boilers of modern types ... for amateurs and others interested in such work (1899)
Watson, Egbert P. (Egbert Pomeroy) · New York, D. Van Nostrand company · leaf 81
the ends of the cylinder, drillthrough to meet the holes in the valve-face ; whenall the holes are drilled, make a drift, or square-ended chisel, and drive out the metal between theholes. This operation requires care to make itsuccessful and there should be several drifts, eacha little wider than…
Steam-engines
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
