Dingey, Peter Spear. [from old catalog] · New York, J. Wiley & sons · leaf 114
y. The engines also gaina decided advantage when winding with conical drums,because, instead of the winding being started at fullspeed, it gradually increases, thus giving the engines abetter chance to do their work. It is scarcely necessary to inform my readers that itrequires a great deal more… … SWEEPING CONICAL DRUMS. PATTERN MAKING. 71 dry work is just a little above unskilled labor—somethingrequiring more brute force than anything else. Suchideas, though, do not prevail among our genuine andpractical engineers; they are only found among the clev-erly ignorant. All those who have much to…
Patternmaking
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
