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 46
details will then be ready for fitting and for drill-ing without unnecessary delay. In fitting on the heads, and all details where SMALL ENGINES AND BOILERS. 29 bolts go through two parts, both pieces should bedrilled together. Sometimes clamps have to beEmployed for this work, in others one or two… … In selecting drills for tapped holes, take a drillthat will just fill the screw-die without shake, thenthe thread will be full. For steel it should be atrifle larger than for cast-iron or brass, for thesteel is tough, and taps are apt to break if theholes are too small. SMALL ENGINES AND BOILERS.
Steam-engines
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