Elementary projection drawing. Theory and practice. For preparatory and higher scientific schools, industrial and normal classes; and the self-instruction of teachers, inventors, draftsmen, and artisans. In six divisions .. (1880)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 262
ith holes, se, to allow water to flow through it.mm is the valve stem, ddkk is a perforated standard servingas a guide to the valve stem, and also as a support to the hollowscrew s. n is a rest, secured to the valve stem by a pin p. qis a nut, part of which, qq\ is made hexagonal, r is a jam*nut… … IRON CONSTRUCTIONS. J 55 ;iut q; and outside of that, and resting on the top of the wastevalve chamber, are the standards, dd. 960. Operation.—Principles involved.—In the case of whatmight he called passive constructions, that is mere stationary sup*ports, like bridges, &c, a knowledge of the…
Geometrical drawing · Mechanical drawing
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