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 234
cks beradial, tne mortar spaces will be inconveniently wide at their outerends, unless the arch be a very wide one, or unless it have a verylarge radius. The permanent supports of the arch, as wPT, are called abutments, and the radial surface, as ?iab, against which the arch rests,is called a…
Geometrical drawing · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
