Stereotomy : Problems in stone cutting. In four classes. I. Plane-sided structures. II. Structures containing developable surfaces. III. Structrues containing warped surfaces. IV. Structures containing double-curved surfaces. For students of engineering and architecture (1875)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York : J. Wiley and son · leaf 128
s seen in plan, Fig. 8, the linesg, gu g2, etc., horizontal projections of successive positions of G,will not pass through any one point, as at o in PL VII., Fig.50, but will intersect each other, as in Fig. 8, so that wheng, g\,g<i, gn, and thence their intersections, p, q, r, etc.,… … Fig. 8. 1°. The curve pqr is the horizontal projection of a verticalcylinder, C, which replaces the vertical straight line (axis) o —012 in PI. VII., Fig. 50. 2°. The curve LP is the horizontal projection of a generalform of a helix, h, (123). 3°. The straight line g, then moves upon the helix A,…
Stereotomy
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