The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 402
upon an inclinedvmll. Cast the ray, a b, {Fig. 350,) from the end of the shelf tothe face of the wall, and from b, draw b c, parallel to the shelf;cast the ray, d e, from the end of the shelf; then the lines, d eand € c, will define the shadow. These examples might be multiplied, but enough has… … Fig. 851. a90 AMERICAN HOUSE-CARPENTER. 511.—To find the shadow of a projecting horizontal beamFrom trie points, a, a, &c., {Fig. 351,) cast rays upon the wall .the intersections, e, e, e, of those rays with the perpendicularsdrawn from the plan, will define the shadow. If the beain be…
Carpentry · Architecture
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