Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 228
tangles to e c ; this angle, e c t, being increased by adding the an-gle, t c I, corresponding to t c I, Fig. 263, the point, Z, is reached,and the proper position and length of the lines, e c and c I ob-tained. To obtain the face-mould for a rail over a cylindricalwell-hole, the same process is… … Fig 264. 369.—Case 2.— When the cylinder is large. Fig. 264 re- 214 AMERICAN HOUSE-CARPENTER. presents a plan and a vertical section of a line passing through thecentre of the rail as before. From 6, draw h k, parallel toed; ex-tend the lines, i d and j e, until they meet k h in k and / ; from…
Carpentry · Architecture
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