The American house-carpenter; a treatise upon architecture, cornices and mouldings, framing, doors, windows, and stairs. Together with the most important principles of practical geometry (1852)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 260
three given points in its curved surface:one perpendicularly over 6, at the height, b j ; one perpendicu-larly over 5, at the height, s x ; and the other over c, at the height,c I—these lines being drawn at right angles to the chord of thebase, b c. FromJ, through I, draw a line to meet the chord… … Fig. 234. plane of the base. This line can be proved to be the intersectionof these planes in another way ; from 6, through s, and from^,through .r, draw lines meeting at m ; then the point, w, will bein the intersecting line, as is shown in the figure, and also atFig. 293. From/, draw//>, at…
Carpentry · Architecture
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