The American house carpenter. A treatise on the art of building. Comprising styles of architecture, strength of materials, and the theory and practice of the construction of floors, framed girders, roof trusses, rolled-iron beams, tubular-iron girders, cast-iron girders, stairs, doors, windows, mouldings, and cornices; together with a compend of mathematics. A manual for the practical use of architects, carpenters, stair-builders, and others (1880)
Hatfield, R. G. (Robert Griffith), 1815-1879, Hatfield, O. P., ed · New York, J. Wiley & sons · leaf 599
sect ^^ with the line e f, as at ^; then g is the centre, as wasrequired. A second method. Upon any two points in the circumfer-ence nearly opposite, as a and b {Fig. 362), describe arcs cut- … ting each other at c and d\ take any other two points, as eand /, and describe arcs intersecting, as at g and h ; join gand h and c and d\ the intersection 0 is the centre. This is upon the same principle as Art. 514. A third method. Draw any chord, tx.-s ab {Fig. 363), andfrom the point a draw ^^…
Carpentry · Architecture · Building
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