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 532
d F, the foci; and then the curve may be describedby any of the various methods given at Arts. 548 to 552. If the major axis only and the parameter are given, then{Art. 454) since— b^^ay,we have b — Vay. (179-) Or: The semi-minor axis of an ellipse equals the square rootof the product of the… … dius and from the focal points as centres, describe arcs cut-ting each other at B and O {Fig. 299). The intersection ofthe arcs gives the limit to B O, the minor axis. With thetwo axes proceed as before. Points in the curve may befound by computing the length of the ordinates, and thenthe curve…
Carpentry · Architecture · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
