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 524
re the versed sine is small incomparison with the chord, tJie area equals approximately twotJiirds of the chord into the versed sine. SECTION XII.-THE ELLIPSE. 451.—Ellipse : Definitions.—Let two lines, PF, PF {Fig.299), be drawn from any point P to any two fixed pointsFF, and let the point P move… … Fig. 299. the middle of FF, the centre ; the line A J/drawn throughFF and terminated by the curve, the Major or TransverseAxis ; the line B O, drawn through C and at right angles toA M, the Minor or Conjugate Axis; the line G P, drawnthrough Pand (f and terminated by the curve, the Diameterto the…
Carpentry · Architecture · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
