The builder & workman's new director : comprehending definitions and descriptions of the component parts of buildings. the principles of construction and the geometrical development of the principal difficulties that usually occur in the different branches of mechanical professions employed in the erection of edifices (1824)
Nicholson, Peter, 1765-1844, author · [London] : John Day, Mark King, James Pringle, Henry Joll, Edward Sanders, Robert Johnson, William Foster, John Wright & Thomas Prosser · leaf 610
APPENDIX, PROPOSITION XXIV, THEOREM. PROPOSITION XXII, THEOREM. The rectangle under the axis major, and that part of it between the Every parallelogram of which the sides are parallel to two conjugate intersection of the normal and the nearest focus, is equal to the diameters, and are tangents to… … ogram UVWX touch the curve at M and I. Produce Aa to whence, eliminating v, w, u = e — cut UX in t and VU produced in T. Draw the ordinates of «- ' the axes HI, PM ; also draw CN perpendicular to UV, cut- The elimination is obtained by dividing the first equation by ting UV in N. the second} and…
Architecture · Building · Perspective
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
