A manual of elementary geometrical drawing, involving three dimensions. Designed for use in high schools, academies, engineering schools, etc. : and for the self-instruction of inventors,artizans, etc. ... In five divisions .. (1867)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York : J. Wiley and son · leaf 68
nstruction.—After drawing the lines, 12 inchesapart, which represent the edges of the timber, drop a perpendicu-lar of 6 inches in length from any point as a. From its lower ex-tremity, draw a horizontal line 12 inches in length, and from c, dropthe perpendicular c5, which completes the elevation.… … Tl S ^ CONSTEUCTIONS IN WOOD. 49 Draw a diagonal, ah\ divide it into four equal parts, and takethe first and third points of division for the centres of two pins,having each a radius of three-fourths of an inch. Execution.—The position of the heavy lines on these figures istoo obvious to need…
Geometrical drawing · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Catalogue of the international exhibition of contemporary medals. March, 1910 [electronic resource] (1911)](https://img.insideoutlibrary.com/img/200/ia-bml-NK6310_Am3-219-242.webp)
