Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 35
e to anv triven line, thus— Place one edge of either triangle exactly on thegiven line ; place the longest edge of the secondtriangle exactly to the longest edge of the firsttriangle. Hold the second triangle in place andturn the first triangle so that one edge will form a O 46 ROGERS DRAWING AND… … 6 By sliding the first triangle upon the second one,any number of lines may be drawn which will be atright angles to the given line. With a knowledge of the preceding rules a great
Mechanical drawing · Machine design
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
