Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 28
mechanical drawdng are indicated in the figure below.While getting his elementary practice with the ruling-pen the student may group them as shown,or in any other symmetrical arrangement, either original with himself or suggested by other designs. Lgr- 33. -t- CENTRE LINE. If red. CENTRE UlNE. If… … When drawing on tracing cloth or tracing jjaper, for the purpose of making blue-prints, all thelines wiU preferably be black, and the centre and dimension lines distinguished from others as indi-cated above, as also by being somewhat finer than those employed for the light outlines of theobject.…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
