Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 70
the same figure,also each of the parallel lines bearing the numbers1, 2, 3, 4, 5, 6, 7, and 8. A curve drawn throughthese points will give the shape of the half inter-section. GENERAL INSTRUCTIONS FOR MACHINE DRAWING Line Shading. When it is necessary to sug-gest the character of a surface without…
Mechanical drawing · Machine design
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Il terzo [-qvinto] libro ... (1551)](https://img.insideoutlibrary.com/img/200/ia-ilterzoqvintolib00serl-371-632.webp)
