Machine drawing; a text and problem book for technical students and draftsmen (1921)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 68
i ■■-^ i1 ■f- T^ Fig. 105. Conventional Treatment. The section or edge view of a flange shows the centers of the bolt holesa distance apart equal to the diameter of the circle of drilling, regardlessof their true projection. In such cases the intermediate holes are notdrawn as they add nothing to… … I r Fig. 106. Non-continuous Section. 92. Special Views.—When an object has one part at an angle thetwo views do not have to project if a better representation may be ob-tained by revolving or developing one of the views or part of a view.In Fig. 103 the top view shows the true angle and the front…
Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-165-135.webp)
