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 45
each other of the sections of railway wheels and rails. There was quite general agreement as to the following recommendations: a top radius of twelve inches; a quarter-inch corner radius; vertical sides sigr- eo- I 2^ IN. … to the web; a lower-corner radius of one-sixteenth inch, and, lastly, a broad head relatively to the depth. •Transactions A. S. C. E. January, 1891. EXERCISES FOR THE IRREGULAR CURVE. 39 CHAPTER V. THE HELIX.—CONIC SECTIONS.—HOMOLOGICAL PLANE CUEYES AND…
Mechanical drawing · Lettering
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