Mechanical Drawing Technique And Working Methods for Technical Students
Mechanical Drawing Technique And Working Methods for Technical Students
Charles L Charles Laban Adams
The book Mechanical Drawing Technique And Working Methods for Technical Students was written by author Charles L Charles Laban Adams Here you can read free online of Mechanical Drawing Technique And Working Methods for Technical Students book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Mechanical Drawing Technique And Working Methods for Technical Students a good or bad book?
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With radius 3^"* and P as a center, draw the pitch circle, J, of the front *The diameters 6}^", Fig. A, and 2$J", Fig. B, are the nearest fractional equivalents of the true (decimal) pitch diameters given on the plate (see table at the end of the book). STUDY PLATE 4. 73 sprocket, Fig. A. Draw line GH tangent to circle /. Tangent to GH, draw the pitch circle, N, of the rear sprocket, Fig. B. (Lay off the diameter, 2f", on the centre line XY, and find the centre by bisecting). (b) To find the di...rection of the lower portions, TU arid RS, of the cJtain. Tack a piece of paper over the drawing so as not to cover the lower half of the cir- cles J and N. (Do not place the tacks inside the boundary of the finished plate. ) On this extra sheet make a half-size diagram of the center lines, similar to Fig. E, placing line G'H' parallel to GH. Draw the common tangent, T'S' ; then, parallel to T'S', draw the required tangents, TU and/? 5. (Do not draw this diagram di- rectly on the finished drawing, as the necessary erasure will mar the paper.
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