Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc (1919)
Fairfield, Howard Parker, 1858-, Kenison, Ervin, Waite, Edward B. (Edward Broughton), 1873-, American Technical Society · Chicago, American technical society · leaf 257
n Fig. 151 is shown 177 112 MECHANICAL DRAWING plan and elevation of a three-piece elbow and collar, and develop-ments of the four pieces. In order to construct the various partsmaking up the joint, it is necessary to know what shape and sizemust be marked out on the flat sheet metal so that when… … Fig. 151. Plan, Elevation, and Development of Three-Piece Elbow and Collar ments. Let the lengths of the three pieces A, B, and C be the sameon the upper outside contour of the elbow, the piece B at an angleof 45 degrees; the joint between A and B bisects the angle betweenthe two lengths, and in…
Mechanical drawing · Blueprinting
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