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 251

An illustration from 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, leaf 251 — ess. A surface maybe considered as formed bythe motion of a line. Anylength of line moved side-wise in any direction willform a surface, of a widthequal to the length of theline, and of a length equalto the distance over whichthe line is moved. Thereare two different classesof surfaces; namely,… … Fig. 142. Hyperbola—Section from a Cone 172 MECHANICAL DRAWING 107 there must be a pattern giving the shape of any irregular surface,and in sheet-metal work a pattern must be made such that, when asheet is cut, it can be so formed that it will be of the same shapeas the original object. This…

Mechanical drawing · Blueprinting

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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)

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