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 233
A^B aboutone end A as a pivot,until it is parallel to theground line. Project thenew point Bi downwardto a point on the verticalplane to a line drawn fromB parallel to the groundline, locating the point ^i.The line connecting ^iand A is the true lengthdesired, since the truelength of a line is… … Fig. 119. True Length of Inclined Line not Shownin Its Projections
Mechanical drawing · Blueprinting
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