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 325

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 325 — elevation theselines are shown as the points 1, 2, 3,at their true distance apart. Hence if the ellipse is revolvedaround iis axis cd, the distances 1-1, 2-2, 3-3 may be laid off onlines perpendicular to cvd°, and the true size of the figure be shown.In Fig. 1 10 a plane cuts a cylinder obliquely.… … Fig. 140. Ellipse -Section from aCylinder 170 MECHANICAL DRAWING 105 projected down on the cutting plane, at 1, 2, 3, etc. The lines drawnthrough these points perpendicular to 1/-7 are made equal in lengthto the corresponding distances 2-2, 3-3, etc., on the plan, because2-2 is the true width of…

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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