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Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1889)

Rose, Joshua · Philaelphia, H.C. Baird & co.; [etc., etc.] · leaf 109

An illustration from Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers, 1889, leaf 109
This gives to the mind a clear idea of loS MECHANICAL DRAWING SELF-TAUGHT. the various views and positions; but it possesses somedisadvantages: thus, if position i is a side elevation orview of the piece, as it stands when in place of themachine, then E is naturally the bottom member; butit is… … Fig. 146. to show how one view is derived from the other, anddenote corresponding parts, then these dotted linesmust be drawn across the face of the drawino- makin^rit less distinct; thus the dotted lines connecting stemE in position i to E in position 3, pass across the facesof both A and B of…

Mechanical drawing

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