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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 172

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 172
Hole for Set-Screw /Tapped liThreads Front Elevation ofRod, without Brass. J r1 >: fon through C- Z). ^oth ends will be cast from the same patterns. SCALE OF INCHES. 0 1 2 … Back Elevation of Brass }, (Page 169.) CHAPTER IX. EXAMPLES FOR PRACTICE. Figure 217 represents a simple example for prac-tice, which the student may draw the size of the en-graving, or he may draw it twice the size. It is a

Mechanical drawing

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