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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 238

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 238
C between thefoci is equal to two of them, and the distance of eitherfocus from the nearest extremity of the major axis isequal to one, and from the more remote extremity isequal to three of these parts. CHAPTER XII. PLOTTING MECHANICAL MOTIONS. Let it be required to find how much motion… … around by the shaft, it is evident that the axis of itsmotion will be the axis A of the shaft. Then from Aas a centre, and with radius from A to C, we draw thedotted circle D, and from E to F will be the amountof motion of the rod in the direction of the arrow. (223) 224 MECHANICAL DRAWING…

Mechanical drawing

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