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)
Fig. 312—Governor. at full speed is enormous, the spring to counteract ithaving to sustain from two to three thousand pounds.Under these circumstances, as might be expected, theregulation is remarkably good. This is a very impor- . iXICAL BRA llIXG SELF- TAUGHT. icnsideration in an engine working… … Fig. 313—Section of Pillow Block. the crank wheel has a circular groove around its out-side, and that a corresponding groove in the crankwheel projects over this groove. From this lattergroove an oil hole of liberal size extends, as shown, tothe surface of the crank-pin. Any oil placed at theupper…
Mechanical drawing
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