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)
—t^^^pcf J … EXAMPLES FOR PRACTICE. 2^^ To regulate the tension of the saw, the handwheel K is operated, which drives the pair of bevelgears J and I, the latter of which operates the threadedshaft H, whose upper end G connects with the slidewhich carries F. Within G is a spring to act as acushion to the slide,…
Mechanical drawing
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