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)
in corresponding positionsto draw in the other half of the ellipse. The length ofcurve drawn from each centre is denoted by the dottedlines radiating from that centre ; thus, from k the partfrom r to i- is drawn ; from h that part from 1^ to y. Atthe ends the respective centres v are used for the… … which are two grooves, represented by the broad blacklines, one of which is at a right angle to the other.In these grooves are closely fitted two sliding blocks,carrying pivots E F, which may be fastened to thesliding blocks, while leaving them free to slide in thegrooves at any adjusted distance…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
