Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 542
It consists of a hollow disk or cylinder, 12 inches diameter and 3 inches wide on the rim, with acircular opening in the centre of C inches diameter. This cylinder is inclosed on both sides, excepting thecentral opening, and is entirely open all round the rim. The <li-k is placed vertically on a…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
