Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 685
The sections are connected together, in case of need, by double tie beams, which can be readilyslipped out, by withdrawing the nuts and screws by which they are secured. On the cross beams D D, Fig. 1737, on each side is a rack and pawl, enabling the chock blocks E to bereadily moved, and secured…
Mechanical engineering
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
