Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 139
132 JACK, TRAVERSING SCREW. JACK, TRAVERSING SCREW. Figs. 2415and 2416 exhibit a side view and plan of thescrew modification. The screw-jack A is boltedto the plank C; at the other end of the plank isfixed the rack G, in which the toe of the strut Fadvances as the screw B is elevated; the…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-307-126.webp)
