Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 601
e or basis of the frame 0 0, which is fastened on to the top of the circular table A by screws,as at//. The upper end of the shaft R is connected to the sliding-frame P by the springs m n, Fig.3256. The lowermost of these springs serves to lift it, and the upper one, by means of the thumb-screw o,… … The removing of the finished screw from the tubes a is effected by the aid of the same hoop U that isconcerned in the depressing and raising of the screw-driver. S, Figs. 3255 and 3256, is a stationarytubular rod placed vertically, which receives within it a small sliding-rod p\ there is a slot…
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-graphophonepaten10unit-577-389.webp)
