Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 319
dJLl-bLL.1 J J .1 L ri£--^j t-^SBSS^W! M … Scale.—1 foot=l inch. As it is very important that but very little yarn should be wound at the nose or upper part of eachlayer of the cop, the cam i2 has an angular projection x, (see Fig. 921,) which as soon as the cam hascompleted its action in the lever i2, shall in its turn depress the lever so…
Mechanical engineering · Mechanics · Engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-28-10.webp)
