large to admit the head of a rat, and over it is a glide or cross- as well as the yield of charcoal. The condensed products con- this bed is a very strong, thoroughly braced superstructure, head, A, having fixed to it two knives, B, guided through which receives the immediate strain of the lifting… … a pulley, H, to the yoke or whif- volves the hook,throwing its long fletree of a pair of oxen or horses. arm under the cam, F, which, as throws the hook, H, back into place and The operation can be readily understood from the above ever firmly held in the soil, must yield to it. The machine…
Internet Archive · Public domain (published before 1931). Free to use for anything.