The metal worker's handy-book of receipts and processes : being a collection of chemical formulas and practical manipulations for the working of all the metals and alloys including the decoration and beautifying of articles manufactured therefrom, as well as their preservation (1890)
Brannt, William T. (William Theodore), 1844- · Philadelphia : H. Carey Baird & Co. ; London : Sampson Low, Marston, Searle & Rivington · leaf 265
ront, and above it is placed a reservoir of one of the liquids above named, from which a slender jet of the liquid is allowed to dribble upon the top of the brush. In order to protect the operator against the water projected by the rapid motion, there is fixed to the top of the frame a small… … Fig. ,8. Through an outlet provided in one of the angles of the trough a gum tube conveys the waste liquid to a reservoir below. The above-described hand and lathe scratch-brushes are made of wire of various gauges, from coarse to very fine, according to their intended uses. Scratch-brushes of spun…
Metal-work · Metals
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
