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 480
work and small journal bearings. Figs. 56 and 57 show a form of lap. It is a cast-iron cylinder, or sleeve, split nearly in two, as shown, and fitted with lugs and a thumb-screw to admit of changing the size of the sleeve. It will be noticed that the cast-iron sleeve comes entirely together at a,… … brushed with lead and charged with a flux of emery and oil, the thumb-screw is loosened, and the lap applied to the object to be ground, when it is running in the lathe at a speed of 300 lineal feet per minute. For some work the cast-iron cylinder may be made with a hinge opposite the thumb-screw,…
Metal-work · Metals
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
