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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 496

An illustration from 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, leaf 496
ich is provided with a worm. This end is also furnished with a female screw, in which fits the so-called bind¬ ing screw D. The latter consists of a steel rod, provided on one end with a worm about i*4 inches long and on the other with a disk and handle. The length of the binding screw generally… … chuck as well as the sheet-metal to be spun must be provided with an aperture for the binding screw to pass through. The chuck and disk of sheet-metal before the commencement of spinning are shown in I, Fig. 62. The spinning is done with tools of various shapes resembling burnishers; they have…

Metal-work · Metals

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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