Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 759
The double screwing machine by Messrs. Randolph, Elliot, and Co., of Glasgow, is a much morecomplete and useful workshop auxiliary than the last, and has, besides, the merit of great compactness,Fig. 3467 is a side elevation of the machine, Fig. 3469 is a ground plan, Fig. 3468 is an elevation of…
Mechanical engineering
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