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New Nut Tapping Machine
We give herewith perspective and plan views, also a sec tional elevation, of a new and very efficient nnt tapping ma chine made by Messrs. Howard Brothers, Fredonia, N. Y. This machine has seven spindles, and its capacity is 8,000 nnts per day of ten hours. The efficiency of this machine is snfficiently attested by the fact that a large number of the most important railway corporations, car manufacturers, locomotive works, machine shops, agricultural tool manufacturers, iron works, etc., etc.,doi:10.1038/scientificamerican07011882-8 fatcat:6bxksavxjvdypckxl6zxqm7tz4