Industry : a magazine devoted to science, engineering, and the mechanic arts, especially on the Pacific Coast (1888)
San Francisco : Industrial Pub. Co. · leaf 114
104 PIPE-CUTTING AND SCEEW-THREA DING MACHINE. … PIPE-CUTTING AND SCREW-THREADING MACHINE. THE ARMSTRONG M'F'G. CO., NEW BRITAIN, CONN. The drawing above shows a very compact machine for cutting off, and making screw threads, on pipes from one to six inches diameter, an unusual range for machines of the kind. This is done with but two sets of…
Industrial arts · Technology
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