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US Patent: 101,249
Dressing Nuts
Improvement in Lathes for Squared Nuts, etc.
James Flower - Detroit, MI

USPTO Classifications:
269/142, 269/269, 269/73, 409/303, 470/107

Tool Categories:
specialty machines : nut or bolt making machines
metalworking machines : metal lathes : metal lathe accessories


Not known to have been produced

H. F. Eberts
H. S. Sprague
James Thierey

Patent Dates:
Granted: Mar. 29, 1870

Patent Pictures:
USPTO pdf tiff
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Thomas S. Sprague - patent attorney

The nature of this invention relates to the construction of a device to he attached to and operating in connection with a lathe for squaring-the sides of nuts and similar articles. It consists in the peculiar construction and arrangement, on a bed-plate transversely secured on the ways .of a lathe, of certain adjustable standards, sustaining an adjustable center for the work to be faced, and an adjustable chuck in which the work is secured, and in combination therewith, an index-plate, so divided off as to present as many faces of the work to the action of a half-lipped drill, rotating with the head-spindle of the lathe, as may be desired, speedily finishing each facet in uniform size with the rest, and effecting a great .saving in files, time, and labor, besides securing greater uniformity than is possible where, such work is done by hand.

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