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US Patent: 65,942
Grinding and Polishing Machine
Thomas Prosser - New York, NY

USPTO Classifications:
451/394, 451/411

Tool Categories:
specialty machines : polishing and buffing machinery
metalworking machines : grinders : cylindrical grinders


Not known to have been produced

J. W. Coombs
G. W. Reed

Patent Dates:
Granted: Jun. 18, 1867

Patent Pictures:
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The nature of my invention consists, firstly, in a novel combination of a revolving grinding-wheel and carriage or-vise for holding the work to be ground, the latter having, in addition to a reciprocating motion across the periphery of the grinder, and in addition to the feed,, an adjustability on the bed that carries it, to give it a parallel or angular set relatively to the axis of the grinder and, further, consists in a like combination in which the carriage is provided with a revolving mandrel that serves to rotate the work; and of a similar combination made to automatically establish the feed of the work to the grinder, or latter to the former likewise, in a novel combination, with a reciprocating carriage, of an adjustable friction-wheel contrivance and feed connecting devices, to facilitate change of the feed from an automatic to a hand one; and in a peculiar double wheel pawl escapement feeding motion set in action by the reciprocating carriage.

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