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US Patent: 84,410
Dressing Metal Nuts
Improvement in Nut Planers
John T. Campbell - Altoona, PA

USPTO Classifications:
470/108, 470/206, 82/138

Tool Categories:
specialty machines : nut or bolt making machines
metalworking machines : metal planers


Not known to have been produced

James Dunn
John Shoemaker
William A. Steel
John Parker

Patent Dates:
Granted: Nov. 24, 1868

Patent Pictures:
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Henry Howson-patent attorney

My invention consists of certain mechanism, fully described hereafter, by which a number of nuts can be simultaneously faced and beveled. After this simultaneous facing and beveling of the whole of the nuts, the latter must have a flat surface formed on their tops. This is accomplished by the tool M, which, by a proper manipulation of the slides, can be brought to bear upon each nut in succession, so as to form the desired flat surface on the tops of the nuts, round the edges of the holes in the same. It would be needless to describe minutely the advantages of the above-described machine, as they will be apparent to all who, are familiar with machine-shops, in which large quantities of nuts are used, and in which their rapid completion, ready for use, is an important desideratum.

It will be understood that a number of nuts 'of the same size may be operated on simultaneously, and that the nuts, instead of being screwed on to the spindle, may be fitted loosely to the same, with appropriate' distance-pieces between-them, the series of nuts being confined between a shoulder, near one end of the spindle, and a nut on the other.

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