Dart sharpener

Details Dart sharpener Dart sharpener

1992-07-24

1993-04-06

Rose, Robert A.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51161, 51214, 51232, B24B 1916

Patent

active

051992248

ABSTRACT:
An apparatus for sharpening a dart includes a sharpening stone and a dart holder. The apparatus simultaneously translates the dart to be sharpened across the stone while rotating it against the stone in a direction opposed to the translation. An accurate, precision point, superior to any provided by hand sharpening, is imparted to on the dart because it is held, in the apparatus, at a constant angle with respect to the sharpening stone as it is being simultaneously rotated and translated thereacross.

REFERENCES:
patent: 426716 (1890-04-01), Drake
patent: 431517 (1890-07-01), Harker
patent: 478608 (1892-07-01), Keist
patent: 547151 (1895-10-01), Moseley
patent: 740962 (1903-10-01), Wilcox
patent: 1411713 (1922-04-01), Downing

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