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US Patent: 298,248
Combined Drill and Countersink
Albert J. Smart - Greenfield, MA

USPTO Classifications:
279/44, 279/83, 408/193

Tool Categories:
woodworking tools : hand drills : drill bits : countersinks

Wiley & Russell Manufacturing Co. - Greenfield, MA

Wiley & Russell Manufacturing Co. - Greenfield, MA

William H. Nims
J. H. Sanderson
Chauncey Bryant
Edw. H. Downs
F. W. Howard

Patent Dates:
Applied: Dec. 31, 1883
Granted: May 06, 1884

Patent Pictures: [ 1 | 2 ]
Albert J. Smart patent May 6, 1884
USPTO pdf tiff
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The patent includes the holder for a drill, with a slot for the tapered cutter which cuts the countersink and also clamps the drill bit in place.

The principle appears in the LIGHTNING COMBINED DRILL AND COUNTERSINK produced by Wiley and Russell.

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