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US Patent: 216,023
Improvement in Boring and Reaming Tools
Richard T. Crane - Chicago, IL

USPTO Classifications:
408/214, 408/218, 408/223, 408/233, 470/199, 81/441

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


Not known to have been produced

E. A. West
O. W. Bond

Patent Dates:
Applied: Feb. 27, 1879
Granted: Jun. 03, 1879

Patent Pictures:
USPTO pdf tiff
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Designed to bore and ream a hole of the appropriate size for a "metallic bush" (tap) for beer barrels. Also, it serves as a tap for threading on the bush, as well as a countersink to provide a seat for the bush's flange.

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