US Patent: 28,400 - Pump-Log Hollow Auger


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 28,400

Hollow Auger
Pump-Log Hollow Auger

Patentees:

G. M. Nye (exact or similar names) - Elmira, NY

A. T. Haviland (exact or similar names) - Elmira, NY

USPTO Classifications:

408/204

Tool Categories:

woodworking machines : wood drilling and boring

woodworking tools : hand drills : drill bits : hollow bits

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

N. Cauldwell

S. B. Denton

Patent Dates:
Granted:	May 22, 1860

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin (dm)

Description:

The primary claim has to do with the four cutters which are alternately, and opposingly, inclined in order to divide the chips. Also, each cutter is broken into two planes, further breaking up the chips, with the goal of easing their passage up the spirals.

For a contrary view, see Wyckoff's patent (53722) of 1866.