US Patent: 342,218 - Expanding Reamer


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US Patent: 342,218

Expanding Reamer

Patentee:

William Miller (exact or similar names) - Woonsocket, Providence County, RI

USPTO Classifications:

407/45, 408/164, 408/168

Tool Categories:

metalworking machines : drilling and boring : drill bits : reamers

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Mar. 27, 1886
Granted:	May 18, 1886

Patent Pictures:

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Description:

Abstract:

My invention relates to expanding-reamers and it consists,essentially,of a metallic hollow to shell or case adapted to receive a right-and-left-threaded screw,which has mounted thereon two nuts, each having a series of narrow inclined grooves or slots adapted to receive a series of peculiarly shaped cutters, the said shell being farther provided with a series of openings for said cutters and also having an exterior threaded portion adapted to receive adjusting-nuts.

Claim:

A reamer consisting of a suitable arbor, a screw contained therein, grooved nuts on said screw, and cutters adapted to be seated in the grooves in said nuts and adjustable radially thereby.