Lapping tools

Details Lapping tools Lapping tools

1982-03-23

1984-01-10

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51338, B24B 2500

Patent

active

044246480

ABSTRACT:
A tool for lapping internal surfaces of holes.
Lapping tools conventionally have an expandable working portion for variable diameter operation. Known tools tend to expand in a barrel shape leading to inaccurate lapping. The invention seeks to avoid this by providing a working portion of a tubular tool with slots in a plurality of rows each having several slots. Slots in each row are staggered relative to those in adjacent rows.

REFERENCES:
patent: 1452769 (1923-04-01), Warner
patent: 1528653 (1925-03-01), Butler
patent: 2044474 (1936-06-01), Groetchen
patent: 2146195 (1939-02-01), Schultz
patent: 2694277 (1954-11-01), Speck
patent: 2831297 (1958-04-01), Skran
patent: 3717956 (1973-02-01), Keutts

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