Grinding heads for grinding machines

Details Grinding heads for grinding machines Grinding heads for grinding machines

1979-03-02

1981-06-30

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51340, 51346, 51350, 51DIG6, B24B 500

Patent

active

042755301

ABSTRACT:
A grinding head has at least one expandable grinding tube mounted on an expansion cone. The expansion cone is carried by, and is rotatable with, an expansion rod which is coupled for rotation with a driven part of the head. The expansion rod and cone are movable by means of a ram to cause expansion and contraction of the grinding tube. The connection between the ram and expansion cone via the expansion rod includes helical coupling means whereby to cause a step-down in the effective stroke of the ram as applied to the expansion cone, which enables high accuracy in the expansion and contraction of the grinding tube.

REFERENCES:
patent: 1452769 (1923-04-01), Warner
patent: 2044474 (1936-06-01), Groetchen
patent: 2268479 (1941-12-01), Gjertsen
patent: 2411545 (1946-11-01), Kline
patent: 2702446 (1955-02-01), Johnson
patent: 3605348 (1971-09-01), McClure

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