Boring device

Details Boring device Boring device

1980-03-18

1982-08-10

Briggs, William R.

Cutting by use of rotating axially moving tool

Tool-support with means to move tool relative to tool-support

To move radially

408157, 408158, 408173, 408178, B73B 9034

Patent

active

043435769

ABSTRACT:
The present invention relates to a boring device for boring internal surfaces of hollow workpieces of the kind which comprises radially adjustable insert-provided holders, there being provided pressure means, such as steering pins so as to effect radial adjustment of the insert holder from an outer active working position to an inactive position. The radial adjustment occurs by having each insert holder via said steering pins supported against a bushing of non-circular cross section actuatable by a shaft member centered within the bushing, said bushing upon its rotation effecting said radial adjustment.

REFERENCES:
patent: 2990730 (1961-07-01), Pougland
patent: 2998737 (1961-09-01), Yocus et al.
patent: 3200673 (1965-08-01), Pfeifer
patent: 3203453 (1965-08-01), Bergstrom
patent: 3274861 (1966-09-01), Czubak
patent: 3391585 (1968-07-01), Griswold et al.
patent: 3918826 (1975-11-01), Friedline
patent: 4140432 (1979-02-01), Heule
patent: 4195957 (1980-04-01), Wittkopp et al.

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