Boring tool with floating blades

Details Boring tool with floating blades Boring tool with floating blades

1980-02-28

1981-09-15

Hinson, Harrison L.

Cutting by use of rotating axially moving tool

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

To move radially

408 13, 408158, B23B 5100, B23B 3906

Patent

active

042894310

ABSTRACT:
A boring tool comprising a tool head provided with a slot extending transverse to the axis of the tool head in which a pair of opposite cutting knives are guided movable in longitudinal direction of the slot. A spacer is guided in the tool head movable between a first and a second position. In the first position the spacer is located between inner ends of the cutting knives which are spring biased to engage the spacer to be movable with the latter in the longitudinal direction of the slot while holding the cutting knives in a cutting position. In the second position the spacer frees the cutting knives to move under the influence of the biasing springs toward each other to an inactive position.

REFERENCES:
patent: 655600 (1900-08-01), Brown et al.
patent: 1135057 (1915-04-01), Schultis
patent: 2273228 (1942-02-01), Smith
patent: 2990730 (1961-07-01), Pougnand
patent: 3011368 (1961-12-01), Hayes
patent: 3246545 (1966-04-01), Shugars

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