Boring tool

Details Boring tool Boring tool

1978-04-14

1979-12-04

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Tool-support with means to permit positioning of the tool...

Tool having stepped cutting edges

408223, B23B 5100, B23B 29034

Patent

active

041769902

ABSTRACT:
A boring tool having asymmetric disposition of cutting edges providing smooth, balanced cutting permitting the use of a lighter tool for a given job and having proportions providing a range of lateral adjustment for increasing hole size when desired while preserving smooth cutting characteristics; in simplest embodiment the tool comprises a unitary, substantially rectangular shape block for mounting a pilot bar with a cutting edge on each side of the axis, one cutting edge being closer to the axis and being longer than the other, the two cutting edges located for making contiguous cuts; on one side a relieved portion adjacent one cutting edge (on the outboard end of the inboard cutting edge) automatically engages the work when positioned more inboard as result of lateral resetting of the tool to bore a larger hole than the holesize for which nominally designed.

REFERENCES:
patent: 918003 (1909-04-01), Campbell
patent: 3548687 (1970-12-01), Holloway
patent: 3572183 (1971-03-01), Mellone
patent: 3765789 (1973-10-01), Hougen

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