Tool bits and method of shaping

Details Tool bits and method of shaping Tool bits and method of shaping

1989-05-23

1990-07-17

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Including arcuately oscillating tool-face

72406, B21K 510

Patent

active

049413392

ABSTRACT:
Grooves are formed in an insertion end of a working tool, such as a tool bit or a chisel bit by pivoting a grooving tool about a pivot axis extending perpendicularly to the axis of the insertion end. By pivoting the grooving tool about the pivot axis, it moves along the axial direction of the insertion end forming the grooves. A plurality of the grooving tools can be ganged together and moved by a single drive unit for simultaneously forming angularly spaced grooves in the insertion end.

REFERENCES:
patent: 685417 (1901-10-01), Williams
patent: 1231324 (1917-06-01), Arthur
patent: 4840519 (1989-06-01), Kleine

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