Draw-knife

Gear cutting – milling – or planing – Planing – Means for cutting groove

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Details

407 71, 409308, 409340, 409345, B23D 1304

Patent

active

046261532

ABSTRACT:
A draw-knife for producing keyways and for profiling workpiece bores comprising a knife bar whose head portion carries a cutting member which comprises two knife plates arranged side by side in the same plane and being coaxially adjustable, and an immobile knife plate provided behind the latter in the drawing direction of the draw-knife. The cutting edge of the immobile knife plate bridges a gap between the inner ends of the cutting edges of the two adjustable knife plates. The length of the cutting front of the cutting member of the draw-knife is changeable thus allowing one sole tool to adapt to any desired width and fit of the desired grooves or profiles.

REFERENCES:
patent: 508982 (1893-11-01), Rolston
patent: 2154576 (1939-04-01), Morton
patent: 2646727 (1953-07-01), Waldrich
patent: 2744451 (1956-05-01), Lee
F 4151/49c Gm (FROMAG, Frondenberg/Ruhr)--Betrifft: Messerstange mit Messer.

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