Self-decoupling tap and die holder

Details Self-decoupling tap and die holder Self-decoupling tap and die holder

1977-07-05

1978-04-04

Combs, E. M.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having inversely angled cutting edge

10 89F, 10141H, 408139, 408141, 408142, B23G 512, B23G 516

Patent

active

040818730

ABSTRACT:
The holder is intended for fixed application to the tail stock of a lathe, or equivalent machine tool, to optionally mount a die or tap for externally or internally threading a workpiece carried on the rotating head-stock end of such machine tool. Thus mounted and adjustably pre-set, the holder automatically decouples operationally from the workpiece after a predetermined axial length of threading has been cut on the work part, thus causing the latter to rotatively overrun the tap or die on the holder.

REFERENCES:
patent: 713004 (1902-11-01), Hunter
patent: 770966 (1904-09-01), Hunter
patent: 3135980 (1964-06-01), Swanson et al.
patent: 3189923 (1965-06-01), Smyth
patent: 3214773 (1965-11-01), Benjamin et al.
patent: 3305882 (1967-02-01), Rodier
patent: 3829230 (1974-08-01), Johnson

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