Milling machine system

Gear cutting – milling – or planing – Milling – Templet – tracer – or cutter

Patent

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Details

137270, 251 3, B23Q 3516

Patent

active

042655765

ABSTRACT:
A multiple-mode hydraulic tracer valve which is convertible from mode to mode by the use of a shiftable stylus and a transmission whose locus can be shifted relative to the spool valves of the tracer valve without changing the relative settings between the spools and the sleeves of the spool valves.

REFERENCES:
patent: 2753145 (1956-07-01), Rosebrook
patent: 2835466 (1958-05-01), Rosebrook
patent: 3186425 (1965-06-01), Weaver
patent: 3459402 (1969-08-01), Weaver
patent: 3620499 (1971-11-01), Rombeck

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