Conduit making machine, and method of making an article made the

Metal working – Method of mechanical manufacture – Obtaining plural composite product pieces from preassembled...

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Details

29 33K, 29200B, 29417, 29429, 29453, 29513, 113 1N, 138162, B23P 1700

Patent

active

039479471

ABSTRACT:
A machine is provided, for continuously making drainage conduit of two pieces, with various mechanisms for performing forming, punching, joining, sawing and ejecting functions, as material is carried through the machine.

REFERENCES:
patent: 2127618 (1938-08-01), Riemenschneider
patent: 2411011 (1946-11-01), Troiel
patent: 2840897 (1958-07-01), Ingalls
patent: 3038759 (1962-06-01), Tilgner
patent: 3249023 (1966-05-01), Toby
patent: 3296674 (1967-01-01), Meshulam
patent: 3410349 (1968-11-01), Troutman
patent: 3420032 (1969-01-01), Felt

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