Apparatus for stretching extruded lengths of metal

Details Apparatus for stretching extruded lengths of metal Apparatus for stretching extruded lengths of metal

Filed on

1976-11-18

Date issued

1978-03-21

Examiner

Lanham, C. W.

Patent Class

Metal deforming

SubClass

With use of control means energized in response to activator...

SubSubClass

Metal deforming by use of roller or roller-like tool element

Other Related Categories

72256, 72302, 72305, 72378, B21D 312, B21D 2504

Type

Patent

Status

active

Patent number

040796108

Description

ABSTRACT:
An apparatus for stretching an extruded length of metal comprises a plurality of sets of tailstock jaws mounted at fixed positions in line with and spaced from each other, and a set of headstock jaws mounted in line with the sets of tailstock jaws and movable towards and away from the sets of tailstock jaws by a motor. The sets of tailstock jaws are individually controlled by respective sensors which when energized emit a signal in response to the presence of the trailing end of an extruded length of metal travelling past the sets of tailstock jaws, and the sensor signal actuates closure of the associated tailstock jaws on the trailing end of the extruded length.

REFERENCES:
patent: 187957 (1877-03-01), Baldwin
patent: 2136538 (1938-11-01), Borwick
patent: 3739619 (1973-06-01), Follrath

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