B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
205/11
B21C 25/08 (2006.01)
Patent
CA 2010305
ABSTRACT An apparatus for extruding stepped extrusions, e.g. of aluminium or aluminium alloy, comprises a die holder carrying a major die, and a split minor die arranged for abutment with the downstream side of the major die and having its two halves mounted on respective parts of a split holder. The holder parts are movable towards and away from the line of extrusion to put together and separate the halves of the minor die. The die holder and the container of an extruder and movable towards each other to press the minor die the major die and the downstream face of the container into sealing engagement about the die apertures, and are movable away from each other to permit the extrusion to be sheared off between the container and the major die.
Crellin Robert Lancaster
Ostle William Lancaster
Wellman Keith Reginald
Alcan International Limited
Fetherstonhaugh & Co.
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