Forming of materials by extrusion
AssigneeUnited Kingdom Atomic Energy Authority
InventorJohn A. Pardoe
Life of this patent
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Abstract
A construction of wheel suitable for apparatus for the continuous forming of materials by extrusion and which has an endless groove in its periphery, comprises forming the wheel in two abutting parts joined in a radial plane within the groove base width, the two parts being held in abutting relationship during use of the wheel in performing extrusion. The joining plane need not extend all the way to a driving shaft to which the wheel is secured for rotation, so providing a separation zone which can be used for cooling the wheel material.
Claims9
In apparatus for the continuous forming of materials by extrusion, a wheel member with an endless peripheral groove and comprising an assembly of two parts joined in a radial plane within the groove base width, at least one of the parts having a portion which abuts with the other part along the said joining plane, the amount of abuttment being limited to extending radially only part way to a driving shaft to which the wheel member is secured for rotation therewith, for providing an annular separation zone extending from the driving shaft periphery part way towards the groove of the wheel member, and means for holding the two wheel member parts in abutting position during rotation of the wheel member by the driving shaft for operation to perform extrusion.
Dependencies are inferred from the claim text.