Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – For extrusion or injection type shaping means
Patent
1976-06-18
1977-09-27
Baldwin, RobertD.
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
For extrusion or injection type shaping means
425463, 425464, D01D 300
Patent
active
040508668
ABSTRACT:
An apparatus for melt-spinning a polymer such as a polyamide or polyester has a heating jacket provided with a cavity which accommodates a spinning assembly. Preferably, the spinning assembly is exchangeable in the jacket from above and includes a housing adapted to contain a molten polymer and a spinnerette plate near one end thereof. The opposite end of the housing is closed with a lid which extends partially within the housing and partially outside the housing. That portion of the lid which extends outside the housing has a peripheral surface which slopes radially outwardly from the wall of the housing in the direction moving longitudinally from the housing. In a cylindrical vessel the sloping portion of the lid is frusto-conically shaped. The jacket is provided with a portion of gradually increasing diameter to accommodate the lid. A clamping member having diametrically opposite radially outwardly extending ears has a bore threaded in one direction and aligned with a bore in the lid threaded in the opposite direction. A threaded rod is threadably secured in the bore of the clamp and the bore of the lid to secure the two together. An annular groove is provided in the wall of the jacket and the ears on the clamping member are disposed in the groove by rotation of the assembly in the jacket to lock the assembly of clamp, lid and housing in the cavity of the jacket.
REFERENCES:
patent: 2118094 (1938-05-01), McDonough et al.
patent: 3500499 (1970-03-01), Goossens
Akzo N.V.
Baldwin RobertD.
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