Dispensing – Molten metal dispensing – Flow controllers or assists
Patent
1988-09-19
1989-06-20
McDowell, Robert
Dispensing
Molten metal dispensing
Flow controllers or assists
266236, B22D 3700
Patent
active
048402958
ABSTRACT:
A rotary pouring nozzle comprising a stationary component having a rotatable component sealingly engaged in it for rotation relative to the stationary component, has an interlocking connection between the components inside the stationary component which retains them in their working relationship. The stationary component has a flow aperture or apertures directed laterally of the rotational axis of the rotatable component with which a nozzle outlet in the rotatable component can be moved into and out of register by rotation of the rotatable component. In one embodiment an enlarged portion of the rotatable component trapped in a complementary recessed portion of the interior of the stationary component provides the interlocked connection, and inert gas supplied by way of gas permeable ring in the stationary component provides lubrication between the components. The stationary component may have non-circular locating engagement with the vessel to which the nozzle is fitted.
REFERENCES:
patent: 2698630 (1955-01-01), McShurley et al.
patent: 3651998 (1972-03-01), Rocher
patent: 3685706 (1972-08-01), Fehling
patent: 3760992 (1973-09-01), Bieri
patent: 4200210 (1980-04-01), Riegler et al.
Foseco International Limited
McDowell Robert
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