A low pressure casting machine having a fill line connected between a thermally insulated chamber and a refractory furnace. A solenoid valve is included in the fill line and is selectively opened to allow gravity to fill the thermally insulated chamber to a predetermined level with molten metal. The...http://www.google.fr/patents/US6513571?utm_source=gb-gplus-shareBrevet US6513571 - Apparatus for automatic refilling of a low pressure casting machine
Apparatus for automatic refilling of a low pressure casting machine
