B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/82
B22D 37/00 (2006.01) B22D 41/26 (2006.01) B22D 41/28 (2006.01)
Patent
CA 1221813
ABSTRACT Valve plates for sliding gate valves have constructions exemplified by Fig. 1 in which the refrac- tory components are mounted in metal trays. The valve plate (18) has two refractory plate members (20, 21) bedded on cement (19) in the bottom of the tray (17); plate member (20) is orificed (at 14) to convey molten metal to an undermounted nozzle (16), which is joined to the plate member (2) by a male and female structure (28) such that the male part (29) of the plate member (20) protects the vulnerable inlet end of the nozzle (16). The plate member (20) - but not plate member (21) - is designed to be contacted in service by molten metal and is replaceably secured in the tray (17) which has apertures (32) for access of tooling used to displace the plate member (20) out of the tray when replacement of the palte member (20) is necessary.
425077
Borden Ladner Gervais Llp
Uss Engineers And Consultants Inc.
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