Sliding gate nozzle for vessels used for pouring metals

Claim 1

A sliding gate assembly for a vessel for pouring metals having replaceable refractory wearing parts comprising a casing having an outlet, an entry bush mounted in said outlet; a stationary bedplate fixed to said casing, said bedplate having first and second longitudinal ends, said first end being longer than said second end, and a bedplate orifice located at the junction of said first and second ends and thus being offset from the longitudinal center of the bedplate, said bedplate orifice being aligned with said outlet; a sliding plate positioned adjacent said bedplate for controlling the flow of metal through said bedplate orifice, said sliding plate also having first and second longitudinal ends, said first end being longer than said second end, a sliding plate orifice located at the junction of said first and second ends and thus being offset from the longitudinal center of said sliding plate, and an exit bush mounted on said Sliding plate aligned with said sliding plate orifice; said first ends of said plates having sealing faces; means for moving said sliding plate to either a first position wherein said two orifices are in alignment or to a second position wherein said bedplate orifice is sealed by said first end of said sliding plate and said sliding plate orifice is sealed by said first end of said bedplate; a boss at the orifice in each of said plates located on the side facing away from the sealing face of the plate, said entry bush having a socket for receiving the boss on said bedplate and said exit bush having a socket for receiving the boss on said sliding plate; said entry and exit bushes having the same shape and dimensions so as to be interchangeable with each other; and said sliding plate and said bed plate having the same shape and dimensions so as to be interchangeable with each other.