Patent ID: 6435867
Filing Date: 2002-08-20
Classification: C21D,F27D,Y10T

Abstract:
A cast tire for use in a furnace roller to support and advance a workpiece in a furnace, said cast tire including:an outer rim portion having an annular peripheral tire face to engage and support a workpiece during conveyance thereof in a heated chamber of a furnace; and a continuous web portion having an inner most annular surface contiguous with said outer rim portion, said inner most annular surface defining a load-bearing seat for load-bearing support by an axle, said continuous web portion having oppositely directed radial face surfaces forming boundaries of angularly spaced pockets bounded by radial edges generally perpendicular to said inner most annular surface, said radial edges being elongated to form moment arms to transmit torque from an applied force by an axle to rotate said continuous web portion and said outer rim portion for conveying a workpiece.