Insulated furnace roller and method of manufacture
AssigneeBricmanage, Inc.
InventorsFrancis H. Bricmont, Hugh B. Carr
Life of this patent
Estimating the term…
Abstract
A method of manufacturing an insulated furnace roller includes providing the roller with an insulating refractory castable between the spaced apart tires of the roller and between the outermost tires and the furnace walls, the castable being secured to an arbor of the roller by metal anchors having outer ends that terminate inwardly of the outer surface of the castable, and wherein between the tires and the castable spacer discs are provided and between openings formed by the discs and tires insulation is inserted, the arbor being also wrapped with insulation before the castable is formed on the arbor.
Claims11
A method of manufacturing a furnace roller for supporting a heated workpiece in a furnace, said roller including a rotatable arbor having internal means for receiving a coolant to cool the arbor and at least a pair of axially spaced apart tires secured to the arbor for rotation therewith, said tires including substantially equal radially extending portions for supporting the workpiece, said method comprising the steps of:
- securing anchoring means to the arbor in a manner to form radially outwardly projecting anchoring ends between an adjacent pair of tires and within the radially extending portions of said pair of tires,
- covering at least the outer ends of said anchoring ends with a coating material of a type that will provide a stress relieving space between said anchoring ends and a thermal resistant castable means when subject to an operating temperature of the furnace,
- covering said arbor with an insulating material,
- applying a covering of a spacer material and securing the spacer material to the radially extending portions of said pair of tires to substantially cover said sides, said spacer material being of the type that at said operating temperature of the furnace will provide a stress relieving space between said radially extending portions of said tires and said thermal resistant castable means,
- forming said thermal resistant castable means around the arbor between a pair of said tires and over said anchoring means out of a liquescent thermal resistant insulating material in a manner that the thermal resistant castable means is secured to the arbor by said anchoring means and extends a distance radially outwardly from the arbor at a substantial distance but less than the radially extending portions of said pair of tires.
Dependencies are inferred from the claim text.