Car bottom furnace
AssigneeIndustronics, Inc.
InventorLawrence C. Lyman
Life of this patent
Estimating the term…
Abstract
A high temperature car bottom furnace is provided with an improved seal on the mating closing surfaces. The side walls of the furnace chamber have tapered bottom surfaces sloping toward the end wall of the furnace chamber. The moving furnace floor is provided with complementary tapered sealing surfaces mating with the bottom surfaces of the side wall. A resilient compressible insulating layer is secured therebetween for sealing the chamber along each side wall. This arrangement not only reduces the abrasive contact between the moving surface and the compressible insulating layer but also facilitates non-abrasive closing action by the door wall of the furnace.
Claims8
In a high temperature car bottom furnace having a furnace chamber including a pair of side walls and an end wall, and a car mounted furnace floor movable relative to said chamber between an open position spaced from said walls and a closed position operatively engaging said walls, the combination wherein said side walls have tapered bottom surfaces sloping toward said end wall, said surface floor has tapered sealing surfaces complementary to said bottom surfaces for mating with the bottom surfaces of the side walls to close the bottom of said furnace chamber, the sealing surfaces of said floor being in spaced confronting nonsealing relationship to said bottom surfaces during a major portion of the floor travel into its closed position, and a resilient compressible insulating layer secured to at least one of the mating surfaces along the full extent of each side wall for compressive engagement between said mating surfaces to seal said chamber along said side walls as the floor reaches its closed position.
Dependencies are inferred from the claim text.