Abstract: In a hot blast stove, a shell structure comprises a checker brick chamber and a common upper portion of the shell embraces a combustion chamber having a length substantially less than the shell structure that is mounted contiguously alongside of and externally to the shell. A refractory lined dome or envelope covers both the checker brick chamber and combustion chamber. Means is provided that supports the combustion chamber and that acts responsively to thermal movement of the combustion chamber; such means existing independently of said shell. In another instance the shell and combustion chamber are self-supporting.

Abstract: A shed encloses a coke wharf onto which hot coke is pushed, the coke cake passing through a coke guide into the shed. Doors in the shed are disposed opposite the coke oven chambers and each door is openable when a coke guide is positioned at an oven to be pushed. Deflector means are located inside the shed at each door that break up and spread the coke onto the coke wharf. Fumes that evolve from the coke on the wharf as it is being quenched are collected in a main. An auxiliary collecting main and hood structure are located above the coke oven doors, whereby effluent arising from coke in the chambers after the oven doors are removed are collected in the auxiliary collecting main and conducted thence into the collecting main.