Abstract: A coke oven door construction, adaptable for either the pusher side or the coke side of the oven, has a diaphragm arranged so as to exert an even pressure all around the door and associated jamb when the door is locked in the jamb by a suitable locking device. After the door has been locked in place, air is connected to the bottom of the door so as to permit injection of a mixture of air and a suitable anti-stick agent all around the door diaphragm and onto the sealing surface of the associated jamb. The anti-stick agent keeps carbon and other foreign matter from sticking to the diaphragm and jamb surfaces. Further, if a fire occurs between the sealing surfaces, it can be extinguished by connecting the air to the doors. The air mixed with the anti-stick agent is preferably preheated before it reaches the jamb surface so as to prevent warping of the jambs.

Abstract: An upstanding support is provided and a carriage is mounted on the support for vertical reciprocation between predetermined upper and lower limit positions on the support. A jamb cleaning head is mounted on the carriage for vertical reciprocation therewith along and for cleaning an adjacent upstanding jamb portion. A support structure stationarily positioned relative to an associated coke oven jamb and mounting structure is provided for supporting the upstanding support relative to the stationary support structure for vertical shifting relative thereto. First drive structure is connected between the support and the carriage for driving the latter along the former between the aforementioned limit positions and reversible second drive structure is connected between the stationary support structure and the upstanding support for reversibly variably shifting the upstanding support relative to the stationary support structure.