Abstract: A coking installation has a longitudinal succession of coking chambers having respective coke sides opening transversely above a bench level above ground level and an outer rail extending longitudinally along and adjacent the coke sides of the chambers. A quenching-car track extends longitudinally adjacent the coke sides between the outer rail and the chambers and a main gangway runs longitudinally at the bench level along the coke sides of the chambers between same and the quenching-car track. An inner rail extends longitudinally between the car track and the gangway and a portal support rides on and moves along the inner and outer tracks. This support carries door-removing equipment, door-cleaning equipement, doorframe-cleaning equipment, and a coke guide. A drive on the portal support displaces the equipement and guide transversely thereon between an extended position extending across the main gangway and engaging one of the coking chambers and a retracted position substantially clear of the main gangway.

Abstract: A method of and an apparatus for cleaning the interiors of risers of coking chambers of a coke oven wherein a head provided with scrapers, hydraulic cleaning means or oxygen supply for burning off deposits, is introduced laterally into the coking furnace below the riser and caused to elevate through the riser. Thereafter the head is lowered and the apparatus withdrawn laterally through the coking chamber.

Abstract: Coke is charged into a coke oven chamber by positioning a filling hopper over an opening in the roof of the chamber and evacuating the chamber. A filling tube is lowered from the hopper to the bottom of the chamber and coal is fed from the hopper through the filling tube into the chamber while gas is evacuated from the latter during the filling. The filling tube is raised as the chamber is filled with coal through the tube and the velocity with which the tube is raised is controlled as a function of the subatmospheric pressure generated in the chamber by the evacuation of gas therefrom. Alternatively, the subatmospheric pressure generated in the chamber is controlled as a function of the velocity with which the tube is raised.

Abstract: A main carriage is displaceable in a transport direction along rails next to the unloading side of a battery of coking chambers. A substantially smaller auxiliary frame is displaceable on the main frame in the same transport direction as the main frame and carries several operating units including a door-removing device, a doorframe cleaner and a guide for conducting coke pushed from the opposite side out of the chamber into a quenching wagon next to the battery. In addition a door cleaner may be provided on the main frame together with a chain conveyor or the like having one flight extending on the main frame in its transport direction next to the battery and another flight extending across the main frame perpendicular to the transport direction so as to empty into the quenching car.