Control for regenerators of a horizontal coke oven

In a horizontal coke oven having vertical regenerators for heat exchange between combustion supporting gases and burnt gases, a sole flue communicating with said vertical regenerators for the supply and removal of gaseous media, and a stationary horizontal partition having ports therein for the conduction of the gaseous media between the sole flue and various sections of said vertical regenerators which include fillings of checkerbricks having longitudinal and transverse walls that bound continuous passages of oblong cross section, the outer walls of said checkerbricks having projecting ribs engageable with the projections of the checkerbricks above and below, the improvement comprising a plurality of plates arranged end-to-end in a gaseous controlling relation below said stationary horizontal partition with adjacent ends of the plates being normally spaced from each other, each of said plates being associated with a different one of discrete various sections of the vertical regenerators, said plates having portal openings contiguous with the stationary ports of said horizontal partition, ribs depending from the lowermost checkerbrick in each section for engaging the top surface of said stationary horizontal partition, said plates being independently adjustable in the direction of the length of the sole flues for determining the extent to which said ports of the stationary horizontal partition are masked by said plates, and means extending downwardly from the underside of said plurality of plates for separate adjustable movement thereof.