Patent ID: 8640635

Claim:
A coke oven comprising: a gas source; and a corbel comprising a first tier having first blocks, each of the first blocks comprising a first, substantially horizontal aperture extending through the first block from a front surface to a back surface and running lengthwise through the first block and a second, substantially vertical aperture formed through a top surface of the block, extending into the first horizontal aperture and extending upwardly from the first horizontal aperture and defining an initial portion of a substantially vertical gas line, the first blocks being arranged on a substantially planar surface to align the respective first apertures running lengthwise through the first blocks to define a first, substantially horizontal passageway in communication with the gas source; and a second tier having second blocks, each of the second blocks comprising a third, substantially vertical aperture extending through the second block from a top surface to a bottom surface, the second blocks being disposed above the first tier of blocks to align the third aperture of each of the second blocks with the second aperture of the first blocks to form a second passageway forming a substantially vertical gas line.