Abstract: A horizontal-chamber coke oven having doorways at opposite ends, each of which extend substantially the full height of the chamber. The doorways are formed with door frames or jambs sealingly engaged by respective doors having door plugs which project into the chamber beyond the door frames or jambs. According to the invention, the side of the closure turned toward the oven chamber is provided with a flexible and yieldable seal which surrounds a hot frame or heat-retentive body such that the temperature in the region of the closure door during filling of the chamber and coking is held above the condensate-forming temperature.

Abstract: The opening for charging a coking chamber of a coking oven is closed by closure means and a lock chamber is arranged outside the closure means for preventing any emissions from the coking chamber seeping past the closure means to pass to the outer atmosphere.

Abstract: A sealing closure for an opening of a coking oven includes a frame mounted on the coking oven about the opening, a door receivable in the frame with a clearance therefrom in a closing position, and an arrangement for sealing the clearance. The sealing arrangement consists of a sealing member including a rigid support element and a sealing element of a resiliently yieldable material mounted on a marginal portion of the support element and adapted to sealingly contact a contact surface of the frame in the closing position of the door. The support element is connected to the door for an adjustment of the position thereof, and is retained in a selected adjusted position. A marginal portion of the support element is received in an elongated recess and has longitudinally distributed projections which are accommodated in a plurality of cutouts in the sealing element, the cutouts extending from the recess to a sealing surface contacting the contact surface of the frame.

Abstract: A closure for an opening of a coking oven includes a door receivable in an opening of a circumferentially complete frame mounted on the coking oven, with a clearance therefrom. The clearance is sealed by a sealing member adjustably mounted on the door and contacting a contact surface of the frame in the closing position of the door. The contact surface of the frame and the sealing member are protected from deposition of volatile byproducts of the coking process thereon by an outwardly projecting circumferentially complete stepped ridge provided on the frame in between the open end of the opening and the contact surface of the frame. At least one groove may circumferentially surround the open end of the opening, and the door may have regions juxtaposable with the steps of the ridge and with the groove and having configurations complementary to the ridge and the groove to define a labyrinthine passage for the volatile byproducts between the open end and the contact surface of the frame.