Adjustable charging hole closure for charging the coking oven chambers of a coking oven battery

An adjustable chargehole closure for insertion into a charging aperture for charging a coke oven chamber of a coke oven battery, the closure comprising:

• a circumferentially extending outer frame to be structurally integrated by mortar into the top of the coke oven chamber and having a circumferentially extending inner rim being beveled;
• a circumferentially extending inner frame, to be inserted into the outer frame, having a circumferentially extending inner rim being beveled and a circumferentially extending outer rim being beveled;
• and
• a chargehole lid to be supported by the inner frame having a circumferentially extending outer rim being beveled,
• wherein the inner frame is twistable both relative to the outer frame and the chargehole lid, and
• wherein a geometrical center of an outer circumference of the inner frame is offset from a geometrical center of an inner circumference of the inner frame, wherein an aperture arranged in the inner frame, and destined for the chargehole lid, and the chargehole lid are capable of being shifted in a horizontal plane when twisting the inner frame.