Abstract The chamber opening for a coke oven is closed by a door having side walls that support a peripheral seal adapted to abut against a frame surrounding the chamber opening. Extending from the side walls of the door at spaced locations, are bolt-type fasteners with hooked ends that support the seal by frictional contact with the side walls of the door. A second form of fastening means, at other spaced locations about the periphery of the door, includes a shaft that rotably positions a cam plate into an abutting relation with the rear edge of the seal and positions its sealing edge by rotation of the cam plate. The shaft also supports a circular plate for clamping the seal against the side wall of the door. The centers of the cam plate and the circular plate coincide with the longitudinal axis of the shaft. The cam surface has a spiral shape which is self-locking with respect to rotation of the shaft to resist the forces acting on the seal.
Inventors
👤 Kurt Ernst Dix
👤 Jurgen Freisewinkel
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-09 06:11
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
198 words
The combination with a coke oven door having a peripheral seal defining an edge surface adapted to abut against a frame surrounding an opening leading into a coke oven chamber, and fastening means extending from said door for supporting said seal in frictional engagement with side walls of said door, of apparatus at spaced locations about the periphery of the door for positioning said edge surface of the peripheral seal relative to said door comprising, a shaft including a threaded end for support by said door, a cam plate secured to said shaft for an abutting relation with a rear edge of said seal opposite to said edge surface, said cam plate having a cam surface generated from a spiral form with the center thereof lying along the longitudinal axis of said shaft in such a manner that the cam plate is self-locking with respect to unwanted rotation of said shaft by forces transmitted from said edge surface of the seal upon said cam plate, and a circular plate supported by said shaft for clamping said seal against said door, the centers of said cam plate and said circular plate lie along the longitudinal axis of said shaft.
Claim 2
Dependent Claim
198 words
The combination with a coke oven door having a peripheral seal defining an edge surface adapted to abut against a frame surrounding an opening leading into a coke oven chamber, and fastening means extending from said door for supporting said seal in frictional engagement with side walls of said door, of apparatus at spaced locations about the periphery of the door for positioning said edge surface of the peripheral seal relative to said door comprising, a shaft including a threaded end for support by said door, a cam plate secured to said shaft for an abutting relation with a rear edge of said seal opposite to said edge surface, said cam plate having a cam surface generated from a spiral form with the center thereof lying along the longitudinal axis of said shaft in such a manner that the cam plate is self-locking with respect to unwanted rotation of said shaft by forces transmitted from said edge surface of the seal upon said cam plate, and a circular plate supported by said shaft for clamping said seal against said door, the centers of said cam plate and said circular plate lie along the longitudinal axis of said shaft.
Claim 3
Dependent Claim
27 words
The combination according to claim 1 wherein said cam plates at opposite sides of said door have said spiral form generated for rotational adjustments in opposite directions.
Claim 4
Dependent Claim
35 words
The combination according to claim 2 further comprising nut means carried by the threaded end of said shaft for securing said circular plate and said cam plate relative to a side wall of said door.
Claim 5
Dependent Claim
27 words
The combination according to claim 1 further comprising resilient means for urging said door toward said frame to enclose said opening leading into the coke oven chamber.