Abstract: An arrangement for filling coal in oven chambers of a coke oven battery has a telescopable filling tube mountable on a filling car and having a lower end which is lowerable to a filling hole frame of a filling hole of a coke oven battery, an upper sealing ring arranged on an outer side of the upper end of a lower tubular piece and a lower sealing ring arranged on an outer side of the lower end of the lower tubular piece of the filling tube, and each having the shape of a portion of a sphere and being provided with upwardly and downwardly directed circular segment-shaped outer surfaces, an additional sealing ring arranged on an inner side of the lower end of an upper tubular piece of the filling tube and having an outer surface which is inclined upwardly, a contact ring loosely located on the lower sealing ring and corresponding to the latter, a filling hole frame sealing ring extending in a funnel-shaped manner into the filling hole opening and has a sealing surface with a spherical cross-section, elastic sea

Abstract: There is described an apparatus for distilling liquids in a vacuum, having a receptacle for a liquid that can be connected to a vacuum pump, a heating arrangement for heating the receptacle causing the liquid to evaporate, a condenser for condensing the vapour, and a collecting vessel for the condensate. To be able to handle the apparatus quickly and more simply and to make it overall more economical and make it possible to carry out continuous distillation, the heating arrangement includes a vacuum-tight receiving chamber (1) for the receptacle (2) and a microwave generator (13, 13.

Abstract: A leveling door for sealing a leveling opening of a coke oven door has a leveling door body, a diaphragm sheet mounted on the leveling door body at its side facing a leveling opening so as to cover the leveling opening, the diaphragm sheet having an edge and being provided on the edge with a circumferential sealing frame, a plurality of pressing elements acting on the sealing frame and distributed over a periphery of the sealing frame, a plurality of socket pins mounting the pressing element on the leveling door body, and an exchangeable heat protective screen arranged in front of the diaphragm sheet at a side facing the leveling opening.

Abstract: A door is equipped on its side facing the area to be closed off, with a sealing element disposed around the peripheral edges of the door, a door locking device to retain the door in a closed position, and possibly a thermal layer for insulating the door from passage of heat therethrough.

Abstract: The device includes a sealing element fixed to the door of a coke oven, the sealing element having an edge forming a junction with the frame of the door, and a channel disposed on the periphery of the sealing element. A sealing gas at a pressure higher than the pressure of the gaseous medium inside the oven flows into the channel. The open side of the channel faces the door frame so as to form a buffer zone of sealing gas sealing off leaks created when the sealing element expands. The channel further includes a plurality of compartments provided with distinct means for supplying the compartments with sealing gas, whereby it is possible to adjust the pressure of the sealing gas in accordance with the places where the leakages are largest.

Abstract: In a plate heat exchanger for evaporation of a liquid by means of a heat emitting vapor every second plate interspace forms an evaporation passage (28) and the rest of the plate interspaces form condensation passages (30). Aligned openings (16) in the plates form an inlet channel through the plate heat exchanger for introduction of evaporation liquid into the evaporation passages (28). For enabling use of a large inlet area of each condensation passage (30) and a large outlet area of each evaporation passage (28) the plate heat exchanger is arranged in a container (1), the interior of which is divided in two chambers (6, 7) by the plate heat exchanger itself and a partition (5).

Abstract: A double face seal for coke ovens comprising charging and venting tubes having flanges; charging and venting ports having top surfaces; and sealing means attached to the flanges for engaging and sealing the top surfaces during charging and venting of coke ovens.

Abstract: A gas jumper arrangement for a coke oven is composed of adjacently arranged coke oven chambers each having a gas opening with rims at the top portion thereof. The gas jumper arrangement overlaps gas openings of two adjacent coke oven chambers by one lid chamber each. The two lid chambers are connected in a duct-like manner by a gas jumper pipe and lids covering the gas openings during filling of a coke oven chamber are displaceable from an opened position into a closed position and settable into a rotational movement within the lid chambers by an actuation device. In order to ensure the tightness of the gas openings at the rims thereof even at larger pressure fluctuations and to enable the introduction of inert gas into the gas jumper arrangment, both the lid and the rim of each gas opening includes valve-face type sealing surfaces that mate with each other when pressed against each other in the closed position of the lid. A feed line for supplying an inert gas runs into the gas jumper arrangement.

Abstract: Gaseous, liguid and solid fuels are recovered from carbonaceous organic waste material by treating charges of waste material in several successive stages including preheating, drying and conversion into solid and gaseous phases, all as a result of heating in a common vessel or in two or three successive vessels. The solid phases are thereupon cooled prior to admission into a bin, either in a separate vessel or in the vessel for conversion into solid and gaseous phases. The gaseous phases are treated to separate oil from reaction water, combustible gases and inert gases. The charges are heated from without and are sealed from the atmosphere during all four stages of treatment. Each charge is mixed during heating and the intensity of mixing action, the heating action and/or the pressure in the vessel can be varied during one or more stages.

Abstract: A distillation apparatus including a pair of vertical lower vessels each open at its upper end, and a pair of elongate upper vessels each having an open lower end, slidably mounted in a respective one of the lower vessels. A heat exchanger is mounted in each of the upper vessels, with the upper end of one upper vessel being connected to the inlet of the heat exchanger in the other vessel, and vice versa. A reciprocating drive mechanism drives the two upper vessels up and down in opposite directions so as to simultaneously effect compression in the space above the liquid level in the downwardly moving vessel while expanding the space above the liquid in the other vessel, driving vapor from the downwardly moving vessel into the heat exchanger in the other vessel, where it condenses.

Abstract: A locking device is for an oven door of an oven which extends horizontally and includes an interior defined by interior walls and a door opening which is surrounded by a door frame. The door frame includes an external sealing surface. The oven door includes a sealing unit having peripheral edge portions for overlying and making sealing contact with the sealing surface of the door frame. The locking device includes a support frame which generally surrounds the sealing unit to overlie the peripheral edge portions thereof. There are included devices for anchoring the support frame to the door frame with the peripheral edge portions disposed therebetween. Contact pressure elements are disposed about the support frame in alignment with the peripheral edge portions. Apparatus is included for causing the contact pressure elements to produce a sealing force on the peripheral edge portions to produce the sealing contact with the sealing surface of the door frame.

Abstract: An apparatus for treating a waste solution generated when a photosensitive material is processed by an automatic developing machine includes a waste solution reservoir which is maintained at a constant level. A drum, partially immersed in the waste solution, is rotated to coat its surface. The drum is heated to produce a waste vapor. The waste vapor is condensed by a condenser and filtered and solid wastes are scraped from the surface of the drum. The condenser has a drain tank for collecting condensate and a non-condensable gas component. The interior of the drain tank is sealed to form an air tight seal and has a vent for exhausting the non-condensable gas component from the interior portion to the outside. The air vent includes an absorption tower to treat the non-condensable gas component.

Abstract: A cold trap vapor control system for use in vapor control systems having a heat removal channel and a heat removal surface area arranged so that during operation a narrow or contoured path is formed for vapors therebetween such that condensation takes place in the path and condensate is thereby drained away from the trap, or utilized to improve vapor containment.

Abstract: A liquid mixture is separated by pervaporation in an apparatus formed by a unitary stack of upright rectangular plates, diaphragms, and seals held together by tie rods. Each of the plates is formed with two upper and two lower corners formed with respective holes and each plate is formed inward of the respective holes with a corrugated central portion and the holes of the plates are aligned horizontally. Each diaphragm is sandwiched between two plates to form a cell having a pair of compartments separated by the respective diaphragm. The seals are arranged in the upstream region of the stack such that the liquid mixture enters one of the lower holes, passes downstream along the upstream portion into one of the compartments of each cell, and its lighter fraction passes as vapor through the diaphragms into the other compartments of these cells while its heavier fraction passes back upstream and exits the apparatus from one of the upper holes.

Abstract: A water purifying system having a condenser made of two superposed sheets of hydrophobic plastic film bonded together to form a tortuous steam path through the condenser. As steam enters the condenser it is cooled by the ambient air, condensed into water and then removed from the condenser.

Abstract: A metal shield is for an oven which has an interior, a door opening which is surrounded by a door frame, and a door for extending across the door opening. The door is for making sealing contact with the door frame. The metal shield includes a plurality of generally parallel elongated metal members which combine to form an array of elongated metal members substantially lying within a plane. The array of elongated metal members is disposed within the interior of the oven inwardly of the door frame and inwardly of the door when the door is in sealing contact with the door frame. The array of elongated metal members extends generally transversely to the interior of the oven with the plane being generally parallel to the door frame.

Abstract: A retrofit coke oven door seal to replace existing coke oven door seals that have become ineffective due to normal use. The retrofit coke oven door seal includes a leaf spring and seal arrangement and a unique mounting structure to enable the existing seal on a coke oven door to be easily removed and replaced by the present invention without modification of alteration to the door body or the existing refractories thus making improvements (in emission control) on existing doors by using a relatively simple structure which is cost effective. The retrofit seal for coke oven doors includes a mounting structure attached to the periphery of the diaphragm plate normally provided on a coke oven door together with fastening devices securing a leaf spring and seal assembly in a manner to enable easy removal and replacement thereof if necessary.

Abstract: A column construction or boiling space in a distilling apparatus, having a pure vapor input connector, an input connector for water to be distilled, numerous heat exchange tubes within the column construction, a pure vapor removal connector, a condensate removal connector, and a connector for removing water to be distilled that has not vaporized. Pure steam is disposed to flow through heat exchange tubes, while impure water to be distilled is disposed to flow through an intermediate space between the heat exchange tubes. The heat exchange tubes are, at both ends, joined to flanges.

Abstract: Sludge or slurry is dewatered by passing it on a screw conveyor through a sealed vessel at a vacuum more negative than -10 inches of Hg.As a result, moisture is removed from the sludge or slurry as water vapor. The vessel is sealed from air by the presence of the sludge or slurry at the inlet and outlet port extents of the vessel.

Abstract: A water distillation apparatus having a distilled water storage tank and a water boiling tank. Components associated with the boiling tank control the level of water therein and production of steam from the water contained therein. A steam flow line permits steam flow from the boiling tank into the storage tank. A distilled water cooling coil disposed in the storage tank at a lower region below the distilled water level is connected with a cool water infeed flow line. A steam condensing coil disposed in the storage tank at an upper region thereof above the desired water level and the cooling coil is connected with the cooling coil. Steam which enters the storage tank can directly contact the condensing coil exterior surface for causing the steam to condense into distilled water in the storage tank.

Abstract: A circular section column with helical liquid flow is divided by a vertical wall 10 into two gas and vapor tight sectors A and B, each sector housing a series of trays.The trays disposed are designated respectively 1a, 2a and 3a for sector A and 1b, 2b and 3b for sector B.The distance D separating each two successive half trays of a given series is constant.On the other hand, the half-trays of one series are each staggered in the axial direction of the column with respect to the half-trays of the other series by a spacing d which is less than half the distance D.This arrangement allows a greater number of half-trays to be housed in a column of a given height, or the height of a column for a given number of trays to be decreased.

Abstract: This is an apparatus for attaching a removable cover to a large vessel. It is adaptable to existing vessels, especially those which have a mounting rim or flange. It uses multiple connector pins which are attached permanently to the vessel and which can be fastened to the cover assembly by a remote operation. It also uses fluid pressure to force the cover against the vessel opening, after which the cover is mechanically secured in place by a second remote operation.

Abstract: A universal coke oven door for use on varying width oven chambers in a coke oven battery is formed with hot side refractory sections and cold side refractory sections spaced therefrom. Ceramic wiper strips are provided which extend outwardly from the sides of the hot side refractory sections towards the oven doorjambs to prevent passage of coal or coke between the hot side refractory layer and the doorjambs. Sole plates may be provided on the bottommost refractory sections of the hot side or cold side refractory layers, while an extension is provided on the topmost refractory section of the hot side refractory layer which extends towards the cold side refractory layer and prevents coal or coke from entering the spacing between the two refractory layers.

Abstract: The coke oven door is provided with a sealing diaphragm which has a sealing strip which comes to engagement with the frame which defines the chamber of the coke oven when the door closes, a plurality of pressure elements each including a housing and an adjustable spring to apply a force to the sealing strip to tightly seal the door in the closed position. The door has a number of radial projections that have cast bores, receiving threaded bolts extending through a common cross-piece to which the housing of the pressure elements are also secured. Counter nuts are mounted on the threaded bolts to adjustably secure the position of the cross-piece and thus the housings of the pressure elements secured thereto, and thereby adjust the force applied by the spring to the sealing strip.

Abstract: Distilling equipment comprising evaporation apparatus (2) including a boiling chamber (6) and equipment and conduits (46-59, 62, 63, 65-71) for supplying raw liquid to the boiling chamber at a predetermined level (43), a plurality of serial condensation stages (10, 20, 30), the first stage (10) connected to the top (7) of the boiling chamber (6) to receive gas therefrom and condense the gas by contact with cold recycled distillate from the final condensation stage (30), each stage having vertical vacuum producing bubble tubes (15, 25, 35) through which distillate and gas bubble (17) pass downward to a collection vessel (16, 26), gas carrier tubes (19, 29) which carry gas from each collection vessel (16, 26) to the condensation chamber (21, 31) of the following stage, and pump (41, 42) in cooperating conduits (18, 22, 28, 32) for pumping distillate free of gas from each collection chamber (16, 26) to the condensation chamber (21, 31) of the following stage.

Abstract: This invention is directed to an extremely lightweight construction for coke oven doors with simultaneous optimal sealing, by assuring that the oven door comprises of one sealing unit and the closing forces act simultaneously on the seal, thereby avoiding heat loss between the two units as much as possible.

Abstract: The invention relates to a coke oven door with a sealing element which consists of a metal sealing strip and a crowned metal diaphragm. When the sealing strip is pressed onto the door frame a wedge-shaped gap is produced between the sealing strip and the door frame into which the tarry condensation residues pass as a result of the movement of the sealing strip and ensure a good seal.

Abstract: This invention is directed to an extremely lightweight construction for coke oven doors with simultaneous optimal sealing, by assuring that the oven door comprises one sealing unit and the closing forces act simultaneously on the seal, thereby avoiding heat loss between the two units as much as possible.

Abstract: This invention is directed to an extremely lightweight construction for coke oven doors made to provide optimal sealing; the oven door comprises one sealing unit having a seal, and closing forces are applied to act uniformally on the seal, thereby minimizing heat loss between the sealing unit and the coke oven as much as possible. The oven door, on its outside surface, is also provided with a boxed duct structure which in use is vertical and has an open top; the boxed structure facilitates heat dissipation by the door outside surface, by convection air flow in the boxed structure.

Abstract: A closure is provided for the top opening of a circular or oval cross section gas offtake pipe provided on the roof for a coke oven chamber to conduct gasses from the chamber to a gas main. The closure includes a domed top cover and an inner cover. The peripheral edge of the top cover dips into a water seal provided on the top edge of the gas offtake pipe when the cover is in a closed position. The edge of the inner cover engages a peripheral top sealing edge of an annular wall which is disposed at a distance from the water seal inwardly thereof. The top seal edge of the annular wall is disposed above a base of the water seal.

Abstract: In the distillation of fresh water from sea water, the sea water is passed ownwardly in a falling film evaporator through a multiplicity of vertical tube evaporator (VTE) stages and multiple stage flash (MSF) evaporators. After the sea water passes through the first VTE stage where it forms a liquid component and a steam component, the liquid component is distributed evenly into the next VTE stage while the steam component enters an adjoining MSF stage. Condensed fresh water flows downwardly from one MSF stage to the next and experiences flash evaporation. The sea water or brine component and the fresh water distillate flow downwardly through the VTE and MSF stages so that the brine component can be removed from the final VTE stage and the fresh water distillate from the final MSF stage.

Abstract: A fabricated self-sealing coke oven door which is resistant to warping formed of a rigid steel plate which overlies the mouth of a coking chamber of a coke oven having longitudinal and transverse rectangular stiffener plates welded to the door plate at points spaced inwardly from the edges of the door plate with a plurality of transverse braces weldably interconnecting the longitudinal stiffener plates at spaced points intermediate the ends thereof and welded to the door plates, a plurality of additional transverse braces having one end welded to a longitudinal stiffener plate and the other end welded to the door plate, a rectangular bar welded to the upper edge of each of the stiffener plates extending the length thereof and outwardly to the edge of the door plate in a plane parallel to the plane of the door plate, and a plurality of spring box means at spaced points along the length of each rectangular bar comprising a length of tubing disposed between the rectangular bar and the door plate adapted to co-ac

Abstract: A sealing means for a vacuum distillation apparatus is provided having a vapor tube rotatably and sealably mounted within a vacuum tube through which vapor passes.

Abstract: A sealing arrangement at coke oven chambers, for gastightly sealing the junction gaps between a transfer means, such as provided on coke guide cars or at the pushing machine and the coke oven, comprises sealing sheets at the oven side, which in operating position, apply against the outside of the chamber opening. The inner space of this transfer means is connected to stationary exhausters, for example. The sealing sheets comprise a plurality of individual segments which, as the transfer means is put in place, are pressed by adjustable springs acting through sliding rods against anchor posts and, at the top of the chamber opening against plates connected between the anchor posts at the top of the chamber.

Abstract: A coke oven door comprises a flat sealing diaphragm which is secured between and spaced apart from the door body and the door plug and is provided on its periphery with sealing knife edges which project against the door frame. The sealing edges are pressed against the door frame by bias adjustable springs, through spring loaded plungers. The door plug is formed by a plurality of individual plug elements closely adjacent to each other and supported by associated plug holders, and the sealing diaphragm is firmly screwed in place between the door body and the plug holders only in the upper and lower zones or areas of the door. In the intermediate zone, the diaphragm is connected to a back-up plate and to the plug holders and held adjustably spaced apart from the door body.

Abstract: A dry sealing leg apparatus is comprised of four chambers through which a moving bed of retorted shale particulates from an oil shale retort is passed serially: a surge chamber, a gas injection chamber, a seal leg chamber, and a gas disengaging chamber. In the gas injection chamber, a sealing gas penetrates the moving bed of shale and divides into two portions. One portion travels countercurrently to the shale through the surge chamber and enters the retort at a positive pressure to seal product gases therein. A second portion travels co-currently with the shale through the seal leg chamber and gas disengaging chamber and exits at a pressure less than that of the retort, having been reduced in pressure by resistance to its passage through the shale.

Abstract: A method for the dry cooling of coke comprises transferring the coke from the coke oven to a special bucket which is moved over a charging hole of a cooling pit. The space between the bucket and the charging hole is closed off and sealed against the atmosphere and a shutter which closes the top of the charging hole is moved upwardly and then transversely off the charging hole to open it as an intermediate charging guide piece is moved in position between the hole and the bucket for the transfer of the coke therebetween. The space between the bucket and the charging hole is sealed by a frame of a sluicing device in which the shutter and the intermediate charging hole guidepiece is movable. The device advantageously runs on wheels which are located outside the frame which seals the space between the charging bucket and the charging pit. The frame of the sluicing device advantageously includes a sealing element which engages into a recess seal combined around the charging hole.

Abstract: A coke oven door is equipped with a metallic sealing strip extending therearound and providing a tight seal for the coke oven. The sealing strip is a compound structure of thin layers or laminations of corrosion-resistant, preferably 0.5 mm thick sheet material. The individual layers are welded to one another at their edges, and, especially if the sealing strip is designed as a sectional diaphragm, a knife-edged sealing blade is provided on the free side of the sealing strip, which blade is pressed into tight contact with the door frame by means of thrust plungers, for example. Due to its laminated structure, the sealing strip is capable of taking up hammering without becoming permanently deformed.

Abstract: An apparatus for transferring between chambers of a coke oven charging gases which develop during the charging of the chambers, while preventing the escape of the gases to the surrounding environment, includes first and second covers mounted for movement between first positions closing charging openings through an oven roof and second positions uncovering such openings. Ducts surround the peripheries of the first and second openings, such ducts being filled with a displaceable sealing medium. First and second housings form respective first and second compartments enclosing the first and second covers, respectively, at all positions thereof. The first and second covers have apron members extending into the displaceable sealing medium in the respective ducts when the covers are in the first positions thereof. The housings have at lower portions thereof seals for sealing the compartments from the exterior.

Abstract: A spring adjusting device for a self-sealing coke oven door embodies a plurality of elongated, outwardly projecting housings carried by the outer side of the door. Each housing is provided with an elongated passageway therethrough in alignment with an opening through the door adjacent the outer edge thereof. A plunger is mounted for sliding movement through each opening with one end of the plunger engaging a flexible sealing member carried by the door and urging a sealing edge of the sealing member into engagement with the door jamb upon inward movement of the plunger. A compression spring is mounted within the passageway with one end thereof engaging an adjacent end of the plunger. Guide members at each end of the spring retain the spring in alignment with the plunger and out of engagement with the passageway. An actuator carried by the outer end of the housing compresses the spring and urges the plunger toward the sealing member.

Abstract: The invention is a new design of chuck door which has a knife-edge sealing strip that fits tightly in a slot of the door and is adjustable longitudinally by jacking screws. The strip is locked in position also by screws. The inside of the chuck door is provided with a cavity within which heat insulating refractory material is retained. A pivoted heat shield hangs from extended side heat shields in the coke oven and pivots up to allow entry of the leveler bar through the opening closed by the chuck door. The design is readily adaptable to new and to existing oven doors.

Abstract: A coke oven door seal in which a leaf spring is fixed to the inner end of a continuous concave seating structure which is peripherally mounted on the door frame. A terminally convex ridge structure extends endwise from the door jamb to flex the leaf spring sufficiently so as to form a continuous gas tight seal around the door. The leaf spring is flexed by the ridge by an amount that is greater than the deflection which would result only from the application of pressure on the leaf spring by coke oven gases. The leaf spring is also flexed by an amount that is less than the amount which would surpass its elastic limit. In an alternate embodiment, the leaf spring and seat structure are mounted on the door jamb while the ridge is mounted on the door frame.

Abstract: A heated chamber having at least one opening; closure means for closing said at least one opening, said closure means having at least a closed and open position; said closure means and said opening having surfaces disposed for coming into proximity of one another in said closed position, said surfaces forming a primary sealing means for said heated chamber in said closed position, there being a substance applied to at least one of said proximate surfaces, said substance having a property of expanding upon the application of heat thereby forming a secondary sealing means between said proximate surfaces in said closed position.

Abstract: A coke oven door assembly which is engageable in coke oven frame comprises a door body with a sealing diaphragm which has a clamp leg portion which extends substantially parallel to a surface of the door and a free leg portion which extends substantially at right angles to the clamped leg portion. An adjusting element overlies the clamped leg portion and is clamped in position by a clamp assembly which carries a fixed bar in a movable part which bears against the free leg portion and is biased by a spring into engagement with the free leg portion. The free leg portion is adapted to have a knife edge portion at the end thereof engaged against the door frame and any displacement of the door relative to the door frame will be indicated by a change in position of the movable part carried by the clamp.

Abstract: An arrangement for sealingly closing an opening of a reaction vessel includes a frame member which bounds the opening and a closing member which is movable between a closing position in juxtaposition with, and an opening position at a spacing from the frame member, as well as a sealing arrangement for sealing the gap between these members in the closing position of the closing member. The sealing arrangement includes an inner seal and an outer seal which define a sealing space filled with a preferably inert gaseous medium. The outer seal includes two sealing elements which extend across the gap in the closing position and define between themselves a confining space, and a liquid seal confined in this confining space. At the upper region, the liquid seal may be confined in an upwardly open horizontal channel and at the lower region it may be contained in a trough-shaped receptacle. The sealing liquid of the liquid seal is preferably circulated through the confining space to act as a cooling medium.

Abstract: Disclosed is a tubular device for preventing the egress of gases evolved in an oven chamber during the charging thereof. The tubular device is moved into an operative location forming a hermetic seal with leveling openings in the doors for two adjacent oven chambers, one of which is to receive a coal charge. The gases evolved during the charging operation pass into the adjacent oven chamber where carbonization has proceeded to an advanced state. The tubular device includes two tubular front parts engageable with the leveling openings of coke oven doors, a U-shaped connecting member, and a tubular rear part which is disposed to receive a leveler which can extend through the rear part and into an oven chamber. A flap is raised from a normally-closed position in the rear part of the device by movement of the leveler bar therein. A truck on which the tubular device is mounted can move in a direction of the oven chamber axis on tracks disposed on a frame for the leveler.

Abstract: A coke oven door is disclosed which includes a sealing diaphragm mounted between the door body and the door stopper having integral means formed therein to cause resilience adjacent the periphery so that sealing blades mounted along the periphery can be pressed into contact with the door frame under unequal forces.

Abstract: An improved access port structure for a vessel, such as a coal gassification furnace, in which a closure member is mounted for movement, on the vessel to open or close an opening, a means of providing a steam vortex flowing into the opening to prevent the escape of gases from the vessel, and an interconnection to the steam supply to assure that the vortex is operating prior to the opening of the closure member.

Abstract: A sealing means for a coke oven chuck door. The sealing means includes a metal sealing member which has springiness and flexibility and is supported cantilever fashion on the inside of the door frame. An insulation block is interposed between the sealing member and door frame. The sealing member has a knife edge flange which extends around its perimeter and is automatically aligned with a sealing surface on the main door on which the chuck door is mounted.

Abstract: A retrofit coke oven door seal to replace existing coke oven door seals that have become ineffective due to normal use. The retrofit coke oven door seal includes a leaf spring and seal arrangement and a unique mounting structure to enable the existing seal on a coke oven door to be easily removed and replaced by the present invention without modification of alteration to the door body or the existing refractories thus making improvements (in emission control) on existing doors by using a relatively simple structure which is cost effective. The retrofit seal for coke oven doors includes a mounting structure attached to the periphery of the diaphragm plate normally provided on a coke oven door together with fastening devices securing a leaf spring and seal assembly in a manner to enable easy removal and replacement thereof if necessary.