Abstract: A pressure sealing method for sealing the inlet and outlet parts of a high pressure steamer which performs steaming with saturated steam of high temperature and high pressure in processing a textile product for desizing, scouring, bleaching, dyeing or the like. A pair or more than one pair of air pressure chambers made of a gas or fluid exudative material formed in a hollow cylindrical or semicylindrical shape or made of a gas impermeable thin plate are arranged to confront one another at the inlet or outlet part in the high steamer for the entry or exit of the treated product. The pressure of a pressure chamber of the steamer and that of atmospheric parts are shut off by one pair or more than one pair of nipping faces of these air pressure chambers which are pressed against one another. The treated product is allowed to pass through the inlet and outlet parts against the combined pressure developed between the nipping faces.

Abstract: A vacuum seal designed for the continuous movement therethrough of fibrous materials, such as carpet yarn, into a gaseous-plasma vacuum system while preserving a vacuum of about 1 Torr is described. The seal comprises a lower metal block with an elongated groove formed in the flat upper surface thereof and an upper metal block having an open bottom air chamber formed in its lower flat surface. In its assembled form, a flexible membrane is positioned between the formed, flat surfaces of the blocks. A seal is formed by pressurizing the air chamber in the upper block, thereby forcing the flexible membrane against the groove in the lower block and the upper side of the material passing therethrough, thus forcing the material to conform to the shape of the groove. Continuous variation in the degree of vacuum seal may be achieved by varying the pressure in the air chamber in the upper block.

Abstract: A door seal especially adapted to for use in a high temperature furnace wherein a sealing gas is controllably introduced between confronting surfaces of the door and the furnace to establish a gas barrier against leakage of cover gas from within the furnace chamber and leakage of air into the furnace chamber.

Abstract: An air seal having a flexible annular seal which fits around a cylindrical rotatable member and a flexible marginal portion which slidably interfits within an opening into a substantially closed chamber whereby both rotation and pivotal movement of the member is permitted without allowing flow of an substantial amount of air between the member and chamber.

Abstract: Sealing device for the continuous inlet and outlet of textile material in the form of endless ropes into and from a pressure-tight container under high temperature conditions, consisting of a number of locks of graduated pressure, which are positioned one behind the other in the transport direction of the rope, and characterized in that each pressure lock is a sealing element made of elastic material in the form of the common shell of two frusta of straight circular cones of different height, which abut on each other axially with their top faces, and which face, in the direction toward the open base of the lower frustum the room under higher pressure, and whose internal surface is lined with a smooth layer and the inner diameter of the sealing element approximately corresponds to the diameter of the cylindrically shaped textile rope, so as to be tightly pressed from all sides onto the textile material under the action of the higher internal pressure exerted in the pressure container on the outer shell of the

Abstract: A sealing arrangement for use at the inlet and outlet of containers in which a pressure above or below atmospheric pressure prevails, especially for treating webs of textile material. The sealing arrangement comprises two endless belts respectively looped around two pairs of reversing rollers with the rollers of each pair spaced from each other so that straight belt sections are formed between the rollers of each pair of reversing rollers. The web of goods is passed between two adjacent straight belt sections, which respectively pertain to the two endless belts, and rim portions, and which seal the space surrounded by the belts and located between the rollers against the pressure surrounding the container.

Abstract: A sulphur-burning and gaseous products absorption system incorporating control means to establish generation of sulphur dioxide at a rate which is compatible with the capacity of absorption means for absorption of the gases by water, together with controls which make the system fail-safe even when unattended. In order to provide an absorption efficiency compatible with clean air standards, a unique absorption tower is provided, together with pre-cooling means further to improve the absorption tower efficiency. Further, the control efficiency and the purity of the product are improved by ebullition control. A unique joint is provided for sealing the sulphur-burning tower against undesirable leakage which also enables this tower readily to be disassembled for maintenance and repair.

Abstract: The combination of an air sealing device and liquid sealing arrangement including an air pressure chamber and a liquid chamber which are arranged along the incoming and outgoing path lines of a cloth or textile material or the like, the path lines being formed between a plurality of sealing rolls disposed on a drum body of a high pressure steamer and the inside of the drum body. The air pressure inside the air pressure chamber is arranged to be balanced through a water column in the liquid chamber with a high pressure, high temperature steam existing inside the drum body.

Abstract: In a pressure seal apparatus for a high pressure steamer, seal rolls form a nip in a roll seal mechanism mounted on the fiber products feed in and take out openings of a high pressure steamer vessel body. The roll seal mechanisms shield the inside of the vessel from external air when fiber products are fed in or taken out and are positioned on the upper planes of a seal block through which a fiber products passage extends. Different members can be combined with the seal rolls in forming the seal mechanism, such as intermediate rolls formed as water permeable hoses are inserted into concave parts provided on opposite sides of the fiber products passage through the seal block. In another embodiment an elastic sealing member is placed in contact with the seal block and the seal rolls. In still another embodiment a shielding valve is provided at one end of the fiber products passage for regulating vessel internal pressure and preventing sudden pressure leakage.

Abstract: A method of forming a pressure seal by employing an air balance in a high pressure steamer in which pressurized sealing gas is introduced into an air seal chamber which is shut off from the outside air by a roll seal mechanism installed at the fiber feed in and take out openings of a high pressure steamer vessel body, so that the sealing gas and steam leaking from within the vessel body into the air seal chamber buffer each other for forming and air balance within the vessel body.

Abstract: An endless flexible sheet form member defines a loop having opposite circumferential edge portions and which may be moved relative to front and rear stationary bulkheads which support and guide the loop to form a clothes drying drum of a desired shape to optimize clothes tumbling patterns and the utilization of dryer cabinet space. Means are provided to form a seal between the movable drum and the stationary bulkheads.

Abstract: This invention relates to an apparatus for treating materials.The apparatus comprises a chamber defining a treatment space for treating the textile materials and having an inlet for introducing said textile materials to be treated and an outlet for extracting the treated materials. An endless conveyor traverses the treatment chamber, extending through said inlet and said outlet and conveying said textile materials in said treatment chamber. Means for feeding a treatment agent into said treatment space and means for creating at the inlet and/or said outlet of said treatment chamber, a pressure zone and/or a temperature zone to maintain within the treatment space a gas pressure and/or a temperature higher than that and/or those existing outside said treatment chamber are provided.The apparatus avoids the undersireable flows of gas at said inlet and outlet of said treatment chamber and allows regular treatment operations of the textile materials.

Abstract: Process and apparatus by means of which synthetic fiber tow, sliver or yarn is heated in a relaxed state or under tension. The material, while passing through a horizontally elongated oven provided with a series of infrared ray heaters on both the top and bottom walls, is irradiated by far infrared rays having a peak wave length of 3.5 to 7.0 .mu., while an air curtain is formed between the material and each series of infrared ray heaters; the atmosphere surrounding the material in the oven is kept at 80.degree. to 280.degree.C. Rapid treatment is possible without any adverse effects on the material.

Abstract: The disclosure relates to an apparatus for steam processing tubular knitted fabric, as in a spreading or calendering operation. The steamer apparatus of the invention is characterized by its ability effectively to impart steam to the fabric at much higher rates than has been possible heretofore, consistent with satisfactory quality. Since the steaming of the fabric heretofore has constituted a limiting or bottleneck stage of calendering or similar processing operations, the ability of the new steaming device to increase the effective rate of steam application can be translated directly into higher production rates in the fabric processing operation as a whole.The new steaming apparatus includes a pair of dripless steam boxes of heretofore known construction arranged above and below the plane of the fabric in a manner well known per se.

Abstract: A device for continuously treating a web by a steam atmosphere, comprising a housing with a split-shaped inlet and outlet for this web and means within said housing for conveying the web in a loop-formation through the interior of the housing at least two mutually spaced rollers being provided near the inlet one roller outside and one roller inside the housing for feeding the web through said slit-shaped inlet, a suction device being provided outside the housing near said inlet.

Abstract: A coking oven has an upright wall formed with an opening which is normally closed by a door past which noxious gases escape at least at times. Outwardly adjacent the opening and the wall are formed one or more upright channels having open ends located below and above the level of the opening, respectively, and being so positioned that escaping noxious gases can enter into this channel or these channels. Arranged adjacent the upper open end or ends is a suction conduit provided with apertures through which the gases can be drawn from the channel or channels to be conveyed in the conduit.

Abstract: Apparatus and method for removing moisture from textile products which are sufficiently porous to permit a substantial flow of heated fluid through the product. Two separate drying regions are provided through which a web of textile product is serially moved. The textile product divides each drying region into a pair of drying zones, and a differential pressure of heated air is maintained on opposite sides of the textile product in each of the heating regions to maintain a flow of heated air through the textile product. The wet textile product first passes through an initial heating region for flowthrough exposure to air heated to a temperature exceeding the temperature at which the dry textile product is damaged, for evaporation of unbound moisture without damaging the textile product. The textile product then passes through a subsequent heating region for flow-through exposure to recirculating air at a temperature which is nondamaging to the textile product.

Abstract: In order to dry wet strands of plastics which have been passed through a cooling bath during the manufacture of plastics granules, we provide an apparatus and a process in which the strands are fed through a gap and a current of air is passed through the gap in order to dry the strands.

Abstract: A chamber seal is provided, which accommodates the entry into and exit from a processing chamber for a web of fabric. The seal serves to minimize the flow of gases into or out of the chamber, while at the same time minimizing frictional drag on the fabric, so that the fabric may be processed without excessive tension. The invention is especially useful in connection with processing of fabrics with liquid ammonia.The low pressure seal includes a guide member which engages and guides one surface of the fabric. The opposite surface of the fabric is contacted by a thin, flexible web of low friction material, such as Teflon-impregnated glass fiber cloth. The sealing web, which is highly flexible and conformable, is urged into contact with the fabric by means of a slightly compressed resilient tubular element, which is supported opposite the fabric guide. To advantage, the resilient element is not inflated, but provides the desired low pressure sealing force by reason of a slight deformation.

Abstract: A seal is disclosed between a stationary hood and an end of a rotary kiln enclosed thereby to prevent entrance of atmospheric air or the exit of process gas. The seal includes a first annular seal ring on a flange to rotate with the kiln, and a second and nonrotating annular seal ring mounted on an axially movable cylinder arranged around the kiln. The cylinder is part of a movable assembly that also cooperates with the kiln flange to define an annular chamber encompassing both seal rings and which is filled with a pressurized gas to prevent leakage between the rings. A thin annular flexible diaphragm around the kiln is circumferentially sealed on one end to the hood and on the other end to the movable cylinder. The diaphragm is sufficiently flexible to allow the cylinder and attached seal ring to move axially, as the kiln expands, to maintain an effective seal.

Abstract: In a method of and apparatus for heating circulating air, particularly circulating air in drying equipment, a portion of the circulating air is exhausted from the drying equipment and conveyed to a combustion chamber for the thermal incineration therein. Prior to entry into the combustion chamber, the exhaust portion of the circulating air is preheated by a transfer of heat with oxidyzed gases produced in the combustion chamber. Thereupon, an outlet channel conveys all or part of still-heated incinerated gases either directly to the remainder of the circulating air in the drying chamber, or indirectly to an air-lock, or alternatively to a heat exchanger to heat the remaining circulating air in the drying chamber.

Abstract: An improved bearing and seal is used in a clothes dryer having an endless belt for a tumbler with the belt being driven in matching channels formed in a pair of opposed upright panels. Carriers secured to the belt extend all around each edge of the belt and have a metallic element extending over the edge of the belt and disposed in the channel. Each of the carriers has a continuous pile strip disposed along the inside of the belt to engage inner edges of the channels to form a sealing barrier keeping lint and air from entering the channels, and each of the carriers has wear-resistant, low-friction material engaging the sides and bottoms of the channels to provide a running fit for the belt in the channels.

Abstract: A curing chamber has entry and exit ports for passing articles to be cured therethrough. Air curtains are provided at the inlet and exit ports. Communicating means connect the air curtains to a source for maintaining a pressure equilibrium at the air curtains. Means from outside the air curtains supply a controlled heated moist vapor for providing predetermined moisture to the air curtains to thereby reduce the escape of volatile gases within the curing chamber.