Abstract: Method for exhausting from coke ovens gases evolved during charging with the use of a conduit interconnecting an opening in the roof of a coke oven chamber being charged with a corresponding opening in a nearby oven. According to the inveniton, near one of the ends of the conduit interconnecting the two ovens a communication with the atmosphere can be made without disturbing the gas-tight connection between the other end and the nearby oven. One way of achieving this is for the sealing zone or closure portion which dips into a water seal in a riser for a coke oven chamber to be shorter than the other end such that when the conduit is raised the shorter end will permit atmospheric air to flow into the conduit. In another embodiment, a socket is provided at one end of the conduit and has a pivoting flap which, in one position, closes the socket and in another position, closes the gas-exhaust opening.
Abstract: A process for selective vaporization of oxides from recovered waste dust collected from a bag house. Pellets are formed from the waste dust and dried to permit charging in an oxidizing chamber wherein an oxidizing atmospheric is maintained. The chamber is heated to a temperature sufficient to vaporize lead oxide and, if present, also oxides of cadmium, potassium and sodium. The vapors are cooled and separated from furnace gas. The residual oxidized mass is cooled after removal from the oxidizing chamber and fed into a reduction chamber wherein a reducing atmosphere is maintained. The reduction chamber is heated to a temperature of between 1800 and 2000 degrees Fahrenheit to reduce zinc oxide and form zinc vapors which are cooled and separated from furnace gas. Lead oxide particles recovered from the oxidizing process are reduced to lead.
Abstract: Submerged canisters containing compacted spent nuclear fuel rods are connected to buoyant spacer boxes to reduce the apparent weight of the canisters whereby additional canisters may be introduced into existing water pools without exceeding the load-carrying capacity of the water pool floors. The spacer boxes may be integral with the canisters or may be distinct. The spacer boxes may be rigidly or flaccidly connected to the spacer boxes. Buoyancy in the spacer boxes is preferably achieved by filling them with gas, preferably air.
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: A hand glove includes elastic glove material fashioned to fit the hand of the user. Two palm pieces comprised of generally non-elastic material are sewn along the peripheries of the liner pieces to the elastic material of the glove. The palm pieces are fashioned such that one piece, generally triangular, is attached to form closely spaced, side-by-side stretch lines with the first palm part so that the glove material can stretch and deform in a palm area independently of the palm parts.
Abstract: There is disclosed a reversing valve for use with a regenerative coke oven, in which the valve cock is lubricated, having four spaced longitudinally extending lubrication grooves that communicate with lubrication means when the valve is in one of its desired end positions, either open or closed. In a preferred embodiment, means are also provided for introducing degraphitizing air into the grooves, in certain positions of the valve cock.
Abstract: A process for producing a coal-water mixture includes forming dilatant coal particles in an aqueous coal feedstock mixture by treatment with ozone and classifying the coal feedstock mixture by treatment with ozone and classifying the coal feedstock to form first and second coal feed streams each comprised of differently-classified coal particles. Separate surge vessels receive the coal particles in a liquid medium forming each coal feed stream is determined and an electrical signal is delivered to a microprocessor for controlling the portions of each stream which are mixed together in the presence of a dispersing agent to form a coal-water mixture. The coal-water mixture is comprised of at least 65% by weight coal particles, preferably 70%.
Abstract: A syringe assembly includes a syringe receiving a plunger at one end and at the other end there is an extended part which can be heat deformed to hold a ported cap member and a rotatable valve member to the syringe. The ported cap member includes ports adapted to be connected to tubes for receiving, or conveying fluid material. The ported cap member has a central opening through which the extended part extends. The rotatable valve member is located between the syringe and the ported cap member for sealingly engaging both the syringe and the ported cap member by O-ring seals therebetween. The ported cap member is non-rotatably connected to the syringe by a splined connection.
Abstract: A piece of carpet is placed in a press equipped with a cutting tool and with a plate through which pattern on the carpet can be viewed when the plate overlies the carpet. The position of the plate relative to the cutting tool is accurately controlled and the plate can be moved away from the piece of carpet prior to cutting of the latter. The plate has indicating means which can be aligned visually with selected elements of the pattern of the carpet by manual adjustment of the latter to enable the carpet to be cut at predetermined positions with respect to the pattern.
Abstract: Savings in water consumption are obtained and problems with leakage are avoided by using a water-closet valve which is made of flexible air- and water-tight material and has not only a generally frustoconical seat-engaging portion provided with a pair of circumferential rings or protuberances so as to permit the formation of a double seal but also an interior hollow portion such that towards the end of a flushing operation there is produced within the valve member a partial vacuum which creates a thrust force to perfect the sealing of the valve member within its seat.
Abstract: A latch assembly is disclosed for latching a leveling door used to close a leveling rod opening which is surrounded by a seal in a leveling box at the upper portion of a coke-oven door. The latching assembly includes spaced apart side flanges connected together at one of their ends by a cross web. The opposite ends of the flanges carry a rod which, in one embodiment, engage claws on arms extending from the leveling box and in a second embodiment the is pivotally connected with arms extending from the leveling box. In the first embodiment, an arm extends from a leveling door and forms a pivotal connection with retaining members that are in turn, secured to a spring plate.
Abstract: A data-collection and -processing system is integrated with an existing Private Branch Exchange (PBX) telephone system to provide a highly automated telephone-usage accounting and billing tool for use in hospitals and other similar institutions having a large and transient clientele base. The system consists of four separate computer systems connected together (and the required applications software which enables them to function as an integrated system) and miscellaneous peripheral hardware.Working together, the system components provide a detailed accounting of long-distance calls placed by guests and staff personnel. A very high degree of reliability is achieved by the use of redundant and self-checking components. This reliability is further enhanced by the provision for remote software maintenance and hardware diagnosis.
Abstract: A hand trowel device for particular use in roofing and like constructions is specially provided with an integral heating means. The heating means is adapted to continuously maintain the trowel blade at a temperature sufficient to plasticize or render flowable, preferably under applied pressure, the roofing compound or roofing cement employed. The roofing compound to be plasticized may be pre-impregnated in or otherwise integrated with the roofing sheet (or "felt") material being used in the roof covering or it may be separately provided for the purpose of independently sealing and waterproofing the roof covering material, particularly lapped edge or flashed edge portions of sheet roof covering material. Also, since it is a hand trowel, the trowel device is provided with a convenient hand gripping portion to facilitate lifting, carrying and manipulating the trowel during use and, in addition, an attached safety stand for supporting the hot or heated trowel in a rest position elevated above the roof surface.
Abstract: A method and apparatus for shearing logs to form billets includes movable stop at the discharge side of a shear to measure the length of the log passed through the shear. A light beam impinges on a detector when the trailing end of a log passes beyond the light beam to produce a signal concurrently with a signal which is produced by displacement of the movable stop. The concurrent production of these two signals is used to produce a third signal corresponding to a measure of the length of the log. The latter signal is used for determining the sheared length of one or part of a two-piece billet that can be produced from the log-end portion. The log is severed by displacing a movable upper die of the shear beyond a stationary lower die. In one embodiment, a gripper engages and pulls the end of the log from the shear. In a second embodiment, an H-shaped frame extending outwardly at the discharge side of the shear carries a movable stop.
Abstract: A rotary engine includes a housing having a cylindrical internal surface on which seals are supported to prevent the flow of gases from spaces between two rotating pistons on separate but concentrically-arranged shafts. Three sets of gearing control relative rotation of the pistons which move toward and away from each other to compress gases between the pistons. A drive shaft is connected by the first gear set to a first of the concentrically-arranged shafts. The drive shaft is also connected by a second gear set to the other of the concentrically-arranged shafts. The third gear set, comprised of non-circular gears, connects the drive shaft to an output shaft.
Abstract: A method for reducing body fat deposition in non-mammals such as chickens by orally administering over a prolonged period a therapeutic mixture of effective amounts of pyruvate and dihydroxyacetone to which may be added riboflavin. The method also increases the total body protein of the non-mammal.
Abstract: A knuckle for a railway coupler in which an annular knuckle pin support wall is located between upper and lower knuckle pin holes. The knuckle pin support wall in one embodiment is an annular rib and in another embodiment, a continuous wall is formed between knuckle pin holes to prevent fatigue fracture of the pin due to bending fatigue.
Abstract: An adjustable lock for rotating drives, more particularly pipework fittings such as screwdown valves, gate valves or the like wherein the drive is required to make a number of revolutions. In the adjustable lock, a planetary transmission is provided as a reducing transmission in order to reduce drive rotation to at most one revolution and, therefore, to define a definite locking position.
Abstract: Apparatus for carrying an object, such as a percussion instrument, a backpack or a tray, includes a belly plate with a carrier extending outwardly therefrom to support the object in a generally overhanging position from a person. A rigid band extends along one or both sides of the person at the waistline area from the belly plate to the back of the person. A back-plate riser arm extends upwardly generally parallel to the spine of a person to apply a reactive force to the load at the thoracic region generally below the scapula region or at the sternum region. A pad assembly is adjustably positioned on the riser arms to engage the person's back or chest. A releasable latch interconnects the rigid band and the belly plate. A carrier bracket is releasably supported by the belly plate by engaging latch pins in notches located at opposite sides of a lock plate.