Abstract: Because barbeque forks tend to be rather unwieldy items a barbeque fork is provided which can be separated into a number of shorter pieces or lengths for storage and the pieces then assembled end to end by connecting means before use. Preferably such connecting means comprise a screw-threaded spigot on one piece and a corresponding screw-threaded socket on the adjacent piece. To avoid difficulties in unscrewing the connection means with greasy hands, however, when there are more than three pieces or sections, gripping means such as outwardly projecting lugs are provided the or each section which is not one containing the handle or the prongs. Also to assist in propping up the fork a supporting member, axially slidable along the shaft, can be provided, the supporting member comprises a pair of domed plates placed back to back and each plate having a number of outwardly projecting arms.

Abstract: In a dental syringe, compressed air is caused to flow through a passage tube provided in the body of the syringe while whirling, thus resulting in a whirling air flow which is in turn caused to flow toward a nozzle and, in the course of the flowing movement, is heated due to friction between the air flow and the inner wall of the passage tube.

Abstract: A composite cinematography system and method in which two identical images are projected towards two separate reflective screens, respectively, with a camera being disposed in the reflective path of one of the screens. The reflection from the other screen is directed into the reflective path and masking means are provided for masking selected complimentary portions of the images on both of the reflecting means to create a special effect. A lens system is provided which forms a reduced focused image of at least one of the images at a location along its respective reflective path and means are disposed in the latter reflective path approximate to the reduced focused image for superimposing an additional image onto the reduced focused image to form a composite image for photographing by the camera.

Abstract: A fluidized bed reactor in which at least a portion of the walls of the reactor housing are formed by a plurality of water wall tubes. A fluidized bed is formed in the housing and a plurality of heat exchange tubes are provided, at least a portion of each of which extends into the bed. One or both ends of each heat exchange tube registers with a water wall tube and a water flow circuit is formed that includes the water wall tubes and heat exchange tubes for passing the water in a heat exchange relation with the bed.

Abstract: A method of operating a fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material which is introduced into the housing through an inlet. Air is passed through the plate to fluidize the particulate material and a drain pipe is provided for discharging the spent material from the bed. The flow rate of air introduced into the bed is increased in a direction across said bed from said inlet to said drain pipe to promote the circulation of the bed materials from the inlet to the drain pipe.

Abstract: A method of operating a fluidized bed in which a bed of particulate combustible material and adsorbent material are disposed on a perforated plate. Air is introduced through said plate and into said bed to fluidize and promote the combustion of the combustible material, and a gaseous agent is injected into the bed to stabilize the surface hardness, sulfur-absorption properties and catalytic properties of said adsorbent material.

Abstract: In a spectroscopic analyzer, light emitted from a light source is spectroscopically divided into a series of light rays of different wavelength by means of plural sets of interference filter for two-wavelength photometry adapted to intermittently and successively intercepting light from the light source or to be scanned by the light through a rotatable slit. An object under test is irradiated sequentially by the series of light rays transmitted through an optical fiber bundle. Reflected light rays carrying informations of the object are sequentially applied to photoelectric converter. Electric signals thus produced are digitized and arithmetically processed for obtaining a plurality of data corresponding to the plural sets of the interference filters.

Abstract: An installation for rapidly obtaining a high vacuum, comprising two compression stages, the first of which is a liquid ring vacuum pump, characterized in that means are provided for instantaneously coupling or dissociating the first stage and the second stage. The invention concerns also a process intended to be used in said installation.

Abstract: A compact form of torch which can resemble a lipstick in size and shape so that it can be carried in a handbag comprises a base rotatably supporting a sleeve to move torch between a retracted non-working position and a projecting position. A battery holder is axially movable by engagement of pins projecting from the holder into spiral grooves in the sleeve. A bulb holder is resiliently urged away from the battery holder and constrained to move axially corresponding to the movement of the battery holder except that the bulb holder reaches a stop position just before the battery holder reaches the projecting position so that slight further axial movement of the battery holder causes contact between the lamp carried by the lamp carrier and a battery carried by the battery holder to energize the lamp in the projecting position of the torch.

Abstract: A combustion system and method for a coal-fired furnace in which a burner divides a mixture of coal and air into a first stream containing most of the coal and a second stream containing most of the air. The first stream is discharged from the central part of the burner and the second stream is discharged through an annular passage surrounding the first stream in a combustion-supporting relation to the first stream. Additional air is discharged in varying amounts in a combustion-supporting relation to said streams.

Abstract: A process for concentrating a cold liquid dairy product and for preheating a circulating fluid, which comprises the steps of submitting the liquid dairy product to a multi-stage evaporation by supplying a first evaporation stage with heating vapor as a source of heat for evaporation of the liquid dairy product in the first evaporation stage to convert the heating vapor to condensate and produce evaporation vapor from the liquid dairy product; supplying the second evaporation stage with evaporation vapor produced in the first evaporation stage so that the first evaporation stage supplies a source of heat for evaporation of the liquid dairy product in the second evaporation stage to convert the evaporation vapor supply in the second evaporation stage to condensate and produce evaporation vapor from the liquid dairy product; repeating the steps of submitting and supplying up to and including the last evaporation stage; preheating the circulating fluid by a one-step heat exchange with the evaporation vapor, the c

Abstract: Apparatus for expanding a tube into a bore formed in tube sheet in which a primary explosive containing a relatively high number of grains of explosive per unit length extends within the tube coextensive with that portion of the tube to be expanded. An energy transfer cord extends between a detonator and the primary explosive and includes a relatively low number of grains of explosive per unit length which are insufficient to detonate the primary explosive but which be covered by a sheath to contain the debris and gases associated with the explosion of the latter explosive. A booster extends between the energy transfer cord and the primary explosive and contains an explosive which is detonatable by the energy transfer cord and, upon exploding, detonates the primary explosive.

Abstract: Disclosed are methods and apparatus for extracting gel from aloe vera leaves without contaminating the gel with toxic juices indigenous to the husks of the leaves. Further, this mechanized extraction is uniquely suited to permit frequent cleaning of the machinery. The leaves are washed, trimmed, and introduced into means for feeding the aloe vera leaves to and through a blade which longitudinally bisects the leaves. The split leaves are then passed through pressing rollers which advance the husks but retain the gel which falls from the pressing rollers into a collection pan. The pressed husks shed additional gel as they are carried over a further expanse of the collection pan and are then transferred to a husk collection conveyor which carries the husks back under the machinery. The pressing rollers are mounted to the frame of the apparatus by a hinged block which permits the pressing rollers to be swung open to permit cleaning of the pressing rollers and the blade.

Abstract: A multiple flow and direction control valve connectable to a plurality of separate fluid sources, the valve having a fluid power port and a fluid exhaust port and a first movable valve body being operable to add or subtract the flow rates of a plurality of fluid sources to either the power port or the exhaust port. The valve has a directional control member having two power ports and one exhaust port and being operable in a first position to apply power fluid to one of the power ports, exhaust fluid being returned through the second power port and routed out of the exhaust port and in a second position said power fluid being routed to the other power port and returned through the first power port to the exhaust port. The valve includes modified directional control members which may be stacked to sequentially provide directional control for a plurality of outputs.

Abstract: Disclosed is an apparatus for safely and effectively facilitating the ignition of logs positioned on a grate within a fireplace. It includes an elongated open top container and a base for support. The open top of the container maintains a flame sustained by the combustion of vaporized fuel. Once combustion of the fuel is initiated, the container walls defining this opening receive and conduct heat to the fuel reservoir to vaporize more fuel and thereby sustain combustion. Combustion may be initiated by a combustible wick. The upper section of the windward wall of the container slopes downwardly and outwardly from the opening at the top of the container and this surface cooperates with the surface formed by the bottom of the grate and its contents. Together, these surfaces restrict the natural draft underneath the grate producing somewhat of a venturi effect thereby increasing the velocity of the draft.

Abstract: Disclosed is a liquid inertia tool in which the kinetic energy of flowing liquid is converted to useful work by decelerating the liquid flow and directing the inertia force in the water against a movable element in the liquid flowcontaining structure which in turn moves against a work piece. Flow deceleration is achieved by an orifice-effect valve. The valve is reset for flow resumption or acceleration by automatically or selectively applying hydraulic pressure to a reset mechanism. Use of the inertia tool in pile driving and punch press applications is disclosed.

Abstract: An external catheterization device and technique is disclosed that provides for increased safety, comfort and mobility. The device is constructed from four major elements, an adhesive surface, a pliable stabilizer, a main body and an outlet tube. The adhesive surface covers the subject side of the stabilizer and surrounds the inlet to the main body of the catheter. The stabilizer is formed of a material conformable to the subject and aids in placing the catheter. The main body of the catheter is formed to carry urine and vaginal discharge which is received through the inlet, to the outlet tube at which conventional drainage devices are attachable. The catheterization technique necessary for utilizing the external catheter of the present requires cleansing the entire urogenital area applying a suitable protective dressing, and pressing the adhesive surface of the catheter into a leak resistent, sealing relationship with the subject's body.

Abstract: A steam separating apparatus wherein a first separating unit receives a steam-water mixture and discharges said mixture in a substantially tangential direction against an impingement plate to separate some water from said mixture. A second separating unit is disposed in a fluid flow relation to the first separating unit and includes a plurality of plates together formed into a closed circular configuration. The latter plates are shaped in a manner to define a plurality of irregular paths for the passage of said mixture so that said mixture impinges on said plates as it passes through said paths to separate additional water from said mixture.