Abstract: A spray cabin for powder spray having a spray opening on one side and an let opening on an opposite side connected to a powder separator applying suction to the outlet opening has at least a baffle directing the outflow upwardly along the wall provided with the outlet opening to entrain particles which have deposited on the floor upwardly and provide a quiescent or calming chamber immediately upstream of the outlet opening.

Abstract: The invention is a cleaning means used to clean a slice in a paper manufacturing machine. The slice cleaning means is made up of a scraping body, a bias means which is attached at one end to the scraping body, and a foot which is attached to the opposite end of the bias means. The scraping body matingly conforms to the outer surface of the upper plate of the slice, and the foot rests on the lower plate of the slice. The slice cleaning means is driven laterally along the slice to remove foreign particles.

Abstract: A process of assembling a ski and a ski structure assembled according to the process. The ski includes a plurality of subassemblies which are attached by applying a thermoplastic material to each of the subassemblies; placing the thermoplastic surfaces of adjacent subassemblies together; heating the thermoplastic junction or junctions; and cooling the thermoplastic junction or junctions to thereby effect a weld. The process of assembling the ski permits the shape of the ski to be modified or at least one of the subassemblies to be removed and replaced by subsequent heating of at least the thermoplastic junctions. The use of glue to attach the subassemblies together is avoided to obtain the reversibility of the assembly of the subassemblies.

Abstract: A plunger mechanism assembly where cooling air to and hot exhaust air from the plunger passes through the base plate which supports the mechanism. The hot and cool air is horizontally separated in a laminated base and insulated one from the other by a plate of heat resistant material.

Abstract: An analytical reader device having an elongated fixed standard tray supporting thereon a strip of standard wells and an elongated movable sample tray supporting thereon a strip of sample wells. A track arrangement connects and allows the movable sample tray to slide along the fixed standard tray. A rack gear is secured along the side of the movable sample tray opposite to the track arrangement. A geared dial is rotatably supported on a support plate secured to the fixed standard tray. The teeth of the geared dial mesh with the teeth of the rack gear so that as the movable sample tray slides the dial rotates. When a sample well is positioned adjacent the visually similar standard well, the dial is turned so that the correct concentration reading thereon appears through a fixed readout window.

Abstract: A cabinet (1) for electrostatic painting which includes a framework (2) supporting flat walls (3) whose surfaces (5) bound a volume inside of which at least pneumatic distributor (6) is installed to distribute powder onto a workpiece (7) which is to be painted thereby. The powder which is not applied to the workpiece settles on the interior surfaces of the walls and is removed therefrom by a combination of air blown from a blowing mouth (20) against the inner surface (5) of each wall in opposition to an air stream generated by a suction mouth (19). During the opposition of the suction and blowing mouths (19, 20, respectively), each wall is moved past the mouths whereby each wall is thereby progressively cleaned of the powder.

Abstract: An integrated process for utilizing waste heat from a glass making furnace. The hot off-gas from the furnace is initially partially cooled, then fed to a reformer. In the reformer, the partially cooled off-gas is further cooled against a hydrocarbon which is thus reformed into a synthesis gas, which is then fed into the glass making furnace as a fuel. The further cooled off-gas is then recycled back to absorb the heat from the hot off-gas to perform the initial cooling.

Abstract: A fiber optic based chemical sensor detects chemical species in solution. A fluorogenic indicator is forced through an ultrafiltration membrane into an analyte solution. Complex formation between indicator molecules and target ions occurs at the membrane-solution interface where light from a bifurcated fiber optic cable stimulates fluorescence. Fluorescent emission from a sample is transmitted back up the fiber optic cable to a linear photo diode detector. The sensor responds linearly to increasing and decreasing concentration changes on time scales of one second. Chemical modification of an indicator solution enhanced sensitivity.

Abstract: An apparatus for melting glass batch material, the apparatus forming glass batch material into a pile having an elongate sloping surface, having a feed device for feeding batch material to an upper part of the pile and a pushing device which is located beneath the feed device to push batch material in the pile towards the elongate sloping surface. There is also disclosed a method of melting glass batch material, the method having the steps of (a) forming glass batch material into a pile having an elongate sloping surface by feeding batch material to an upper part of the pile and pushing batch material in a lower part of the pile towards the elongate sloping surface; and (b) heating the batch material in the elongate sloping surface.

Abstract: An optode designed to prevent washing away of the indicator and reagent from a membrane is located within an optical device that measures substance concentrations. The reagent and indicator materials are covalently bound on the membrane. The membrane can be a polysaccharide, especially cellulose, an acid glycol ester, or it can contain silicon. The indicator and/or reagent can be covalently bound to the membrane by a bridge molecular, particularly a multifunctional aldehyde, glutaraldehyde or a silane.

Abstract: In a two-step etching process for making tapered contact openings in a dieletric, a thin layer of a material is interposed to serve as an adhesive between the dielectric and a photoresist layer the thin layer of material is chosen to remain essentially intact during undercut partial etching of the dielectric. As a result of enhanced adhesion, the photoresist layer remains more accurately positioned for subsequent anisotropic etching across the remainder of the thickness of the dielectric.

Abstract: A hybrid band that includes rigid segments into a paper web being formed in a paper manufacturing process. The band includes a carrier that has an adhesive surface for mounting the rigid segments thereon and spacing filler material between contiguous rigid segments for keep them in place. A jacket is formed over the combination that comprises the carrier, segments and filler material. The resulting hybrid band is prestretched prior to its insertion in a paper web being formed in order to compensate for the subsequent shrinkage of the paper web thereby accomplishing the proper and exact positioning of the segments on said paper web.

Abstract: A multiple reagent test strip-reading instrument having rails extending from a loading area to one or more reading station platforms and then to a waste receptacle, a reciprocating blotter arm which contacts individual reagent strips sequentially placed transversely on the rails in the loading area, moving individual strips along the rails to an indexing strip advancing mechanism which intermittently advances the strips along the rails in spaced parallel relation, and after each advance, allows the strips to dwell for a predetermined time period; individual test strips being thereby sequentially delivered to reading position on the reading station platform where, during the dwell period, they are read by reflectance photometry. After reading, the strips are moved to the waste receptacle.

Abstract: A low magnetic isolation closure glass for use in multitrack magnetic tape heads has been prepared by combining a specific lead borosilicate glass with a specific borosilicate glass in a 60/40 weight percent ratio. The glass formed from the combination exhibits compatibility with ferrite and has reduced wear. Controlling the anneal temperature regulates the residual stress of the closure glass produced, and thus, provides some control over the wear characteristics of the glass.

Abstract: A method and apparatus provide for the continuous digestion of comminuted cellulosic fibrous material (e.g. wood chips) to produce paper pulp, with increased sulfidity. When black liquor is withdrawn from the continuous digester, instead of merely passing it to a pair of flash tanks and then to recovery, the concentrated liquor from a first flash tank is fed to a vessel in which the comminuted material is slurried with a liquid. Since the black liquor remains in intimate contact with the chips for a significant period of time, the lignin in the chips is partly sulfonized. Ultimately the black liquor is replaced with white liquor or the like, and the separated out black liquor is circulated to recovery or disposal. A high pressure feeder and a solids/liquid separator are utilized.

Abstract: A syringe or other suitable dispensing device is coupled to conventional controls for dispensing viscous material such as adhesives or solder paste through a tip thereof. The syringe is supported on a motor driven carriage for movement along a Z axis in response to height control signals. A camera also mounted on the carriage generates output signals representative of an image of the surface of a workpiece such as a PC board. Circuity processes the output signals from the camera to determine when the image is maximally in focus and generates the height control signals necessary to maintain the tip of the syringe a predetermined constant height above the surface of PC board. This ensures the dispensing of uniform balls of solder paste or adhesive at various locations on the PC board despite warpage in the board.

Abstract: A granulating and coating method featuring that a coating liquid and a binder liquid are fed into a rotary drum so as to carry out granulating and coating of a powdery and/or granular material, wherein the coating is performed while a gas is blown out to the rear of the rotating direction of the drum relative to a nozzle unit for feeding the coating liquid of an aqueous type including an emulsion and a suspension into the drum. A granulating and coating apparatus featuring that a nozzle unit for feeding at least one of a coating liquid and a binder liquid into a rotary drum is provided, wherein a gas blow-out portion of a duct is provided near the nozzle unit and the direction of the blow-out is adjustable relative to the nozzle unit. Further the apparatus is provided with a perforated ventilating member over a gas blow-out opening.

Abstract: A system for applying one-part thermal-cure material, such as structural epoxy, includes apparatus for heating or cooling the epoxy to a temperature above or below ambient. A spirally coiled tube is suspended within a hollow enclosure by tube end fittings extending from axially opposed ends of the tube. An electrical heater and temperature sensor extend from opposed enclosure ends into the tube coils approximately centrally of the enclosure. The enclosure is filled with a heat transfer fluid that surrounds the coiled tubing. The fluid is connected through an inlet and outlet in the enclosure endwalls for circulation externally of the enclosure through a fluid chiller. A microprocessor-based controller receives input signals from the temperature sensor and a temperature adjustment mechanism, and provides outputs to the heater, chiller and heater-exchange fluid pump and circulation valve, and to alarm mechanisms for indicating a high-temperature or low-temperature alarm condition.

Abstract: The invention relates to a method and a device for screening and treating pulp. In the invention, the pulp is screened in a screen into an accepted fraction and a rejected fraction, the rejected fraction being treated after the screening by removing water from it. In order to reduce the energy consumption of the refining process, the rejected pulp fraction is screened by means of a means (13) rotating rapidly in a reject space (12) of a screen (1) in such a manner that the rapidly rotating means (13) effects a radial flow of the fine-grained material contained in the rejected fraction outwards through a perforated wall (14) surrounding the rotating means (13) into a space (15, 15a) from where the fine-grained material is discharged.

Abstract: A one-step process for treating polymer surfaces prior to electroless deposition is disclosed. Polymer parts are dipped in a solution containing a good solvent for the polymer, a substantial non-solvent for the polymer, an etchant and, where one of these is immiscible with one or more of the others, a solubilizing agent miscible with the immiscible components to provide a single liquid phase. Formulations are provided for pre-swelling and etching of functionalized polymers, such as polycarbonate in one, two and three steps. The etched surface can then be plated with electroless nickel or copper with satisfactory adhesion of the plated metals. Swelling agents make polymer molecules on and near the surface of the polymer easily accessible to a degradation agent. A degradation agent degradates the polymer molecules. If required, a solubilizing agent increases the miscibility of the degradation agent and the swelling agent. A wetting agent increases the effectiveness of the etching agent.