Abstract: An apparatus for dipping tablets into gelatin coating material and for spreading and setting the coating immediately after dipping is provided. Carrier plates having a plurality of tablet holders are transported from a tablet loading station to a dipping station along a transport guide. At the dipping station, a carrier plate is mounted to a vacuum chamber. A set of vacuum tubes in the vacuum chamber are extended through the tablet holders to contact and lift the tablets off of the holders and secure the tablets to the tubes. In a preferred embodiment, the vacuum chamber is rotated 180.degree. and a second carrier plate is mounted onto the housing and a second set of tubes secure the tablets to the plate. The carrier plates are alternately dipped and returned to the transport guide where new plates with uncoated tablets replace the plates with coated tablets. Immediately after dipping the carrier plates enter a rotating station where the plate is rotated 360.degree.

Abstract: A method of rehabilitating a wood pulp digester, comprising applying to an interior surface of the digester wall a tacky silicone rubber layer, and then applying vertical strips of metallic sheet material to form a composition layer of said silicone rubber and said metal strips.

Abstract: An improved duplex linerboard is formed from old corrugated containers (OCC) by first repulping the OCC and screening it to provide a fine fraction and a coarse fraction. NaHSO.sub.3 or H.sub.2 O.sub.2 is applied to the fine fraction and the fine fraction produce a chemically treated fine fraction which is then refined. Coarse fraction is separately refined and the refined coarse fraction pulp is then used to form the bottom ply of a multi-ply board and the refined fine fraction pulp used to form the top ply of the multiply board.

Abstract: An apparatus and method for applying coatings to yarns, particularly yarns to be utilized as dental floss. In a preferred arrangement, an array of parallel spaced yarns are continuously fed while being intermittently deflected by a cam or deflector. As the yarns are deflected, they enter a grooved liquid applicator, with the grooves maintaining a predetermined amount of liquid therein by capillary action. A predetermined amount of liquid is thus applied at intermittent or spaced locations along the length of the yarn. The method and apparatus is particularly suitable for providing dye at spaced locations along a continuous length of floss, thereby demarcating lengths suitable for individual use. Various aspects are also applicable to a variety of yarn coating and/or dyeing applications.

Abstract: The invention relates to a method and furnace apparatus for bending and tempering glass sheets. A glass sheet is supported on the same outline mold throughout the entire handling process. A bending furnace (10) is designed to be sufficiently long in the traveling direction for carrying a partially bent glass sheet towards a tempering section (16) in such a manner that the glass sheet reaches its final shape during the passage occurring within the bending furnace (10). For this purpose, the glass sheet is heated in the bending furnace (10) with such a high effect that it reaches its tempering temperature before reaching its final shape. The movements and heating of glass sheets are controlled individually on the basis of the thickness and measured temperature of each glass sheet.

Abstract: A process for cooking wood to pulp by contacting the wood with a deresinating agent containing fatty acid esters of polyoxyalkene glycols priors to cooking the wood with an alkaline liquor to simultaneously reduce pulp rejects and increase pulp yield.

Abstract: Apparatus for contacting a circuit board substrate with etching fluid or some other chemical includes a conveyor system comprised of upper and lower rotating disks for receiving and transporting the circuit board substrate while the substrate is contacted with fluid. The apparatus includes a labyrinth seal which is used to prevent fluid from escaping from the apparatus. A shunting system permits the type of fluid applied to the substrate to be readily altered. Housing units incorporated in the apparatus are readily secured together with a resilient clamp.

Abstract: Procedure for the production of a thixotropic magnesium alloy by adding a grain refiner combined with controlled, rapid solidification with subsequent heating to the two-phase area. It is preferable to use a solidification rate of >1.degree. C./s, more preferably >10.degree. C./s. It is essential that the solidification takes place at such a speed that growth of dendrites is avoided. Heating to the two-phase area is carried out rapidly in 1-30 minutes, preferably 2-5 minutes. By heating an alloy comprising 2-8 weight % Zn, 1.5-5 weight % RE, 0.2-0.8 weight Zr balanced with magnesium to a temperature in the two-phase area after casting, the structure will assume a form in which the .alpha.-phase is globular (RE=rare earth metal). The size of the spheres will be dependent on the temperature and the holding time at that temperature and they will be surrounded by a low-smelting matrix. It is preferable that the alloy has a grain size of not greater than <100 .mu.m, more preferably 50-100 .mu.m.

Abstract: A method and apparatus for the continuous production of cellulosic pulp for use in a papermaking process. The apparatus includes a vessel containing a pulping liquor and the vessel consists of a first impregnation zone and a second attrition zone. Wood chips are continuously fed into the upper end of the first zone and are subject to gentle agitation to impregnate the chips with the liquor. The impregnated chips then flow into the second zone where they are heated to a low temperature of 80.degree. to 120.degree. C. and subjected to more severe agitation to break down the chips and liberate the individual fibers. The liquid level in the first zone is higher than in the second zone, causing the liquid to flow upwardly in the second zone with the cooking liquor and the liberated fibers being continuously discharged from the upper end of the second zone, while larger wood chips are retained in the second zone for further attrition.

Abstract: A method for white liquor oxidation in a kraft mill utilizes a two-stage selective oxidation system in which the first stage is operated to remove sulfide while the second stage is operated to oxidize a significant fraction of the remaining oxidizable sulfur compounds to sulfate. The resulting selectively oxidized white liquor products are used as alkali sources for various process steps in the mill. Optionally, white liquor can be oxidized in a single stage to convert a significant fraction of the oxidizable sulfur compounds to sulfate. Methods for controlling the selective oxidation process are disclosed.

Abstract: An oxy-fuel burner for a forehearth system comprising an oxygen conduit and a fuel conduit disposed concentrically within the oxygen conduit, forming an annulus between the fuel conduit and the oxygen conduit. The fuel firing end of the fuel conduit is recessed within the oxygen conduit at a distance from the oxygen firing end of the oxygen conduit. The ratio of the inside diameter of the oxygen firing end of the oxygen conduit to the inside diameter of the fuel firing end of the fuel conduit is in the range of about 2:1 to 8:1.

Abstract: The invention is directed to a press system of a paper machine for making tissue, including a crepe drying cylinder, a press roll with a smooth surface, an extended-shoe press unit, and a press roll fashioned as a suction roll or grooved roll. A first press gap is formed by the press roll with a smooth surface and the press roll designed as a suction roll or grooved roll. A water collection tub is coordinated with the suction roll or grooved roll. A second gap is formed between the press roll with the smooth surface and the extended-shoe press unit after which the felt leaves the periphery of the press roll with the smooth surface. Following thereafter, a third press gap is provided between the press roll with the smooth surface and the crepe drying cylinder. The felt does not pass through the third press gap.

Abstract: A forming method of a glass product includes the steps of successively setting female press-molds on a gob feeding stage; feeding gob to the female press-molds at the gob feeding stage at predetermined intervals; successively transferring the female press-molds fed with the gob to a press-forming stage; press-forming the gob into a glass product at the press-forming stage; and removing the press-formed glass product at a product removing stage.

Abstract: A method of enhancing the opacity of paper and paper of enhanced opaqueness is provided wherein a reaction product of dimerized acid and alkanol diamine an further including a surfactant, is added to a slurry of cellulose fibers in a papermaking process. A viscosity controlling gent may be added to the reaction product.

Abstract: The present invention includes a first coating section, a second coating section and a device for transferring products from the first to the second sections. The first section includes a feeding and loading station for depositing products onto product holders retained in product carrier plates. The products are advanced to a first dipping station in the first section to coat a first portion of the product. The plates are then advanced to a first rotating station in the first station and rotated at least one revolution for spreading the coating over that first portion. The plates are then advanced to a dryer that extends over the first section of the coating apparatus and the coating is dried. The transfer device transfers the products to the second section of the coating apparatus in such a manner to expose the uncoated portion of the products. The plates are then advanced to identical dipping and rotating stations and dryer as in the first section.

Abstract: Glass sheet bending apparatus (20) including at least one deformable mold (22) has a linkage (26) that extends between mold members (24) and includes connector links (28) fixed to the mold members and having pivotal connections (32) to each other about axes that extend parallel to the glass sheet throughout the bending, and the linkage also has control links (34) that have pivotal connections (36) about axes that extend perpendicular to the glass sheet throughout the bending as well as having universal connections (38) to each other such that the linkage moves the mold members for bending with a constant radius of curvature. The bending apparatus (20) preferably has a pair of the deformable molds (22,44) that are arranged in lower and upper locations and have respective linkages (26,48) as well as having the mold members (24,46) thereof provided with quench openings (66) through which quenching gas is supplied to quench the bent glass sheet for heat strengthening or tempering.

Abstract: An apparatus and method for ultrasonic cleaning is disclosed in which a transducer (35) in a liquid bath is driven by electronic circuitry causing rapid change of frequency to limit development of high concentration for any significant period of time. The electronic circuitry uses two field effect transistors (19 and 20) driving a square wave into an inductor (31) and capacitor (32) in series with a transformer inductor (33) which is coupled in parallel to the transducer (35) the inductor (31) and capacitor (32) and the transformer inductor (33) which is coupled in parallel to the transducer (35) being selected to be resonant at a mean driving frequency.

Abstract: A semiconductor processing system (10) is provided that comprises a cleaning chamber (12) and a load lock wafer handler chamber (14). A cleaning agent (34) is placed in a cleaning bath chamber (28). A semiconductor substrate (16) is placed in contact with the cleaning agent (34). Cleaning agent (34) is initially in a liquid phase and is caused to change to a vapor phase so that the cleaning agent (34) can penetrate the topography of the surface to be cleaned. Cleaning agent (34) is then returned to a liquid phase and finally flash-evaporated to complete the cleaning process.

Abstract: A method of enhancing the opacity of paper and paper of enhanced opaqueness is provided wherein a reaction product of fatty acid, diamine and a glyoxal product an further including a surfactant, is added to a slurry of cellulose fibers in a papermaking process.

Abstract: The formation of wet-pressed tissue webs useful for facial tissue, bath tissue, paper towels or the like is substantially improved by forming the wet tissue web in layers in which the second-formed layer has a consistency which is significantly less than the consistency of the first-formed layer. The fiber support index of the forming fabric is about 170 or greater. The resulting improvement in web formation enables uniform debonding during creping, which in turn provides a significant improvement in softness and a reduction in linting. Wet-pressed tissues made with this process are uniformly internally debonded, as measured by a high Void Volume Index, which is comparable to that of throughdried tissues.