Abstract: An aluminum article is cleaned to prepare it for plating by soaking it in an aqueous solution containing sodium metasilicate, sodium pyrophosphate and sodium tetraborate at 140.degree.-180.degree. F. The article is then washed by a power spray of a second solution, constituted the same as the first cleaning solution, at 110.degree.-130.degree. F. The article is subsequently rinsed with water and immersed in an aqueous nitric acid solution.

Abstract: A rotating brush provided with a flexible plastic brush shaft is placed in contact with the front of a vehicle in a vehicle washing apparatus. The combined action of the rotation of the brush and the flex of the plastic brush shaft causes the brush to walk along the front of the vehicle and to turn the front corner of the vehicle and pass along the side of the vehicle. In a similar manner, the brush can be made to turn the rear corner of the vehicle thus enabling the brush to wash the front, side and rear surfaces of the vehicle.

Abstract: Optical components and highly-polished metal surfaces are cleaned with a first composition comprising 1,1,2-trichloro-1,2,2-trifluoroethane, isopropyl alcohol, dimethylformamide and 2-ethoxyethanol; then, while the surface is still wet with said first composition, a second composition, comprising at least about 85% 1,1,2-trichloro-1,2,2-trifluoroethane and containing less than 10 ppm of non-volatile residues, is applied to rinse the surface; and the surface is permitted to dry.

Abstract: A method and apparatus are disclosed for cleansing a matrix of a magnetic separator and more particularly a wet-magnetic separator having adherent magnetic material. The matrix is cleansed both with a liquid medium and an additional gaseous compressible medium. The introduction of the compressible medium is controlled in accordance with a measure of the adherent magnetic material present.

Abstract: Tacky portions of the surface of a photopolymer article, such as a photopolymer printing plate, are treated by immersing the photopolymer article in an aqueous solution of bromine and circulating the solution across the photopolymer article and through an ion-exchange resin to which elemental bromine has been added.

Abstract: A process for cleaning of tin-plated steel cans which comprises washing the surface of a tin-plated steel can with an alkaline solution comprising at least one of esters of myoinositol with 2 to 6 molecules of phosphoric acid and their alkali metal salts, alkaline earth metal salts, ammonium salts and amine salts in a concentration of at least 0.05 g/l and having a pH of 8 to 13, whereby oils and fats adhering to the said surface as well as the oxide film formed on such surface are eliminated without dissolution or corrosion of tin and substrate iron.

Abstract: A paint roller pad is cleaned while being supported on an apparatus including an elongated coil having a shank connected thereto and coaxially extended from one end thereof. When at rest, the coil has an outside diameter less than the inside diameter of the roller pad so that the coil may be axially inserted into the bore of the roller pad. Upon insertion, the coil is adapted to radially expand in response to rotation of the shank in a direction to unwind the coil with the result that the rotating coil engages the roller pad and rotates the same therewith. The method of the invention thus includes axially inserting a coil into the bore of a roller pad and rotating the coil in a direction to unwind the same, thereby radially expanding the coil to engage and rotate the roller pad while removing paint from an exterior portion of the pad.

Abstract: The removal of manufacturing oils from a pre-potted, wound bundle of hollow fibers used in dialysis equipment, is rapidly accomplished by subjecting the fiber assembly to centrifugal forces acting longitudinally of the fibers. Wicking pads may be used at the outer ends of the fibers during the centrifuging step if desired to counteract the capillary action of the fibers. Following the centrifuging, the fibers are repeatedly immersed, in a vertical direction, in a solvent into which any oil trapped in the pores of the fiber walls diffuses. The repeated rise and fall of the solvent in the fiber lumen continually re-introduces fresh solvent into the lumen to leach oil out of the pores at a rapid rate.In the same manner, moisture is then removed from the fibers by alternately evacuating the fiber lumens in a vacuum chamber and refilling them with warm, very dry air to rapidly remove any moisture contained in the cellulose of the fibers.

Abstract: A contact lens cleaning and rinsing method embodying use of a vacuum tool for conveniently retaining a preferably soft contact lens in a positively held position for sequential chemical cleaning and rinsing of both sides thereof preparatory to either thermal or chemical disinfecting of the lens prior to eye contact application and use by the wearer.

Abstract: A water damaged carpet and pad assembly are restored to their normal condition while substantially maintained in an installed, normal floor covering position by extracting excess water from the upper surface of the carpet, applying mildecides, cleaning and drying agents to the upper surface of the carpet, blowing air under the carpet and pad assembly for drying purposes and then deodorizing the carpet and pad assembly by introducing a deodorizing agent into a current of forced air directed to flow between the under surface of the carpet and the upper surface of the pad.

Abstract: Liquid is removed from a pile face of an elongated web and the pile is simultaneously oriented so that its lateral edges are folded inwardly and the remainder of the pile is rendered flat and unidirectional by advancing the web over a suction head having a suction port which extends transversely at least across the full width of the advancing web; the suction head also having passageways at transversely opposite ends of the suction port communicating with the exterior of the suction head.

Abstract: A method for reducing the phosphorus concentration in exposed surface areas of a phosphosilicate glass microcircuit layer to reduce the corrosivity of the layer. The method comprises a two step treatment of the layer surface: first, exposing the surface to water vapor at an elevated temperature for a time sufficient to hydrate available phosphorus in a region adjoining the surface, and second, removing the resultant acidic hydration products by rinsing the surface with water.

Abstract: Difficult flushing of a very narrow gap between a first member having a bore with a closed end and a second member inserted and fixed in the bore can be easily achieved by connecting the gap with a container filled with a pressurized flushing liquid and locally heating the closed end of the gap. Preferably, while locally heating the blocked end of the gap the pressure of the pressurized liquid is reduced to cause the liquid to boil, and if necessary, the pressurizing and pressure reduction are repeated to enhance the flushing effect.

Abstract: A method for removing the rubber lining from rubber-lined vessels. A pool of solvent is maintained in the bottom of the vessel and heated to produce vapors which will penetrate the rubber lining and attack the adhesive bonding agent which attaches the rubber lining to the vessel wall. This vapor attack is maintained until the adhesive bonding agent is sufficiently weakened to allow sufficient air to be blown between the rubber lining and the wall to separate them.

Abstract: A descaling slurry is applied to a surface of an elongated metal strip from a nozzle array while the strip is moving in the direction of its length. The nozzle array is positioned in spaced relation to the strip surface and extends transversely to the strip at an acute angle so that the individual slurry streams emanating from the nozzles do not intersect and strike the strip in a line at the same acute angle as the nozzle array. The nozzles of the array are directed toward the strip surface at an acute spray angle in the direction of movement of the strip.

Abstract: A fibrous milk protein product having a high tensile elongation (115 to 380%) and an excellent stability to hot water cooking (tolerant to treatment in hot water of 135.degree. C. for 4 minutes) which is produced by forming the starting milk protein into a fibrous composition and then treating the fibrous composition in an aqueous solution containing at least one of sodium, potassium and calcium salts and also an aldehyde type crosslinking agent having a ratio of molecular weight (M) to number of aldehyde groups (n) of 120 to 360 (e.g. lactose) at a pH of 2.5 to 6.5 and at 100.degree. to 140.degree. C. for 20 minutes to 3 hours.

Abstract: Paint is removed from brick work without destroying the dense, protective outer surface portion of the bricks by first scraping away heat-loosened paint and then lightly etching the brick surface to remove uniformly the paint residue by combined action of a high-velocity water stream and a relatively low-velocity, smaller stream of granular abrasive material directed at an angle into the water stream. The concentration of abrasive particles entrained in the water stream is varied while directing the water stream against the brick surface by moving the nozzle delivering the abrasive material stream closer to or farther from the water stream.

Abstract: A systematic and programmed wash cycle for cleaning automatic and semi-automatic biochemical analyzers and separators and other equipment. The wash cycle includes a series or sequence of specific and ordered washing steps using a fixed specific sequence of reagents in critical concentrations including use of a hypochlorite reducing agent, a peroxide oxidising agent, an alkaline hydroxide solution, a solution of cetyl pyridinium bromide and cinnamic aldehyde, a solution of a polysulfonated alkyl detergent and a hydrochloric acid solution. It is also contemplated as a special feature, to use a so-called "polishing" system to eliminate from analyzers the micro-organisms and enzymes which cause interference with UV analyses. It is also a particular feature that the ordered wash cycle can be used to clean tubular flow systems, including piping and plumbing, such as may occur in centralized air conditioning units and miscellaneous washing machinery.

Abstract: Ethylene glycol terephthalate oligomer deposits and dyestuff residue are removed from textile dyeing equipment by contacting the deposits and residue with an aqueous composition at a temperature of from about 90.degree. C. to about 140.degree. C.; the aqueous composition consisting essentially of water, an effective amount of a base component to provide the aqueous admixture with a pH of at least about 11.5, an effective minor amount of a phase transfer agent sufficient to catalytically hydrolyze the oligomer deposits present within the textile dyeing machinery, and an effective minor amount of a cationic or nonionic surfactant to solubilize the dyestuff residue present in the textile dyeing machinery. The composition can further include an effective minor amount of a reducing agent to substantially discolor the solubilized dyestuff.

Abstract: A low wash and rinse temperature (120.degree.-140.degree. F.) warewasher accomplishes the same general washing and rinsing effectiveness as a conventional high temperature (150.degree. F. minimum wash, 180.degree. F. minimum rinse) warewasher without loss of productivity resulting from time lost between completion of washing and commencement of rinsing a given load of ware, through use of independent, dedicated wash and rinse systems, the latter of which includes a holding tank which enables independent batching of a predetermined volume of rinse solution from properly-proportioned fresh water and sanitizing agent while washing a given load of ware. The sanitizing agent is introduced independently into the holding tank and independently of the fresh water line, and is therefore unaffected by a great range of water line pressures and the mineral conditions of the water.