Abstract: The present invention is directed to a fibrous substrate made of chemically bonded fibers, where the fibers are bound with a polymeric binder in an amount which is sufficient to bind the fibers together to form a self-sustaining web, and where the binder is characterized as having a wet tensile strength of greater than 4500 grams per inch (g/in) when measured at a 20 percent add-on on Whatman #4 CHR chromatography paper which is drum dried for 90 seconds at 210 to 215° F. and cured for 2 minutes at 300 to 325° F. Preferably the level of free formaldehyde in the fibrous substrate is less than 15 ppm. The emulsion binders of the invention may be used to bind fibers together in a substrate; may be used to bind pigment, colors or other substances to a substrate; may be used as a backing material; or may be used to finish or surface-treat a substrate.

Abstract: A novel extrudable aluminum based alloy is described consisting essentially of 0.60-0.84% magnesium, 0.45-0.58% silicon, 0.15-0.40% copper, 0.04-0.35% chromium, or 0.20-0.80% manganese, less than 0.25% iron, where Si>=(Mg/1.73+(Mn+Cr+Fe)/3−0.04), and the balance essentially aluminum. In the alloy of the present invention, the magnesium content has been reduced to the minimum possible for mechanical properties. In this way, the magnesium silicide content of the alloy has been reduced, providing a very beneficial effect on extrudability.

Abstract: The present invention is directed to a non-woven material having an emulsion binder, which is dispersible in water, yet non-dispersible in aqueous solutions containing 0.5 weight percent or more of an inorganic salt. The water-dispersible polymer comprises from 1 to 100 percent by weight of a hydrophilic monomer and from 0 to 99 percent by weight of at least one non-hydrophilic monomer, wherein a film formed from said polymer has a Tg of from −40 to 105° C. The dispersible non-woven material is useful in forming disposable articles which can be disposed of by flushing down a toilet.

Abstract: An accessory device is shown for use with a host object. The host object has a central axis and a plurality of pages at least partially rotatable about the central axis, each of the pages having a remote edge. The accessory device includes a connector having a proximal end and a distal end and means for removably connecting the proximal end of the connector to the host object. The accessory device also includes an extension member, having a proximal end and a distal end, which is sized and shaped such that at least a portion of the extension member is slidably movable about the connector, allowing the extension member to be movable between an extended position and a retracted position. As the extension member slides about the connector from the extended to the retracted position, the proximal end of the extension member is brought closer to the proximal end of the connector.

Abstract: An insert for use in a mandrel used in the production string of a well utilizing a gas lift operation is disclosed. The tubing unit and the valve lug forming the mandrel have communicating bores into which the insert, which is formed of an abrasion resistant material such as carbide, is placed. The insert is soldered in place, with the soldering to the valve lug being accomplished through a temporary opening in the valve lug. A method for assembly of the mandrel is described and an abrasion resistant sleeve for inclusion in a valve lug for use with a fluid operated valve is disclosed.

Abstract: A fabric sack, comprising top, bottom, front and rear walls, has an opening for access to its interior provided in an inclined upper region of its front wall to avoid interference by any luggage strapped to the top wall of the sack and also to allow easy access when the sack is upright and/or on someone's back, and/or laid down on its rear wall. An internal supporting frame extending up the rear wall and across the top of the sack is also provided.

Abstract: A method is disclosed for laminating plastics resin films to aluminum. The aluminum surface to be bonded is treated with a coating composition consisting essentially of an aqueous solution of polyacrylic acid or esters thereof and at least one acid selected from the group consisting of H.sub.2 ZrF.sub.6, H.sub.2 TiF.sub.6 and H.sub.2 SiF.sub.6. After this coating has dried, the plastics resin film is bonded to the aluminum, using dry laminating adhesives.

Abstract: A process for the production of alkoxyalkyl triorganic phosphates utilizing a continuous process for the manufacture of alkoxyalkyl alkoxides comprising treating an alkoxyalkanol with a sodium borohydride for 20 minutes to 4 hours reacting the treated alkoxyalkanol continuously with an alkali metal hydroxide to form an alkali metal alkoxide. A large excess of alcohol is employed. The alkoxide is phosphorylated to form a trialkoxyalkyl phosphate. The alkoxidation reaction and the phosphorylation reaction are both conducted in a non-oxidizing atmosphere. The crude product is then refined by conventional means.

Abstract: A photographic reproportioning apparatus for transferring an image from a sheet member to an arcuate image on a photosensitive sheet has first and second travel boards movably supported for movement in a linear direction. A light shield having a uniform exposure line and a taper exposure line is located over the travel boards. Light projected through one of the exposure lines exposes a photosensitive sheet on movement of the sheet under the exposure line. A radius attachment having a circular member is drivably associated with the second travel board to move a photosensitive sheet in an arcuate direction. The sheet member carrying the image is attached to the first travel board and moves in a linear direction whereby the linear image is projected by light passing through the tapered exposure line in an arcuate pattern on the photosensitive sheet as the photosensitive sheet and sheet member having the image pass under the tapered exposure line.

Abstract: A method and apparatus for drilling a hole in a body of ice and for destroying a body of ice. The method comprises the steps of providing a source of reactant gas of a type which will react chemically with ice to form solid compounds which are unstable and which break down rapidly to water and a dissolved gas. The reaction product which is formed is removed quickly in order to avoid a secondary and initially undesirable exothermic reaction of gas dissolution into the water so formed. The reactant gas is directed through a nozzle to generate a stream of reactant gas. The nozzle is located in close proximity to a body of ice, and the stream of reactant gas is directed against a localized area of the surface of said body of ice at a velocity and flow rate to obtain an optimum phase change reaction with the ice and to quickly remove water formed from the ice in the localized area.

Abstract: Presented in two different aspects is a generally U-shaped spring-action device for attachment to overhead beams for the purpose of forming an anchor to which suspensory rods may be attached for suspending ceilings, pipes, ducts or other structures.

Abstract: A photographic reproportioning apparatus for changing one dimension of a two-dimension image projected on a photosensitive member having a main travel board supporting a sub-travel board for movement in a linear path. The boards are shielded from a light source with an opaque mask having an exposure window to expose the photosensitive member as it moves relative to the window. Motion transmitting structure operates to move the sub-travel board at the same speed or less than the speed of the main travel board. The motion transmission structure has an adjustable speed control bar connected to a first drive mounted on the main travel board. The first drive operates a second drive mounted on the main travel board and connected to the sub-travel board. The speed of movement of the first drive depends on the angular position of the speed control bar relative to the longitudinal path of movement of the main travel board and the speed of the main travel board. The first drive also rotates a wheel.

Abstract: In a method of making decorative panels, a liquid masking material is applied to a surface of a panel, and is cured to form a substantially solid masking layer on the surface. A pattern comprising at least one unmasked area and at least one masked area is formed in the masking layer either simultaneously with the application of the liquid masking material or subsequent to the curing step. The surface of the panel is then treated to render the unmasked areas of the surface of the panel visually distinguishable from the masked areas. In one embodiment of the invention the masking layer is elastomeric and the surface of the panel is treated by sandblasting, after which the masking layer is removed. The entire process may then be repeated to provide a dual density effect. In another embodiment of the invention an asphaltum masking layer is applied to a mirror forming layer on a panel, after which the portions of the mirror forming layer corresponding to the unmasked areas are chemically removed.

Abstract: In a method of making decorative panels, a liquid masking material is applied to a surface of a panel, and is cured to form a substantially solid masking layer on the surface. A pattern comprising at least one unmasked area and at least one masked area is formed in the masking layer either simultaneously with the application of the liquid masking material or subsequent to the curing step. The surface of the panel is then treated to render the unmasked areas of the surface of the panel visually distinguishable from the masked areas. In one embodiment of the invention the masking layer is elastomeric and the surface of the panel is treated by sandblasting, after which the masking layer is removed. The entire process may then be repeated to provide a dual density effect. In another embodiment of the invention an asphaltum masking layer is applied to a mirror forming layer on a panel, after which the portions of the mirror forming layer corresponding to the unmasked areas are chemically removed.

Abstract: In a method of making decorative panels, a liquid masking material is applied to a surface of a panel, and is cured to form a substantially solid masking layer on the surface. A pattern comprising at least one unmasked area and at least one masked area is formed in the masking layer either simultaneously with the application of the liquid masking material or subsequent to the curing step. The surface of the panel is then treated to render the unmasked areas of the surface of the panel visually distinguishable from the masked areas. In one embodiment of the invention the masking layer is elastomeric and the surface of the panel is treated by sandblasting, after which the masking layer is removed. The entire process may then be repeated to provide a dual density effect. In another embodiment of the invention an asphaltum masking layer is applied to a mirror forming layer on a panel, after which the portions of the mirror forming layer corresponding to the unmasked areas are chemically removed.

Abstract: An apparatus having a first table and a second table carrying a negative and photosensitive film under a member having an elongated slit. A light source projects light through the slit to expose the film as it moves under the slit. Motion transmitting control structure is operable to move the second table at a speed which is equal to or less than the speed of the first table. The motion transmitting structure has an angularly adjustable arm connected to the first table. A movable member located in a guideway is connected by a cable to the second table and engageable with the arm whereby on movement of the first table the arm moves the movable member which in turn moves the second table. The speed of the second table relative to the speed of the first table depends on the angular position of the arm. The apparatus has an accessory for changing a linear image to an arcuate image.

Abstract: A method for controlling stress and increasing the load-bearing strength of support members, the support members comprising coal, of a coal mine wherein the method consists essentially of injecting ammonia or hydrochloric acid into the interior portions of the support members.