Abstract: In order to form concrete pipe of uniform density in apparatus where a packer head packs concrete into a mold to form the pipe, the horsepower of the drive motor driving the packer is sensed and used to adjust the rate of concrete supply such as to insure a constant horsepower as the packer is moved from one end of the pipe mold to the other.

Abstract: Actinic radiation curable coating compositions are provided applicable to many substrates comprising a pentaerythritol-based polyacrylate or polymethacrylate such as pentaerythritol tetraacrylate, a cellulose ester such as cellulose acetate butyrate and a photoinitiator. The compounds are preferably applied to the substrate by spraying a solution of the composition in one or more solvents selected from the group consisting of lower alcohols and ester, ketones having from 3 to 7 carbon atoms and lower alkyl Cellosolves, and removing the solvents.Upon curing in air the compositions form extremely abrasion resistant coatings on the substrate and are also characterized by being scratch resistant and resistant to attack by chemical and organic solvents.

Abstract: An applicator for applying sealing compounds such as caulking is provided having a tubular spout, an inlet opening which communicates with the sealing compound and an outlet orifice. A finger-shaped applicator tip extends longitudinally outward while angled inwardly of the spout and has an oval cross-section in the vicinity of the outlet which makes the outlet orifice crescent-shaped.

Abstract: A centrifugal separator cleans a stream of fluid by passing the same through a rapidly rotating tapered duct. Rotation of the duct creates centrifugal force which causes pollutants carried by the stream to collect on a duct wall and to flow along the wall in a direction opposite to the direction of flow of the fluid through the duct.

Abstract: Preparation of new, useful and novel highly electro-conductive polymer compositions via the dispersion of electrically conductive particulates in conjunction with small proportions of certain organo aluminates, titanates and/or zirconates in polymeric substrates is hereinafter described. Further the production of heretofore unknown classes of organo aluminates, titanates and zirconates useful in the practice of this invention is disclosed and generically useful subclasses of these compounds defined. Advantages other than improved electrical conductivity of the resultant composites, i.e., process and physical property improvements are also documented for compositions containing said additives and particulate materials and/or composites in polymeric dispersions, and/or compositions of said particulates with said organic aluminates, titanates and zirconates.

Abstract: Actinic radiation curable coating compositions are provided requiring no photoinitiator or photocatalyst which are applicable to many substrates comprising a dipentaerythritol-based polyacrylate such as dipentaerythritol pentaacrylate, a cellulose ester such as cellulose acetate butyrate or a vinyl chloride-vinyl acetate containing copolymer. The compounds are preferably applied to the substrate by spraying a solution of the composition in one or more solvents selected from the group consisting of lower alcohols and esters, ketones having from 3 to 7 carbon atoms and lower alkyl Cellosolves, and removing the solvents. Roller gravure coatings may also be employed.Upon curing in air the compositions form extremely high abrasion resistant coatings on the substrate and are also characterized by being scratch resistant and resistant to attack by chemical and organic solvents and are stress crack resistant.

Abstract: Actinic radiation curable coating compositions applicable to many substrates and comprising a pentaerythritol-based polyacrylate or polymethacrylate such as pentaerythritol tetraacrylate, a vinyl chloride-vinyl acetate containing polymer, preferably a partially hydrolyzed vinyl chloride-vinyl acetate copolymer, and a photoinitiator are provided. The compounds are preferably applied to the substrate by spraying a solution of the composition in one or more solvents selected from the group consisting of lower alcohols and ester, ketones having from 3 to 7 carbon atoms and lower alkyl Cellosolves, and removing the solvents. Upon curing in air the compositions form extremely abrasion resistant coatings on the substrate.

Abstract: A novel method of automatically decorating articles as they are formed, in-mold, of heated plastics flowing within and filling mold cavities. Pursuant to the invention an elongated tape or strip of decorating material is automatically advanced and pre-fed and positioned in the molds at each molding cycle, interfacing therein automatically with the plastics as they fill the molds under heat and pressure; as the article is thus formed, the decorating material forms therewith a unitary, permanent decorating part thereof.

Abstract: A separable fastening device is provided comprising a pair of clasping members, each of said members being comprised of a rigid, bendable material having a central aperture extending therethrough and at least one substantially flat edge section, each flat edge section having;(a) an internal angular notch;(b) an external angular notch; and(c) a slot in said edge section connecting with the vertexes of said internal and external angular notches and dividing said edge section into split end portions, said slot having a gap less than the thickness of the edge section of the other of said pair of clasping members.

Abstract: The invention provides a novel cold source for a Rankine cycle system which employs the use of cold seasonal temperatures to form an ice bed and which allows insulation of said ice bed from warm seasonal temperatures, the cold source comprising a container having an insulated side wall and an insulated bottom; a ventilated top wall mounted above said side wall, said top wall permitting a flow of external air to said container; means associated with said top wall for controlling the flow of external air to said reservoir; an insulated cover mounted on said top wall, a grate extending across said reservoir above said bottom defining a space for containment of a body of water; and means associated with said reservoir for spraying water into said reservoir. The invention also provides a novel turbine, condenser and evaporator assembly, and a magnetically-actuated fluid pump which may also be used for Rankine Cycle Systems.

Abstract: A process for treating a cyanide and cyanate-containing aqueous influent such as a wastewater stream is provided. A two-stage method is included for destroying a cyanide-containing influent which comprises;(a) introducing said cyanide-containing influent into a first ozone-contacting zone;(b) contacting said influent in said first zone with a second ozone-containing gas, at least a portion of said second ozone-containing gas comprising a first ozone-depleted gas withdrawn from a second contact zone to form a first cyanide-depleted effluent and a second ozone-depleted gas;(c) introducing said first cyanide-depleted effluent into a second ozone-contacting zone;(d) contacting said effluent in said second zone with a first ozone-containing gas to form a second cyanide-depleted effluent and a first ozone-depleted gas;(e) withdrawing said first ozone-depleted gas from said second contact zone; and(f) withdrawing said second cyanide-depleted effluent from said second zone.

Abstract: The present invention provides a method of forming a coating on molded polymeric articles formed by curing a polymerizable monomer-containing molding composition in a mold comprised of a material having less bonding affinity for the abrasion-resistant coating than for the cured molding composition. The method comprises:(a) applying to a mold a coating composition comprising a pentaerythritol based polyacrylate or polmethacrylate and, a cellulose ester or a vinyl chloride-vinyl acetate containing copolymer;(b) exposing said coating composition to actinic radiation to form a cured coating;(c) adding to the mold a heat polymerizable monomer-containing molding composition; and(d) polymerizing said molding composition in the form of a molded article, said cured coating bonding to the surface of said molded article.

Abstract: An apparatus for forming concrete articles of uniform density, which includes means for forming concrete into the form of the articles, and means for sensing the density of concrete in each area of formation in the forming means as the article is being formed, comparing the sensed density to a preset density, and compensating for variation of the sensed density from the preset density responsive to such comparison, such that the density of concrete in each area of formation in the forming means as the article is being formed equals the preset density.

Abstract: A vehicle for snow and ice which is ridden by standing thereon is provided with a boat-like hull section having a bottom and curved upwardly at its forward and after ends. At least two outer longitudinal runners are located on the outer portions of the bottom. Preferably, a center longitudinal runner is located between the outer runners and may extend to the forward and after ends of the hull section. To accommodate the feet of a rider, forward and after platform members are mounted on each end of the hull which members are preferably tilted upwardly. A center platform member is mounted atop the hull section between the forward and after platform members.In other embodiments, a portion of the center runner at its forward end is serrated to allow frontal pivoting and acrobatic exercises.

Abstract: A chimney fire detector has a pair of entwined conductors mounted at the outlet of the chimney. A sensing device can detect electrical contact between these conductors. An insulating spacer is mounted between these conductors for separating them. This spacer is formed of material which allows the conductors to pass through the material and touch in response to temperatures in excess of a predetermined magnitude. This predetermined magnitude corresponds to the temperature at the outlet of the chimney during a chimney fire.

Abstract: There is disclosed a battery with a separator of ethylene-vinyl alcohol copolymer. Inert filler and plasticizer can be used. The separator can be used in acid or alkaline electrolyte.

Abstract: Actinic radiation curable coating compositions are provided applicable to many substrates comprising a pentaerythritol-based polyacrylate or polymethacrylate such as pentaerythritol tetraacrylate, a cellulose ester such as cellulose acetate butyrate and a photoinitiator. The compounds are preferably applied to the substrate by spraying a solution of the composition in one or more solvents selected from the group consisting of lower alcohols and ester, ketones having from 3 to 7 carbon atoms and lower alkyl Cellosolves, and removing the solvents.Upon curing in air the compositions form extremely abrasion resistant coatings on the substrate and are also characterized by being scratch resistant and resistant to attack by chemical and organic solvents.

Abstract: A device for producing photographic prints on a printing medium such as an instant developing film pack from a transparency is provided comprising a housing having an image forming chamber in the forward section thereof containing a lens, a flash tube, opalescent glass plate and a slide holder. A holder for the film pack is located in a rear light-tight chamber formed in the housing and a mirror is located at the bottom of the light-tight chamber angled so as to reflect the image formed in the image forming chamber onto the film pack.

Abstract: A ball holder, particularly a tennis ball holder, capable of retaining one or two balls and easily attachable to the clothing is provided in which the two ball holder comprises a vertical strut member; an upper planar ball retaining member extending outwardly from the upper edge of said strut member; a lower planar ball retaining member extending outwardly from the lower edge of said strut member; and a cylindrical ball retaining member joined to the central portion of said strut member and lying between said upper and lower planar ball retaining members. The holder preferably employs elastic ball retaining members which extend from the outer regions of the planar ball retaining members to the cylindrical ball retaining member. A single ball retaining member is provided having a lower planar ball retaining member, arched ball gripping members and elastic ball retaining members.

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.