Abstract: A multiple article package is disclosed wherein a plurality of articles such as folded basket beverage containers having a lenticular shape are tightly banded together in a lenticular shaped bundle by at least one diagonally positioned band. The tightly banded lenticular shaped bundle of articles then are packaged in an outer restraint with the articles being utilized to carry the weight of similarly packaged articles that may be loaded on top of the outer restraints. The method utilizes the banded carriers along with the outer lightweight non-load bearing restraint to provide a novel packaging method for shipping the plurality of folded basket beverage carriers to the customer. The invention may be utilized with many types of lenticular shaped articles including the beverage containers shown in the drawings.

Abstract: This invention relates to the measurement of the temperature and/or mass flow rate of a free falling molten stream of material. Previous techniques have not recognized the effects temperature variations of the molten stream of material have on the measurement of the above flow properties. The present invention utilizes a line scan camera having photodiodes disposed in a predetermined array to measure the temperature and mass flow rate of a moving mass of molten material. This is accomplished in the present invention by limiting the maximum voltage generated by any one photodiode exposed to light energy of a mass by varying the scan rate and thus the exposure time of the photodiodes in response to a variance in the light intensity and thus the temperature of the molten mass of material.

Abstract: A thermal insulation device for insulating irregularly shaped objects such as pipe flanges and fittings is described which comprises a flexible thermal insulation member of specified dimensions adhered to a cover sheet and also containing detection means for detecting leakage from the flange or fitting to be insulated. The device is removably attached to the flange or fitting by securing means. The device thus provides efficient thermal insulation of pipe flanges, fittings and the like while permitting easy and prompt detection of any leakage from within the structure.

Abstract: The present invention comprises a low-cost, convenient to use anti-punking binder system for use in bonding entangled masses of mineral fibers such as glass. The binder system comprises a phenolic-formaldehyde resin mixed with a water soluble urea-formaldehyde resin; the urea-formaldehyde resin content in the binder system comprising an amount of about 5 to 50% by weight of the binder solids content. The urea-formaldehyde resin comprises about 59% urea, about 19% formaldehyde and about 22% water by weight. Silane, ammonia and ammonium sulfate may also be added.

Abstract: A process for the rapid annealing of refractory fiber is disclosed. Air at a temperature of 750.degree. F. (400.degree. C.) to 1400.degree. F. (760.degree. C.) is passed through a refractory fiber body for a period of 5 to 200 seconds while the body is held securely in place for dimensional integrity. Apparatus for performing the process of this invention comprises an annealing unit containing opposed foraminous platens and means for passing hot air through the platens and through the fiber body retained between the platens or opposed foraminous belts and adjacent conduits and means for passing the hot annealing air through the conduits and belts and through the fiber body retained between the belts. The process and apparatus may be used to produce fiber bodies of a single material or laminated bodies of a plurality of interlocked layers, which may be of different fiber materials.

Abstract: Apparatus for grinding a helical cutting surface on a flat cutting blade. Prior art grinders are complex, difficult to operate and expensive to use. The present grinding machine comprises a stationary support (74), a grinding arbor (76), an adjustable cam plate (78), a grinder carriage assembly (80), a grinder assembly (82), cam follower (112), mounted on the grinder carriage assembly (80), and a grinding stone (128) mounted on the grinder carriage assembly (80). When the carriage and the grinding stone are reciprocated along the axis of rotation of the grinding arbor the cam follower (112) contacts the lower surface of the cam plate (78) whereby the grinding arbor is oscillated about its axis of rotation and a helical cutting surface is ground into the blade (34).

Abstract: A process and apparatus therefor are described for the expansion of perlite utilizing vaporized heavy liquid fuel as at least half, and preferably all, of the combustion fuel. In this process preheated air is used to vaporize the liquid fuel, which has previously been atomized.

Abstract: The invention relates to batch feeders for furnaces. Heretofore batch feeders have been complex, expensive to construct, use and maintain and have not ensured a uniform deposition of particulate batch material onto the batch cover in the furnace. The present invention provides a method and apparatus for obtaining a uniform layer of batch material by moving a particulate-covering trough 62 over a desired area. Disposed within the trough 62 is a feed means 80 having a cavity at one end with an opening in alignment with a discharge opening in the trough. The sidewalls defining the cavity have a plurality of perforations 87 therein. The other end of the feed means is connected to a vibrator so that as the vibrator is vibrated the one end of the feed means moves back and forth through the particulate material in the trough 62. The particulate material is forced through the perforations 87 in the feed means 80 and falls, under the influence of gravity, towards the desired area.

Abstract: The present invention relates to a luminaire and more particularly a downlight for industrial lighting applications. Energy considerations, lowered ceiling heights, and greater demand for illumination uniformity has resulted in a demand for a versatile and efficient downlight. The present invention anticipates providing a reflector, lamp, and refractive lens construction which utilizes an incrementally painted reflective surface to provide a versatile spacing between each downlight in an array, using the same basic downlight configuration. The refractive lens includes prismatic refractor elements which reshape the downwardly directed conical beam of light to provide even more uniform illumination when used in conjunction with the plurality of such downlights arrayed in an industrial lighting situation.

Abstract: A method of fastening a sheet of material to a support by first positioning the sheet material adjacent the support, cutting an elongated slot in the sheet material while embedding a portion of the sheet material in the support, securing a fastener to the support by moving a first fastener portion into frictional engagement with the support, positioning a second portion of the fastener to extend through the slot and providing a fastening portion to the fastener is disclosed. The slot is larger than the portion of the fastening means positioned therein so as to permit relative movement between the sheet material and the fastening means. This capability for relative movement between the sheet material and the support accommodates for thermal expansion and contraction of the sheet material thereby preventing binding and buckling of sheet material while retaining its alignment on the support.

Abstract: A process is disclosed for improving the dispersability of siliceous (preferably diatomite) filter aid particles in hot (i.e., 140.degree. F. or higher) aqueous acid systems used in the "wet process" formation of orthophosphoric acid from phosphate rock. In this process the filter aid particles are prewetted with water to cause the adsorption of 15 to 75 weight percent of water on the filter aid prior to dispersing the prewetted filter aid in the acid system.

Abstract: The present invention relates to the field of roof coverings, specifically laminated roof shingles formed of mineral granule covered, asphalt saturated felt material. The disclosed shingle when combined with other shingles on a roof deck simulates a tile covered roof. This simulation is accomplished by making a generally rectangular laminated shingle having a headlap portion and an exposed butt portion made up of a regular uniform series of substantially identically shaped tabs with spaces therebetween defining exposed portions of an underlay member attached to the lower surface of the tabs. The lower edges of these tabs and spaces define a butt edge having a generally continuously curving sinuous contour. The tabs have generally straight sides which taper from this butt edge to the lower edge of the headlap portion. A plurality of such shingles are placed on a roof deck such that the tabs are aligned vertically up the roof deck and the spaces between these tabs are also vertically aligned.

Abstract: A shipping container is disclosed which allows the user to ship two levels of product in the container. The first level is available when the container is folded to a first compact use size while the second level is available when the container is folded to a second expanded use size.

Abstract: A glass fiber article having enhanced alkali resistance is described. The glass fiber has thereon a coating comprising zinc stearate and a film forming polymer with the coating being present in an amount of 1 to 60% by weight of solids based on weight of the glass fiber. The polymer is preferably initially in the form of a latex and is selected from the group consisting of acrylic terpolymers, vinyl acetate/ethylene copolymers, vinyl acetate/vinyl chloride/ethylene terpolymers, urethane polymers and epoxy polymers. The glass fiber is used at a rate of approximately 5% to 20% as reinforcing fiber in Portland cement and other alkaline cementitious composites. Such composites are also described, as is a method of imparting alkali resistance to glass fiber by applying such coating to the fiber.

Abstract: A device is described for support of electrical heater elements in a furnace thermally insulated by blocks of fibrous insulation and heated by the electrical heater elements. The device comprises a bar shaped member disposed at the hot face of the block and having element support means therewith, the member being releasably secured in position by securing means integral with the block.

Abstract: An apparatus and its method of use are described for the preparation of samples for organic material analysis, especially for gas chromatographic analysis. The samples in question are samples of organic materials (usually in trace quantities) which have originally been dissolved in water. In the process and apparatus of the present invention each sample is initially transferred to an adsorbent material from which it is in turn transferred to an organic solvent (which may be subsequently dried) and collected and from which the chromatographic analysis sample can later be withdrawn.

Abstract: A bulk material container is disclosed which includes an exterior body and an interior body having separation means associated with the exterior and interior bodies to provide protection from punctures and to provide for expansion of the products packaged within the interior body. The interior body comprises a first inner liner and a second outer liner laminated together in a predetermined manner to provide a stress reduction means in the interior body. The stress reduction means is formed by offsetting the inner and outer liner manufacturing joints from each other a predetermined distance to provide a triple thickness at the two manufacturing joints along a portion of one of the upstanding walls of the interior body. A topcap with water proofed corners and a retention area for a banding strap may be used with the container and when used the topcap also has means for being interlocked to the exterior body of the bulk material container.

Abstract: The bell end of a bell and spigot joint is disclosed herein and includes an end section of a plastic pipe, an axially extending circumferential insert located concentrically within this end section, and a circumferential sealing gasket located within a groove in the inner surface of the insert. A method of making this bell end is also disclosed.

Abstract: An improved elongated coating rod holder for a coating doctor apparatus wherein the rod holder has formed therein an elongated cavity for receiving the coating rod with the cavity comprising at least two sealing surfaces therein. The coating rod holder also has formed therein a cooling water chamber formed as a plurality of smaller chambers having an interconnecting passageway between adjacent chambers. The cooling water chamber is formed directly below the elongated cavity which is connected to at least one cooling water inlet and at least one cooling water outlet formed in the rod holder.

Abstract: A batch material feeder for an electrically heated opentop refractory furnace, particularly a circular furnace, wherein the feeder includes a trough holding batch material and mounted over the furnace top, there being a rotatable agitator within the trough for moving batch material over discharge openings in the trough bottom, so as to deposit the batch material over the top of the molten mass in a manner that provides for a thin uniform layer of batch while assuring proper control of the thickness of the deposited layer.