Abstract: In a process for recycling asphalt and aggregate containing composition, the improvement comprises separating the composition into a plurality of portions having different particle sizes, ranging from coarse to fine, introducing the particle portions into different mixing and heating drums, one of the drums being for the coarse particle portion, and one or more additional drums for smaller particle portions, and heating the particles in the respective drums with hot gases of combustion at temperatures below that which will burn the asphalt particles in each of the respective drums.

Abstract: A hanger for holding implements such as garden tools comprises a mounting bracket and a gripping member connected by a flexible cord. An aperture in the gripping member receives the tool handle, which is held in the gripping member by friction. The friction grip may be endhanced by having a slight angle in the gripping member, and by applying a frictional surface, such as a rubber grommet, ridges, or the like, to the edges of the aperture.

Abstract: An apparatus for producing a simulated three-dimensional psycho-image from a conventional two-dimensional image comprises a screen of transparent material having integral, alternate layers of materials with varying optical properties which enhance image contrast and provide an image bisection to produce an illusion of a three dimensional scene without the need for supplemental viewing glasses or similar devices. Alternate embodiments simulate Fresnel lens performance and provide color conversion.

Abstract: In a mixing apparatus for asphalt-aggregate compositions including a rotatable cylindrical drum and utilizing an input end for introducing composition and an opposite output end for recovering or removing composition from the drum interior, the improvement comprises a final mixing chamber comprising a sleeve extending around the drum exterior adjacent the output end and rearwardly along a portion of the drum length with the drum exterior and sleeve defining the final mixing chamber, a plurality of fins or paddles secured to the rotatable drum exterior for mixing composition in the final mixing chamber and which fins assist in directing and removing composition along and from the mixing chamber.

Abstract: An improved utility pedestal is a completely enclosed, ground-mounted container adapted to hold multiple utility metering and shut-off devices for a plurality of users. Partitions inside the pedestal separate the interior into a series of user-accessible compartments containing valves and connections, and separate locked compartments which contain metering devices and which are accessible only to the appropriate utility company. The enclosed meters are readable through transparent windows in each locked section. Incoming and return conduits to the pedestal are guided by a preformed template.

Abstract: An automatic flushing device for an evaporative cooling system contains a water sump, circulating pump, and float-operated water makeup source. A small, adjustable portion of the return flow enters a separate timing reservoir. When the timing reservoir is full, water from the well and the sump are flushed from the system through a siphon tube which communicates with both chambers.

Abstract: In an apparatus for heating and mixing asphalt-aggregate composition in a rotating cylindrical drum by contact with a plurality of elongated heating tubes extending along the drum interior, the improvement comprises introducing coarse particles of the composition at a relatively cool end or area in the drum and introducing smaller sized composition particles in a relatively warmer area of the drum.

Abstract: A protective eye shield for patients during surgery comprises a flexible face mask, preferably soft, foamed plastic, for lying across the patient's brow or forehead, around the eyes and upper cheeks, and across the nose bridge, and having a pair of openings covered by transparent eye covers secured to the mask member, and a contact adhesive inner surface for securing the periphery of the mask to the face of the patient.

Abstract: A device for killing insects comprises an elongated handle and a plurality of elongated flexible strands or filaments having one end secured to one end of the handle.

Abstract: An alloy composition comprises lead, tin and zinc, each being present in an amount of between about 20 and about 45% by weight. Preferably, the composition also contains small amounts of up to about 0.1% each of copper and tellurium. When in contact with water or other aqueous composition, the alloy generates a current directly proportional to the alloy surface area exposed to the liquid.

Abstract: Asphalt-aggregate compositions are prepared in an elongated cylindrical drum having a plurality of hollow heated and spaced pipes extending therealong. Aggregate and asphalt are introduced into the drum at one end, the drum is rotated thereby mixing and heating the components and the finished composition is withdrawn at the other drum end. The apparatus includes a heating chamber at one end of the drum which communicates with the hollow pipe interiors and includes means for venting at least a portion of unburned hydrocarbon volatiles, smoke and gaseous mixtures from the heated composition into the heating chamber for further combustion while steam or water vapor are vented from the other end of the interior drum chamber.

Abstract: An improved asphalt-aggregate recycling process includes heating asphalt-aggregate composition by direct exposure to hot gases of combustion to form a gaseous exhaust mixture of carbon dioxide, water vapor and hydrocarbon volatiles from the heated asphalt, subjecting the gaseous mixture to a centrifugal force sufficient to separate the mixture into a first layer comprising a major amount of the hydrocarbon volatile condensate particles, and a second layer comprising a major amount of the carbon dioxide and water vapor. The first layer containing the condensed hydrocarbon volatiles is then separated out and preferably directed to a hydrocarbon burner as fuel for heating the asphalt-aggregate composition. The improved apparatus improves means for centrifugally physically separating the hydrocarbon from the gaseous mixture.

Abstract: A spring bias spacing attachment for a portable electric router is placed between the router motor and the base of the router. The attachment, which comprises two concentric rings separated by a series of springs, is slidably mounted over the skirt of the router motor housing prior to inserting the motor into the router base. By exerting pressure on the upper portion of the spacing attachment, the router operator may continuously vary the depth of cut of the router as cutting proceeds.

Abstract: In an apparatus for heating and mixing asphalt-aggregate composition in which composition particles are exposed directly to hot gases of combustion, a plurality of lifters are secured around the drum interior surface adjacent the input end of the apparatus where flame and hot gases of combustion are supplied, opposite the output end, and a space is provided between the lifter surface and the interior drum surface, whereby coarse composition particles are alternately lifted and dropped by the lifters as the drum rotates, and any fine composition particles pass along the space between the lifter and drum interior surfaces. In another embodiment, a barrier plate is provided across the hollow drum interior, and having peripheral edge spaced apart from the drum interior surface, and behind which plate fine composition particles are introduced.

Abstract: An improved asphalt emulsion composition comprises an oil phase having minor amounts of gilsonite and naphtha and a major amount of asphalt, and a water phase having water and a small amount of a cationic emulsifying agent, wherein the ratio between the oil and water phases is between about 1:1 and 2:1 by weight respectively, the asphalt having a distillation residue penetration of less than 40 dmm at 77.degree. F (25.degree. C).

Abstract: A fire escape device includes a portable spool journalled in a casing including a safety hook for suspending the spool from an eyebolt installed in elevated relation to ground level. A support line is wound about the spool and includes a body harness at its free end. For retarding rapid descent of a human body in the harness, a cylindrical rotor extends coaxially from the spool for joint rotation therewith. The spool lies within a cylindrical cup supported by the casing defining a fluid tight chamber coaxially about the rotor. The chamber is filled with a viscous fluid to provide viscous friction forces in the circumference of the rotor. The viscous fluid is dimethyl siloxane having a density between 0.65.times.10.sup.6 and 2.0 .times. 10.sup.6 centistokes and the annular gap between the rotor and the cup is chosen to achieve a descent rate ranging between 3 and 5 feet per second for a human body weighing 250 pounds.

Abstract: Apparatus for continuously displaying a visible message comprises a case for housing the components having a window or port through which the message is displayed, a storage reel for continuously taking up and playing out a continuous tape having a visible message thereon and a drive means for driving the tape from the reel, past the window, and back onto the reel.

Abstract: A collapsible overhead enclosure or shelter, especially for swimming pools or to serve as garages, storage sheds or the like. The enclosure consists of a pair of spaced base members and a plurality of shaped struts spanning between the base members mounted thereto at hinge points for swinging movement between a collapsed position and fan-like erected position. The hinge points are arranged in an arcuate pattern on each base member. A sheet of flexible material is supported by the struts and provides an overhead shelter or enclosure when the struts are in their fan-like erected positions. Alternate embodiments include the uppermost mounted strut being articulated at opposed locations so that it may lie flat on the ground when the struts are erected. Further alternate embodiments include reciprocal mounting for the base members whereby they may be moved to one location to collapse the shelter and to avoid interference with a swimming pool or other area.

Abstract: Recycled asphalt-aggregate compositions prepared by adding a suitable amount of make-up asphalt to pieces of the used composition and heating the mixture in a rotating cylindrical drum by tumbling the composition over heated pipes as it is gradually directed towards an output end of the drum, the improvement comprising adding an amount of petroleum hydrocarbon to achieve a laid down asphalt penetration of between 25 and 300 dmn at 77.degree. F. A further embodiment of the improved process comprises venting a mixture of hydrocarbon gases and moisture vaporized from the hot composition mixture at the output end of the apparatus, condensing the moisture and removing it and returning the hydrocarbon gases to a combustion chamber for providing heat to the apparatus tubes.

Abstract: An improved asphalt emulsion composition comprises between about 10 and about 33% by weight gilsonite and between about 66 and about 90% by weight asphalt preferably having a penetration below 100, and preferably below about 75 dmm at 77.degree. F, a small amount of emulsifying agent, and water with the ratio of asphalt phase:water being between about 1:1 and 2:1 by weight, respectively.