Abstract: A device for training an individual's putting game including a channel shaped guide member having an adjustable width, straight channel therein which extends the entire length thereof and which is open along its upper face and both ends thereof so as to reciprocally receive the head of a putter. The width of the channel is adjustable from a relatively loose fit with the putter head to a snug fit. The putter having a head of a predetermined width and a shaft which is angularly adjustable with respect to the head, and which may be adjusted and locked with repsect to the head by a user in a normal putting stance.

Abstract: A rock holding device, which can be mounted in a rock-saw vise in such a way that rocks gripped by this device are held firm and secure so they can be sliced by a lapidary (diamond-blade) saw. The device comprises a plate having slidably mounted thereon a finger with a first bevelled surface and bars fixedly mounted on the plate and having second and third bevelled surfaces facing the first bevelled surface.

Abstract: A diverging, smooth wall stand-off for an explosive shaped charge aligns generated gases into smooth flow enhancing of the formed jet substantially increasing the jet length effectively, the jet penetration, increasing the cleanliness of the developed hole, and the like. The shape of the stand-off to produce the enhancement is a frusto-conical tubular device, and preferably extends from about 13.degree. included closing angle at about 1.5 conical cavity diameters to about 30.degree. included closing angle at about 0.6 conical cavity diameters. The base of frusto-conical stand-off coincides with the base of the cavity of the shaped charge and the small end of the stand-off has an area of about two-thirds of the base. A small range on either side of the optium or preferred frusto-conical stand-off provides a highly effective enhancement for the shaped charge.

Abstract: A perforated, inner pan nests completely within an outer non-perforated open top pan and a cover encloses the opening of the outer pan and contained inner pan. The opposed ends of the perforated pan are hinged so as to open flat in the plane of pan's bottom, and handles on the hinged ends provide manipulation of the inner pan without opening.

Abstract: A slidable pin, in a gun breech bolt, impinges on a chambered cartridge sliding rearwardly, striking the arm of a pivoted angle indicator raising an indicator surface above the bolt in view of the user. A spring detent normally holds the pin forwardly so as to not strike the indicator when no cartridge is in the chamber.

Abstract: A tubular inserter/extractor and a packet of down. The packet includes a tubular, film package permanently sealed at one end, and at the opposite end has two elongated tabs extending beyond a releasable seal. The packet is placed in the tubular inserter/extractor and the two tabs are pulled backward along the extractor, after opening the packet by the releasable seal, to turn the packet in-side-out and release the down contained in the packet.

Abstract: A gas, formed as a product of a pyrolysis of oil shale, is passed through hot, retorted shale (containing at least partially decomposed calcium or magnesium carbonate) to essentially eliminate sulfur contaminants in the gas. Specifically, a single chambered pyrolysis vessel, having a pyrolysis zone and a retorted shale gas into the bottom of the retorted shale zone and cleaned product gas is withdrawn as hot product gas near the top of such zone.

Abstract: Continuously determining the bulk density of raw and retorted oil shale, the specific gravity of the raw oil shale and the richness of the raw oil shale provides accurate means to control process variables of the retorting of oil shale, predicting oil production, determining mining strategy, and aids in controlling shale placement in the kiln for the retorting.

Abstract: An assembly securely mounted to a wheel of an automotive vehicle to provide continual availability of cleats to be fitted around the treads of a tire for use in driving an automotive vehicle through mud or snow. The assembly consists of a cylindrical plate with a series of round through holes for affixing to a range of automotive wheel configurations with elongated lug nuts and bolts, a series of L-shaped brackets securely affixed around the outside perimeter of the mounting plate, a spring-loaded telescoping shaft extending from each L-shaped bracket parallel to the outside of a vehicle tire, a cleat affixed on the outside end of each telescoping shaft, so that each cleat can be locked in position around the tire treads with the telescoping shaft in the telescoping position and with each cleat further being placed in a locked position near the side of the tire when the telescoping shaft is in a retracted position so as to be out of the way when not in use.

Abstract: A hollow, imperforate chamber arranged to be connected to a cylinder, includes a gas pressure deformable membrane detector providing means to actuate a signal indicating pressure in the cylinder produced by a piston moving in its compression cycle. The detector is connected into the electrical system of the engine to utilize its lights or horn as an indicating signal.

Abstract: An open top housing member, the top being arranged to be closed by a solar radiation transparent covering, is arranged to be mounted in side by side and end to end relationship with similar members to provide a large area solar heat absorber unit, and each housing member includes passageways for the flow of fluids, such as air, and means for joining the members at the passageways, thereby providing an inlet fluid manifold at one edge of the combined housings and an outlet fluid manifold at the opposite edge of the housings providing the transfer of heat absorbed by the unit to the transfer fluid. Generally, the housing members are made of lightweight sheet metal and may be secured together either by crimping edges and flanges of adjoining members or lateral mechanical pressure at the passageways, and each is provided with an adjustable gate member for varying the flow pattern of the fluid through each individual member.

Abstract: In a solar heat collector, a corrugated screen or a transverse series of perforated plates, on the underside of a heat absorber plate and heated by conduction and radiation from the absorber plate. The screen or perforated plates increase the surface area for heat transfer, especially to air, and produce turbulence of the heat transfer medium to increase heat transfer therefrom and also from the underside of the absorber plate. The screen or perforated plates are also adapted to support the heat absorber plate in a desired position.

Abstract: A method of driving a shaft, or tunnel into competent hard rock with shaped charges. An array of shaped charges to nearly conform with the bottom of the shaft, or face of the tunnel, is carried upon a framework which places the charges a proper distance from the bottom or face surface. Detonation causes the shaped charge jets to penetrate and break several feet into the rock to advance the shaft or tunnel. The loose rock may then be mucked out of the shaft, or tunnel, and the operation repeated. A shaft may be driven downwardly or upwardly by these operations.

Abstract: A compaction roller pivotally mounted on an extensible boom-type support, arranged to be lowered at a predetermined angle into an excavated ditch, having control means for changing the angle to a horizontal position and the length of the boom.

Abstract: A portable viscometer, used in conjunction with a belt mounted computer, for making field viscosity measurements and for taking samples of various liquids such as paint mixes, asphalt cements, liquid asphalts, asphalt, emulsions, etc. A disposable cup, arranged at the bottom of a frame, permits the frame to be immersed in the fluid to be tested, a sample cup holder with fluid level probes is moved into position under the disposable cup and releasable stopper means permits fluid to drain from the disposable cup into the sample cup, with the computer timing the flow, and measuring the temperature.

Abstract: A method of designing the gas flow parameters of a vertical shaft oil shale retorting vessel involves determining the proportion of gas introduced in the bottom of the vessel and into intermediate levels in the vessel to provide for lateral distribution of gas across the vessel cross section, providing mixing with the uprising gas, and determining the limiting velocity of the gas through each nozzle. The total quantity of gas necessary for oil shale treatment in the vessel may be determined and the proportion to be injected into each level is then determined based on the velocity relation of the orifice velocity and its feeder manifold gas velocity. A limitation is placed on the velocity of gas issuing from an orifice by the nature of the solid being treated, usually physical tests of gas velocity impinging the solid.

Abstract: An upright mold for forming planar, thin, flexible, elastomeric liners for large modular concrete forms, to produce surface textured concrete walls and the like, includes a positive master of a flexible elastomeric material, secured to a planar, rigid backing, having normal extending, integral gasketing flanges on three sides, a modular form member having a planar surface mounted in the extending flanges, and means for temporarily securing said modular form member in sealing relation to said flanges and with its planar surface spaced a predetermined distance from the master. Liquid polyurethane precursor is poured into the mold form top side permitting trapped air in the liquid to travel to the surface of the modular form member and upwardly out the top of the mold. A small reservoir of the liquid may be maintained at the top of the mold to insure positive pressure of liquid into the mold for the complete filling of the spaces of the mold with the liquid precursor.

Abstract: A tube for implantation in an animal organ or cavity, for example, an eye, communicates with the anterior chamber of the eye and terminates in a unilateral pressure dependent valve shunt positioned outside the anterior chamber. Lateral side arms secured to the tube provide fixation means to the eye.

Abstract: A fingertip ring includes an extending member having a slot and a yarn opening therethrough for automatically tensioning yarn passing through the opening and used during manual knitting, crocheting, or the like.