Abstract: A fishing leader storage device having deep, generally opposed pairs of winding slots located on opposite sides of the device to receive the leader; and having an elastic spanning element located within and across the winding slots to provide tension to hold taut the leader which is wound on the device over the spanning element within the winding slots. The winding slots act to both pilot the leader wound on the device, and are deep enough to leave clearance for deflection of the spanning element under the tension exerted by the leader wound on the device. Between adjacent slots are located posts which may accept a loop on the end of the leader. The free end of the leader may be held under one of a plurality of elastic retaining elements extending between opposing pairs of winding slots and running parallel to the winding direction of the leader. The winding plan surfaces of the device may be made convex to improve the holding power of the elastic retaining elements.

Abstract: An aerosol dental indicating paste comprising oils, such as glycerides, blended with indicating powder, such as zinc oxide, to form a soft, creamy paste which is mixed with a liquid hydrocarbon which acts as both a solvent and a propellant for the dental indicating paste and permits the paste to be dispensed from an aerosol spray can in the form of a mist or spray of fine particles. The dental indicating paste is used to locate high spots, contact areas and pressure areas on dentures and dental castings. In use, the dental indicating paste is sprayed on the denture or casting to form a thin coating thereon. The coated denture or casting is then placed in its desired location in the patient's mouth, after which it is removed. Disturbances in the dental indicating paste indicate the location, size and elevation of the problem areas.

Abstract: A reusable penetration seal for sealing a hole in a wall through which a conduit passes, without the need for the use of gaskets or gasketing or sealing materials. The penetration seal comprises a hollow penetration sleeve having a head at one end with an inwardly directed circular knife edge for sealing against the wall, and having a threaded shank; a compression nut for securing the penetration sleeve to the wall and for forcing the knife edge firmly against the wall to form a bite seal therebetween; a ferrule for sealing the conduit which passes through the hollow penetration sleeve; and a seal nut for being threaded to the end of the shank of the penetration seal to compress and seal the ferrule, conduit and penetration sleeve together in a compression seal.

Abstract: A fluid jet cutter using an articulated boom support system is disclosed. The cutter utilizes a support system which allows rotational translation in all three axes. The boom system allows displacement of the cutter over a broad area. A jet catcher is attached to the cutter head to catch the cutting jet. A deadman switch arrangement prevents the operator from contacting the cutting jet. A vacuum system is linked to the catcher and a column that supports the boom to remove cutting debris and waste fluid.

Abstract: An improved manhole service vehicle having an enclosed working space and an opening in its floor sized at least as large as a work man to permit him to service a manhole while the service vehicle shelters both the workman and the manhole. A laterally movable platform having a work opening is located over the floor opening to permit the final alignment of the work opening with the manhole after a metal detector located in a lid placed in the work opening permits the initial positioning of the service vehicle and the work opening over the manhole. A safety liner extending from the work opening into the manhole and a breakaway frame surrounding the floor opening help to ensure the safety of the workman should the service vehicle be hit by another vehicle. A side mounted hoist support within the vehicle permits placement of the safety liner into and out of the floor opening. Leveling jacks operable from within the service vehicle ensure the stability of the service vehicle once in position.

Abstract: A hydraulic underground mining system for operating through a small diameter borehole into a subterranean body. An elongated mining tool includes a liquid jet nozzle that is movable in a vertical direction along the length of the mining tool for forming a directed jet stream to impact material in the ore body and convert the material into a slurry. An orifice is positioned below the jet so that slurry flows into the orifice, the latter being connected to a jet pump which returns generated slurry to the surface. Suitable hydraulic power means are provided for operating the jet pump and for moving the jet stream in vertical and circular directions. Means for monitoring and controlling the progress of mining and the condition of components of the system are provided to monitor and control the system from a centralized location.

Abstract: A seal for a movable shaft which extends from a cavity within a high-pressure vessel maintains a uniform gap between the shaft and the seal body at high pressures to form an effective seal while providing adequate clearance between the shaft and the seal body to prevent excessive wear.

Abstract: A storeroom bin marker which includes a base member having indicia thereon, and a rotatable view blocking member which can be selectively rotated to cover some, all, or none of the indicia, to thereby indicate the supply or reorder status of a stocked item. The base member has front and top panels at right angles with respect to each other, and is designed to fit over the front and top edges of a storage shelf. The bin marker has mounting holes in its front and top panels which can be used, with an elastic cord member, to secure the bin marker to wire shelves; or which can be used with screws to secure the bin marker to a solid shelf. Alternatively, the bin marker can be adhesively mounted to solid shelves. The front panel of the bin marker is provided with a pair of parallel, spaced apart bin label retainers for releasably holding a replaceable bin label.

Abstract: A fast warmup, high capacity, no splash, self-cleaning humidifier for a proof box. The device has an aluminum steam generating heater pan including at least one electrical heating element cast into its base. A reservoir and a float controlled valve attached to the heater pan by a dog leg conduit keeps the level of water in the heater pan at a depth of about one-half inch. The heater pan is mounted for rotation about a horizontal axis, and a drip pan is located beneath the heater pan. For cleaning of accumulated minerals, scale and the like from the heater pan, the heater pan is allowed to heat to over 212.degree. F. while dry. Cooler water from the reservoir is then suddenly added to the hot, dry heater pan resulting in the removal of said accumulated minerals, scale and the like from the heater pan due to thermal shock and the vigorous boiling of the added water. The contents of the heater pan are then dumped into the drip pan by rotating the heater pan about said horizontal axis.

Abstract: An auxiliary fuel system for installation beneath the rear portion of the floor pan of a passenger car. The auxiliary fuel tank in the system is resistant to leakage even when the car in which it is installed is subjected to a rear end collision. The system increases the survivability of the auxiliary fuel tank by the use of transversely extending support straps which permit the longitudinal forward and downward movement of the auxiliary tank during said collision, to thereby help prevent its being crushed. The tank's ability to move downwardly as it moves forwardly during said collision is enhanced by the tank being provided with a sloping front wall which deflects the front of the tank downwardly as it encounters a transverse member in the car, and by the tank also being provided with a large, relatively shallow fuel storage area designed to bulge during said collision, thereby also tending to force the tank downwardly away from the car.

Abstract: An alignment system with a variable reactance element is provided for detection of the angular alignment of two variably positionable members. The variable reactance elements form two oppositely varying impedances. A preferred embodiment of the variable reactance element consists of a pair of inductive coils mounted on a core element which forms a flux path for each coil. The core has an integral, deflectable central member which forms a common flux path for both coils. Air gaps within the flux path of each coil are located on either side of a central member of the core. Another variable reactance consists of a first inductive coil having a fixed core element forming a partial flux path for the inductive coil and a movable core element positionable relative to the fixed core element with air gaps between the core elements. A second inductive coil having a similar associated core element from the first coil element.

Abstract: A check valve assembly adapted for connection to a high pressure reciprocating pump cylinder, comprising valve body means, inlet check valve means and outlet check valve means. The valve body means has an inlet end adapted for connection to the pump cylinder and an outlet end adapted for connection to a high pressure outlet line. The inlet end has a planar surface adapted to be exposed to the interior of the pump cylinder. The valve body means also includes a low pressure inlet passage opening in the planar surface for providing communication with a source of low pressure fluid and a high pressure outlet passage extending between the planar surface and the outlet end. Such passages are parallel to one another and spaced apart a distance at least as great as the radius of the high pressure outlet passage. The inlet check valve means is mounted entirely on the exposed planar surface in association with the inlet passage and prevents high pressure fluid backflow into the inlet passage.

Abstract: A multiple use container is made by modifications to a tapered wall, plastic, utility bucket and its associated lid. The parts may alternatively be specifically manufactured for the container. The utility bucket from which the container is made is of the type having reinforcing ribs about its upper sidewall. The bucket lid has a groove on its upper surface and a pair of concentric grooves on its lower surface. The bucket is cut along two horizontal lines to form a ring structure which may be split; an open top container; and a reinforcing ring which is inverted and placed around the upper edge of the open top container. The bucket lid is inverted with the upper edge of the open top container received in the single groove on what was the top of the bucket lid. Holes are placed in the lid. The ring structure is inverted and its rim is inserted in the outer concentric groove of the lid.

Abstract: A minimal parts, quick picture frame, for framing paintings, pictures, photographs, graphics, weavings, etc., for viewing, centers on the use of at least four framing pieces, i.e. two sets of opposite pairs, all made by cutting them from a continuous type plastic extrusion, formed to frictionally and resiliently grip the other components of the picture mounting composite. No additional hardware or fasteners are used to hold the pieces of the frame together, nor are tools needed, following the cutting of the extrusion. Selected lengths of these generally mitered cornered framing pieces all grip the edges of a picture mounting composite, comprising the overall assembly of a picture, painting, etc. and other related mounting material, such as backing boards, glass or clear plastic covering, etc.

Abstract: Embodiments of optical toys for reversing sighted images are used by individuals for their personal enjoyment and their enjoyment with others in playing games. When these toys are held closely adjacent to their eyes and then, while viewing the reversed scene before their eyes, they try to maneuver ahead, for example, to follow a reversed curved pathway. In a preferred embodiment, two right angle solid optical prisms are mounted in spaced relationship on a hand held housing, so one prism is opposite each eye, with one of its right angle sides positioned at a forty-five degree angle flaring outwardly, as its hypotenuse side is pointed directly ahead of the person. In another embodiment, instead of the solid optical prisms, multiple angled interconnected reflective surface units are arranged before each eye and they are respectively supported on an eyeglass-like frame. A timing device may be inserted in the housing when games are played in accordance with a preset game time period.