Abstract: An apparatus for creating an illusion that a die has disappeared including a housing pivotally attached to a base member. The housing has an internal chamber and three doors formed on each side thereof leading from the exterior of the housing to the chamber. Doors are provided on the openings adjacent the ends of the housing for selectively closing or opening these openings. A collapsible die is provided for being selectively receivable into the housing, and is movable from an uncollapsed to a collapsed position for creating the illusion that the die has disappeared within the housing.

Abstract: A support assembly including elongated upper and lower parallel plates. A plurality of column supports separate and interconnect the parallel plates. A clamping assembly is supported by the plates, the clamping assembly having vertical and horizontal pressure screw assemblies. A vertical pressure screw assembly is mounted upon the upper plate adjacent each end thereof, and a horizontal pressure screw assembly is mounted upon the lower plate at each end thereof. Both vertical and horizontal pressure screw assemblies project into the space between the upper and lower plates. An annular flexible platform is attached to the lower plate adjacent each end thereof, beneath each vertical pressure screw assembly, and projects into the space between the plates. Lenses, which are to be fixed together by adhesive means to form a combination lens, are received upon a flexible platform, aligned by action of a horizontal pressure screw assembly, and pressed together by action of a vertical pressure screw assembly.

Abstract: A device for cutting, chipping and scraping compacted earth is disclosed. The apparatus is affixed to a prime mover for rotary engagement with the earth, whereby the compacted earth is selectively loosened and/or moved. The blade design disclosed is particularly useful for close accurate work around concrete forms and the like. Other embodiments are disclosed for large area grading.

Abstract: A pair of leaf plate members. A seat support structure includes upper and lower housing members with scissors linkage members extending therebetween, one leaf plate member being attached to the scissors linkage members and the other being attached to the lower housing. The leaf plate members abut at a pivot area. Adjacent the pivot area, portions of the leaf plate members form a weight adjustment control.

Abstract: A vehicle seat having a seat assembly and a height adjuster for altering the displacement of the seat assembly from the vehicle. The vehicle seat includes a support assembly which connects the seat assembly to the vehicle. The support assembly includes a plurality of pivoting members which bear the seat assembly. The height adjuster includes a biasing member which operates the pivoting members to elevate the seat assembly. The height adjuster also includes structure for selectively locking the pivoting members against movement, whereby elevation of the seat assembly is arrested.

Abstract: A sleeve having first and second interior surface portions. The first surface portion is threaded and communicates with one open end of the sleeve, and the second surface portion is smooth and communicates with the opposite open end of the sleeve. A bore is formed through the sleeve and the second surface portion thereof, and a set screw is threaded into the bore. The sleeve is first slipped, and then threaded, onto a first conduit, the conduit being first received by the smooth interior surface and then by the threaded interior surface. The end of a second conduit is then disposed adjacent the sleeve, and the sleeve is screwed back off the first conduit onto the second conduit until the first conduit is received by the smooth interior surface and the second conduit by the threaded interior surface. The set screw is threaded against the first conduit.

Abstract: An animal watering apparatus of a type having an inlet pipe connected to a source of water under pressure and an outlet valve which can be actuated by an animal to release water directly into the animal's mouth. A tubular casing is disposed around the water supply pipe. A conduit is disposed along side the water supply pipe within the casing and has a heating element therein for preventing the freezing of the watering apparatus. Still another conduit is disposed within the casing for allowing a power supply cord to be connected to the heating element. The casing being filled with an insulation material such a urethane foam. A baffle structure is provided in the water supply line for causing the water within the water supply line to continually circulate and thereby prevent a buildup of heat in the water which the animals are drinking and furthermore distributing the heat from the heating element along the entire water supply pipe so as to insure that it does not freeze.

Abstract: A wrist support for athletes is disclosed which prevents the wrist from "breaking" and insures proper follow through. The support device comprises a first rigid member adapted to engage the back of the hand, and a second rigid member adapted to be adjustably affixed to the forearm. The first and second members co-act through resilient biasing means which hold the first member in a rest position at between about 30.degree. and about 45.degree. to the second member.

Abstract: A device for collecting and removing samples by vacuum suction created in a tube with an opening at the bottom. The opening communicates with a connecting chamber that separates the vacuum tube fron two tubes, one inside the other, used to gather the required sample. An orifice permitting a jet of air to cross the connecting chamber and enter the vacuum tube aids in removing the sample from the two tubes. Angled partitions inside the inner tube aid in dumping the sample through aligned openings in the two tubes into the connecting chamber. The tubes are kept at a desired angle when inserted by a spring assembly. The spring assembly also allows break-away movement should the device hit an obstacle.

Abstract: A shaper tool for truing the end portion of a pipe or tubing, including a plurality of cylindrical projections adapted to be inserted into the end of a deformed tube, and means to adjust the relative position of the projections to exert outward radial force on the inside of the tube.

Abstract: A handle of a specific novel configuration is attached to the door of a tractor cab having a specified configuration.

Abstract: A vehicle seat having a seat portion for sitting upon and a back portion for resting against. Formed in the seat portion adjacent the juncture of the back and seat portions is a transverse drainage member. A horizontally disposed cross-ventilation member is formed in the back portion adjacent the juncture of the back and seat portions.

Abstract: A turf perforating machine for aerating lawns by removing plugs therefrom comprising a wheeled frame having a plurality of reciprocating tools, each connected by a linkage to an eccentric mounted on a journal and each linkage slidably mounted in a pivotable guide secured to the journal which prevents binding of the linkage as the frame is moved across the lawn and the tool is disposed in the ground, and including further a retractor unit for pivoting the guide, linkage and tools to a nonperforating position.

Abstract: A mobile slurry mixer and spreader comprising a rotatable screen attached to and rotated by a drive and disposed within a mixing tank over a discharge opening. The rotatable screen prevents debris from entering the discharge opening while allowing a slurry material to enter the discharge opening. The mixing tank is mounted on a mobile chassis and a spreader is in fluid communication with the discharge opening of the tank. An agitator shaft is horizontally disposed within the tank and a plurality of mixing paddles are attached to the shaft and arranged to move slurry material toward the discharge opening while providing an improved mixing of the slurry material. The mixed slurry material passing through the discharge opening is distributed to the area over which the chassis travels.

Abstract: A device for docking and mooring a boat including a line secured on one end to the boat, a connector secured to the other end of the line, and a guide unit disposed proximate the docking area having a trap for engaging the connector. A method for docking and moving a boat utilizing the above device wherein a boat under powered control approaches the guide unit, the guide unit is engaged by the connector and under continued power the boat is caused to swing in an arc about the guide unit as it moves into its docking area.

Abstract: A portable ski holding jig including a vise unit and a pair of movable supporting units which are disposed on opposite sides of the vise unit to support the ends of a ski on either its edge or on either side.

Abstract: A batter board for use in building construction having, in one embodiment, two vertical support members and two horizontal alignment members which together maintain a constant spacing between the support members. One of the alignment members is affixed to the support members at the upper ends thereof, while the second alignment member is movably affixed to the support members in such a manner that it may be selectively positioned along the vertical axes of the support members. A slide member is movably affixed to the second alignment member whereby the slide member may be selectively positioned substantially anywhere within the plane defined by the ends of the support members. The basic structure just described may be advantageously modified by the addition of other support and alignment members.

Abstract: A vending machine of a type having a plurality of coin releasable and manually operable pull rods for selectively releasing a product to a consumer. A novel mechanism is provided for selectively locking or releasing the pull rods. This mechanism includes a rod pivotally attached to a frame, the rod being attached to a first lever which is, in turn, operably connected to the pull rod and to a second lever which is, in turn, pivotally attached to a third lever. Structure is provided for causing the third lever to be biased to a position wherein the pull rods are locked; but, upon the insertion of a predetermined amount of money into the vending machine, one of the pull rods can be actuated to release a product due to a changing of the fulcrum of the third lever and simultaneous movement of the third lever and its associated locking structure to thereby unlock one of the pull rods.

Abstract: A band holder and cutter device is defined by a simple L-shaped surface wherein the main leg of the device includes a protruding sharpened, tacking element that can be driven through a strapping band to hold it in place on a packing crate, and the supporting leg of the device supplies a cutting edge to implement the severance and removal of excess banding material when the main leg and the sharpened tacking element are driven into place.

Abstract: An animal watering device of a type having an enclosed housing with a plurality of nipple valves extending from the sides of the housing for allowing animals such as hogs to drink directly therefrom. A base plate having radially outwardly extending flanges thereon is disposed on the housing surrounding each of the nipple valves for the purpose of forcing the animal watering therefrom to align itself in the same general direction that the valve extends from the housing thereby preventing substantial water loss, undesirable water spillage and allowing more animals to efficiently use the waterer than has heretofore been achievable.