Abstract: A magnetic puzzle for educational purposes comprises a plurality of pieces. Each of the pieces has a magnetic side and a graphics side and is adapted to be attached to a metallic board. The pieces are of a thickness such that two or more pieces may be positioned one upon the other with the bottom piece attached to the metallic board.

Abstract: A fifth wheel cover (10) comprises a substantially sheet-like member having a circular portion (12) and a pair of tail portions (14) extending from one side of the circular portion (12) for covering the bearing plate and sloped flanges of the fifth wheel. A central kingpin opening (16) is provided between the tail portions (14). A cup portion (18) is provided at the end of each tail portion (14) for receiving the rear ends of the sloped flanges therein. At least one hook formation (20) is provided on the side of the circular portion (12) opposite the tail portions (14) for engaging with the rim of the fifth wheel to secure the cover (10) on the fifth wheel. The cover is integrally moulded from an anti-friction synthetic plastic material.

Abstract: A girder comprises a web of reinforced concrete with steel plates attached to opposite sides of the web to form flanges which project from the web. The steel plates are attached to the web by means of studs. The web is cast in position between the plates to embed the studs therein. The girder is used in the construction of bridges.

Abstract: A control system particularly for use for saw mill machinery utilizing large pneumatic actuators. A joystick provides an electrical control signal to a hydraulic proportional pilot valve which, in turn, hydraulically controls a valve body which controls the flow of air to the pneumatic actuator.

Abstract: An electronic cribbage board is provided which replaces the traditional pegs by LED's which light up to indicate each player's score. A keyboard for entering each player's score is provided which has a key for every possible score obtainable during the play of a cribbage hand. The score is entered by depressing a single key. Two LED's for each player are illuminated at the same time to present a present score and a previous score.

Abstract: A holder (10) for an electric arc gouging electrode comprises an elongate body (12) having a front end and a rear end. An electrically conductive tube (14) for receiving an electrode (31) therein is located on the body member (12) and extends longitudinally thereof. An air conduit (28) which is separate from the tube (14) is provided on the body member (12). The air conduit (28) has an air outlet at the front end of the body member (12) and a connector (36) is provided at the rear end of the body member (12) for connecting the air conduit (28) to a source of air under pressure. The holder (10) also includes electrically conductive rod (22) for connecting the electrically conductive tube (14) to a source of electrical power.

Abstract: A brake light, particularly for a vehicle other than an automobile, that operates using minimal energy from the vehicle. A first embodiment teaches a brake light using inertial change to initiate its operation. A second embodiment uses a magnetic sensor to determine the speed of a rotating wheel and initiates operation of the brake light when the speed of the rotating wheel decreases by a predetermined amount.

Abstract: A method and apparatus for analyzing the operating condition of a machine, such as a reciprocating compressor (10), is provided. The method comprises testing for fluid flow across the closed suction and discharge valves (30-33), as well as leakage across the piston (16), when the machine is in a non-operating condition. The test apparatus may be removable attached externally to the machine by connection to the Kiene head end indicator cock (22) and the crank end indicator cock (24) or the apparatus may be built in internally of the machine.

Abstract: A nozzle assembly used for assisting in the diagnosis of cylinder condition. The nozzle assembly emits oil normal to the axis of the assembly about a 360 degree arc such that the cyclinder walls are more completely wetted with oil prior to diagnostic tests occuring such as leakage or flow rate and compression checks. A spinning nozzle provides enhanced oil emission.

Abstract: A surface profiling apparatus comprises a vehicle with a body having ground engaging wheels for supporting the body. An arm is pivotally mounted on the body at one end of the arm and a sensing wheel is rotatably connected to the arm at the other end thereof. Means for measuring the inclination of the arm relative to the horizontal position and distance measuring means for determining the distance travelled by the body are provided. A computer is included for correlating the distance and inclination data obtained, which results can be stored on a removable solid state memory device for transfer to an external computer for further analysis and calculations.

Abstract: A burner assembly comprises a burner tube and a nozzle assembly used as a source of fuel and air for the burner tube. The burner tube is cylindrical and extends longitudinally about an axis. The burner tube includes two flame grids, each of which is located around the outside periphery of the burner tube and which supports a blue flame. A series of flame retention barriers are mounted about the periphery of the burner tube adjacent the flame grids.

Abstract: A metallic material measuring method and apparatus. The material is positioned within a coil and a high frequency alternating current is applied to the coil. The change in inductive resistance in the coil from a reference state to a state where the material to be measured is positioned within the coil allows a determination of the properties of the metallic materials to be made.

Abstract: A hanging plant holder which is height adjustable. A cable wraps around a pulley enclosed in the base of the plant holder and attaches to a hook in a ceiling. A braking and release mechanism in the plant holder allows the pulley to move in such a fashion that the cable is lengthened or shortened.

Abstract: A manually operated outboard motor. A propeller is connected to a first shaft which is geared through plastic mitre gears to a further shaft. The further shaft is connected to a gear which, in turn, is driven by a gear connected to a crank extending from the top of the housing of the outboard motor. The crank includes a handle and the crank and handle are manually rotated which, in turn, rotates the propeller.

Abstract: A stocking for leisure wear which has a thin silk material used for a foot portion with a reinforced toe and heel. A lower leg portion of cotton knit material is attached to the foot portion at the ankle by sewing with thread. The lower leg portion is a heavy cotton knit which provides warmth to the leg of a user and has the appearance of a knit sock. The foot portion enables the sock to be worn with a leather shoe or boot without stretching the shoe or boot or squeezing or cramping the foot of the user.

Abstract: A container attachment device for applying plaster or cement to a tape passes the tape through a pail of wet cement or plaster and has a doctor blade to control the thickness and evenness of the wet cement on the tape. The device comprises an elongate housing having a clip to engage the side of a pail or the like adapted to contain wet cement or the like, the housing extending into the interior of the pail. An arm extends outwards from a top portion of the housing above the clip. The arm has a support adapted to hold a roll of tape. Rollers are provided on the elongate body for guiding tape from the roll down to the lower end of the elongate housing in the pail, and upwards out of the pail, and the doctor blade ensures that an even thickness of wet cement or the like is applied to the tape before leaving the pail.

Abstract: A method for the disposal of nuclear and toxic waste materials comprising the placing of waste materials into waste repositories radiating from an access tunnel constructed into a subtending tectonic plate adjacent or as near as possible a subduction zone. The waste materials descend within the tectonic plate into the mantle of the earth.

Abstract: A sonic generator comprises a resonant bar, a housing and magnetic excitation units connected between the resonant bar and the housing. The magnetic excitation units are connected to the bar at highly stressed points using a mounting connection which is a sleeve having an inside diameter slightly greater than the outside diameter of the bar. A resilient elastomer such as urethane is mounted between the sleeve and the resonant member. The sonic generator may be used for grinding purposes and, in particular, may be used to grind material exceptionally fine with reduced power consumption. The bar is substantially unrestrained so as to allow substantially free vibration.

Abstract: A trolley pole retrieval method and apparatus. A sensing circuit senses threshold values of voltage and continuity in the vehicle power supply circuit, the vehicle motion and the distance travelled. The system responds to the sustained simultaneous conditions of low voltage and open circuit in the power supply circuit while the vehicle is in motion by enabling a distance counter. If the vehicle remains in motion under conditions of low voltage and low continuity for a predetermined distance, trolley pole dewirement is assumed and a retrieval pulley is actuated to return the trolley pole to the vehicle. This prevents damage to overhead power lines.