Abstract: Interactive game apparatus is disclosed which includes one or more photosensitive weapon devices which can interact with a coded video display and with each other to provide two-way interaction, where each weapon may score against an opponent and may be hit by an opponent. Accessory devices in the form of a photosensitive light source and a rotating mirror act to increase the excitement of the game play.

Abstract: An electrical outlet box installing device including a base portion having a preselected length and width, an upright member affixed to the base portion, the upright member being provided with an arrangement for mounting an electrical outlet box at a preselected height and abutting a first vertical wall, and an arrangement for positioning the upper portion of the upright member a preselected distance from a second vertical wall.

Abstract: A multichannel FM subcarrier broadcast system is disclosed which enables the transmission of multiple independent signals by generating independent sidebands of suppressed carriers in the subcarrier band of an FM transmitting station. Transmitting and receiving apparatus is disclosed which employs phase shift networks to minimize interchannel distortion, thus allowing close spacing of adjacent sidebands.

Abstract: An electrochemical gas analyzer is disclosed which includes sensing, compensation and counter electrodes in an electrolyte. The compensation electrode provides a compensation signal related to the concentration of gas dissolved in the bulk of the electrolyte. This compensation signal is subtracted from the analyzer output signal to eliminate errors caused by bulk electrolyte dissolved gas.

Abstract: An anti-theft assembly for carts including a housing adapted to fit adjacent a wheel of a cart, a receiver within the housing for sensing the passage of the cart beyond a preselected range and providing a signal indicative thereof, and an arrangement responsive to the signal for lowering an arm into the direct path of the adjacent wheel.

Abstract: A non dispersive optical gas analyzer is disclosed which uses thermopiles as optical detectors. The thermopiles are formed of an array of interconnected thin films of dissimilar metals deposited on a heat conductive substrate to form a multitude of thermocouples. The array is configured in such a manner that a number of the thermocouples are employed to compensate each thermopile output signal for changes in ambient temperature.

Abstract: An automatic lighting device having a circuit for operating an electric light, a switch for manually actuating the circuit, a detector circuit for determining whether movement above a prescribed threshold level has occurred within the area covered by the electric light within a first preselected period, a circuit responsive to the detector circuit for disabling the circuit for providing electricity if movement has not occurred in the area during the first preselected period, and a circuit for reactivating the circuit for providing electricity in response to the detection of movement in the area within a second preselected period.

Abstract: A multiple wire joining device is disclosed which includes a generally tubular, deformable, electrically conductive housing having multiple apertures formed in the wall thereof. The apertures are axially spaced apart along the length of the housing and are each adapted to admit a wire therethrough so that it may entend axially along a length of the housing. The spacings between the apertures are sufficient to permit the admittance of a wire into the housing through each of the apertures a sufficient distance to enable the crimping of the housing adjacent each aperture to retain the respective wire therein.

Abstract: An isometric chin, neck and jaw muscle exerciser is disclosed which includes a generally C-shaped structure having two free ends. One free end is adapted to fit within the mouth of the user, and the second free end fits under the chin. Weights are added to the structure to cause the second free end to press upward against the lower jaw and chin muscles, while at the same time exerting a resistance against the upper jaw muscles.

Abstract: A method of attaching a hollow end knob to the handle portion of a hollow ball bat, in which the hollow bat handle portion positioned within the cavity of the hollow end knob is outwardly deformed to a transverse cross-section substantially larger than the cavity opening. The outward deformation is preferably accomplished by applying pressure against the transverse exterior surface of the end knob which in turn bears against the circular end of the hollow bat handle. The interior transverse surface of the end knob may have a circular recess corresponding to the end of the bat handle.A hollow metal ball bat having a hollow end knob encompassing an enlarged section of a hollow handle portion. The opening of the end knob is smaller than the contained enlarged handle portion, and fits over the smaller cross-section of the handle portion adjacent the enlarged portion.

Abstract: A method for manufacturing an electrical connector is disclosed in which the connector itself comprises an aluminum barrel member having a first and a second end, with the barrel member having a recess in its first end adapted to receive an electrical cable and a copper lead member extending axially out of its second end. The method comprises the steps of first forming a second recess in the second end of the barrel member, and forming one end of the copper lead member such that it includes a portion having a reduced cross-sectional area relative to the rest of the copper lead member. This end of the copper lead member is then inserted into the second recess in the barrel member, and electrical current is provided through the copper lead member and the barrel member while simultaneously applying force to bring the end of the copper lead member into engagement with the bottom of the second recess in the barrel member.

Abstract: A composition of material is disclosed which comprises sintered carbide-binder metal alloys. The carbide is a solid solution of hexagonal tungsten monocarbide and molybdenum monocarbide of stoichiometric composition containing between 10 and 100 mole percent molybdenum monocarbide. The binder is selected from the metals of the iron group, and comprises between 3 and 50 weight percent of the composition. A method for making the hexagonal carbide is also disclosed.

Abstract: A manufacturing machine such as an automatic assembly machine is disclosed which includes a work station which can include linear motion devices and rotary motion devices. A conveyor system is disclosed for transporting a workpiece to and from the work station, and positioning means are disclosed for precisely positioning the workpiece to the work station.

Abstract: A method for reducing zirconium is disclosed in which a reductant metal, preferably aluminum, is dissolved in the molten state in a solvent metal, preferably zinc. This molten metal phase is contacted with a fused salt phase which includes a zirconium salt to be reduced as one of its components. The desired reduction is effected by mutual displacement, with aluminum being transported from the molten metal phase to the fused salt phase, replacing zirconium in the salt, while zirconium is transported from the fused salt phase to the molten metal phase. The fused salt phase and the molten metal phase are then separated, and the solvent metal and zirconium are separated, such as by distillation.

Abstract: A composite structure is disclosed which comprises a combination of heat treatable cemented carbides and alloy steel. The carbide phase in the cemented carbide is predominantly tungsten monocarbide, or solid solutions of tungsten monocarbide and molybdenum monocarbide, of stoichiometric composition. The binder in the cemented carbide is based on heat treatable low to medium alloy steel and contains less than 1.5 percent by weight vanadium and less than 8 percent by weight chromium. A method for making the cemented carbide is also disclosed. The composite structure is formed by integral casting in steel of the preformed cemented carbide. The composite structure can be heat treated to the desired hardness and toughness properties. The primary area of application of the composites of the invention are in digger teeth for earthmoving, in mining and ore-comminution tools, and in cutter heads for deep-well drilling.

Abstract: A method for separating hafnium and zirconium is disclosed in which unseparated zirconium and hafnium are dissolved in the molten state in a solvent metal, preferably zinc. This molten metal phase is contacted with a fused salt phase which includes a zirconium salt as one of its components. The desired separation is effected by mutual displacement, with hafnium being transported from the molten metal phase to the fused salt phase, replacing zirconium in the salt, while zirconium is transported from the fused salt phase to the molten metal phase. Separation factors of 300 or more per stage are achieved.

Abstract: A composition of material is disclosed which comprises sintered carbide-binder metal alloys. The carbide is a solid solution of hexagonal tungsten monocarbide and molybdenum monocarbide of stoichiometric composition containing between 10 and 100 mole percent molybdenum monocarbide. The binder is selected from the metals of the iron group, and comprises between 3 and 50 weight percent of the composition. A method for making the hexagonal carbide is also disclosed.

Abstract: A manufacturing machine such as an automatic assembly machine is disclosed which includes a work station which can include linear motion devices and rotary motion devices. A conveyor system is disclosed for transporting a workpiece to and from the work station, and a positioning arrangement is disclosed for precisely positioning the workpiece to the work station.