Abstract: The apparatus which is located separately from the RTD includes means for measuring the resistance of a plurality of RTDs present at a selected site, the RTDs being those of a number of different RTD types. The module includes means for storing the resistance/temperature map for each of the plurality of RTDs and for determining the temperatures associated with said resistances from the resistance/temperature maps. The resulting plurality of temperatures for each RTD, respectively, is then transmitted in a known order to a remote protective relay which determines the correct temperature for each RTD connected to the module.

Abstract: The relay obtains three-phase current signals from two power line sources thereof, typically two independent feeder lines. The two sets of signals are processed by a single processing means, which independently controls the circuit breakers associated with each feeder line, depending on the values of current obtained.

Abstract: A tensioning system for use in a retensionable frame used in silk screening wherein the fabric is precut and bordered with splines such that the appropriate tension is predetermined. A wrench including indicia to assure proper placement upon the tensioning hex extension is provided with a stop which assures appropriate tension.

Abstract: The present invention concerns an apparatus for allowing the operator of a plunge router to make accurate mortising or doweling cuts in a workpiece and more particularly to allow dowel holes or mortises to be executed in pieces of wood which are to be secured together. The apparatus comprises a base plate having adjustable lateral guides flanking an opening in the base for allowing the passage of a router bit. Removably securable to the base plate is a reversible member or gate including adjustable end guides such that removal and reversal of the gate member permits the user to perform an identical mirror image operation on the second of two workpieces to be matched.

Abstract: The engine mount system for racing karts includes two separate spaced mounts, each of which is secured on two spaced support rails of the kart's chassis frame. Each of the mounts includes arcuate portions in a lower surface thereof which are configured to fit around a portion of the spaced rails. Retainer portions connect to a bottom surface of each mount and secure the mounts to the rails. One mount includes two upright connecting members which extend upwardly from an upper surface of a base portion of the mount, the connecting members being offset somewhat from the centerline of the mount. The other mount includes a U-shaped connecting member which extends from an upper surface of the base portion of the mount, the U-shaped member also being offset from the centerline of the base portion. The U-shaped member and the spaced connecting members both include openings therethrough which permit connection of those members to the engine.

Abstract: A brushhead for a toothbrush having a particular bristle configuration which includes a plurality of bristle tufts arranged in three columns and nine rows, wherein the distal end two adjacent rows and the proximal end two adjacent rows and an intermediate row have longer bristles than the remaining bristle tuft rows. The distal, intermediate and proximal bristle tuft rows all have pointed tips (in the lateral direction) and beveled outside edges at the top portion thereof. The shorter bristle tuft rows also have beveled outside edges. The shorter bristle tuft rows between the distal and intermediate rows have angled top surfaces in addition to the beveled outside edges.

Abstract: A device for assisting in the tying of fishing knots, including a handle end including means for forming loops and a working end including a bifurcated pointed end tapering outwardly toward the handle and including upstanding edges to guide the line and a thumb pad to be used when holding the line. A method of tying knots using the tool.

Abstract: A transmission unit for bicycle brakes consisting of a single operating force input (10, 12) connected to a force multiplier (14) which distributes said multiplied force between two operating force outputs (16, 18) via a differential which equalizes the two operating force outputs while giving preferential motion of one of the outputs in the phase of motion prior to the full equalization of the multiplied operating force. This unit allows a single brake cable (12) from a control lever (10) to connect within the unit to a cam actuator follower which transfers this single operating force by means of a ratio modulating cam lever (26) which incorporates a guide pulley which moves via a fulcrum pivot axle (28) located between the cam structure and the guide pulley structure. This mechanism is combined with a cable (16, 18) which is looped around 180.degree. of the guide pulley and which exits the unit in parallel paths in a direction of opposition to the motion of the cam structure via the pivot axle described.

Abstract: The encoder cartridge includes a cartridge body which is divided interiorly into upper and lower portions. A ribbon is mounted on a feed spool in the upper portion and feeds through a series of guide elements to a lower portion which includes a take-up reel upon which the ribbon is wound by a traction gear member which is in turn advanced by a motor. The cartridge body is configured to match closely that of the feed spool and take-up reel, with an opening at one end of the body for the ribbon, the opening being substantially smaller than the width of the cartridge and similar to the diameter of the encoder font wheel.

Abstract: The power supply, useful with an electromagnetic force apparatus such as a riveter or a bolt inserter, includes two capacitor banks which are charged through charging doubler modules. Each charging doubler module includes an AC capacitor which is responsive to a power source. The AC capacitor is connected to a node point between two diode elements, which are connected in series across the capacitor bank. An analog-to-digital converter converts the voltage on the capacitor bank to a digital voltage for comparison with a selected digital charge voltage in a controller. The selected digital charge voltage may vary over time by means of a compensating algorithm. A ground fault indicator using a biasing voltage is connected between a selected electrical circuit portion of the force apparatus and earth ground. A gas discharge tube in combination with a current sensing element is connected to the capacitor banks to determine a possible over-voltage condition.

Abstract: A carpet cleaning head wherein the head 8 is fabricated of two mating elements, a shroud 12 and an inverted cup-shaped main body portion 14, wherein the main body portion incorporates radially extending vacuum scrubbers 30 and has secured thereto on the underside thereof nozzles 40 for supplying heated cleaning fluid under pressure. The cleaning head 8, including the shroud 12, rotates forming a moving seal with the carpet containing the heated pressurized cleaning fluid, exaggerating the pressure difference with the vacuum and enabling the scrubber to do a more complete cleaning operation.

Abstract: The angle between the negative sequence and zero sequence currents for a power signal on a transmission line is measured and compared against a plurality of successive angle ranges from 0.degree. to 360.degree.. If the angle is 0.degree..+-.30.degree., an AG fault is indicated and a first section output is produced blocking ground elements BG and CG and phase-to-phase elements AB and CA. An angle of 120.degree..+-.30.degree. indicates a BG fault, resulting in a second output blocking ground elements AG and CG and phase-to-phase elements AB and BC, while a phase angle of 240.degree..+-.30.degree. indicates a CG fault, resulting in a third output blocking ground elements AG and BG and phase-to-phase elements BC and CA.

Abstract: A boat loading device including a first frame secured to a vehicle supporting a second frame selectively extendable to a launch/retrieve position and retractable to a carry position. The device is usable upon a truck or trailer and can be used to carry objects other than boats. The device is easily removed from the vehicle and includes safety devices preventing accidental launch.

Abstract: A roller assembly (12) for use with a mower head (10) is disclosed. The roller assembly includes a roller body (24) to which a shaft (26) is attached such that the body and shaft rotate in unison. The shaft has a pair of opposed ends, each of which is coupled to a bearing assembly (30) that is attached to an arm (28) that is secured to the mower head. The bearing assemblies freely rotate relative to the planes in which they are normally seated so that in the event the arms with which they are associated become out of alignment, the associated shaft and roller body will be able to continue to freely turn. In the preferred versions of the invention, the roller body is made out of ultra-high molecular weight polyethylene plastic. The roller body is further formed out of individual sections. The individual sections are each not more than 15 inches in length and are mated together to form the integral roller body.

Abstract: A belt tensioning frame assembly includes opposing elongated channel members, connected by elongated plate members at the respective ends thereof. A first roller, mounted at one end of the tensioning frame assembly is positioned above the plane of the tensioning frame assembly, while a second roller is below the plane of the tensioning frame assembly, at the other end of the tensioning frame assembly. The tensioning frame assembly is rotatably mounted to a conveyor frame by bearing assemblies and a cross-support rod. The angular position of the tensioning frame assembly is controlled by two air cylinders which are connected between the conveyor frame and the two channel members of the tensioning frame assembly. The lower run of the conveyor belt extends over one of the rollers and beneath the other such that a change in the angular position of the tensioning frame assembly tends to increase or decrease tension on the belt.

Abstract: A remote-driven encoder which includes a feed tray assembly (12) and an autofeed roller assembly (14) which moves checks one at a time into a check guide path. A deskewing roller (46) moves the checks from the tray assembly (12) to the autofeed roller assembly (14). The check is moved along the check guide path by first and second drive assemblies (16, 20). Intermediate of the two drive assemblies (16, 20) is an encoder assembly (18) and a ribbon cartridge (22). The apparatus includes a plurality of sensors which provide information for control of the movement of the check, including a preload sensor (70), a detect sensor (88), and a leading edge sensor (90), among others. The check moves through a substantial angle from the feed tray past the encoder assembly. The encoded check is moved around an eject roller and then into a catch tray at the rear of the apparatus.

Abstract: A method of playing a game which includes a base element having a substantially horizontal, dimensionally defined upper surface and a plurality of uniformly thick playing pieces, wherein the base element is placed on a stable surface and then the playing pieces are sequentially played forming a game structure extending upwardly and outwardly from the base element until a designated uppermost piece is played terminating any further upward play, all subsequent pieces being played outwardly, including wedging pieces between previously played pieces, until the structure topples.

Abstract: The vapor exhaust system is used in a wall section which includes a lower plate member (10) and an upper plate member (18), both of which have longitudinal grooves (12, 20) therein. Connected between the upper and lower plate members are a plurality of vertical stud members (26). Cut-out portions are provided in the stud members (26) as well as in the upper plate member (18), permitting air trapped between the studs to move out of the wall section through the cut-out portions. Exterior and interior facing members (54, 60) may be positioned on the wall sections. An opening (56) is provided in a lower portion of the exterior facing member (54). A pump (40) may be used to assist in the movement of air through the wall section.

Abstract: The relay includes an input module capable of receiving 70 volt and 5 amp signals, respectively, from conventional instrument transformers, which are responsive to power line signals at their primaries. Output signals from the input module have specified, standardized levels suitable for electronic processing circuits, i.e. 1.4 volts and 0.1 volt. The output signals from the input module are applied through an accessible connector to a separate processing module which uses those signals in a conventional manner to determine possible faults on the power line. Low-level testing is accomplished by testing the outputs of the input module and by applying test signals simulating the standardized outputs of the input module to the processing module.

Abstract: A load cell for on-board weighing applications, including an elongated sheer force measuring beam (24) which includes mounting means (52,54,56) for securing the opposing longitudinal ends of the beam (24) to the frame (58) of the vehicle. The load is applied against the upper surface (32) of the beam (24) through a platform (20) or the like. The shear strains caused by the load are concentrated in an area near each end of the beam (24). The strain measuring means (30) are located in holes in the sides of the beam in the shear force areas and measure the shear strains on the beam, which in turn are representative of the weight of the load.