Abstract: This invention relates to a limited range low voltage testing, regulating, and indicating device comprising a detector and low voltage measurer of magnitude in a switch-regulated power supply circuit wherein indicator LEDs are operated directly from a power supply wherein continually increasing current draw provided by shunt switching operates to cause the first display LEDs to “fade” in an overlapping pattern of activation, in and out with slight voltage changes. Increased voltage causes a second LED to turn on. Further increased voltage causes the second LED to turn off and a third LED to turn on. Shunt and series connected voltage regulators selectively exert control over the LEDs.

Abstract: The present invention provides a golf car bumper assembly which is mounted on a front axle of a golf car in order to reduce extensive damage to the body of the golf car in the event of a collision, comprising a bumper beam having a first end and a second end, a front surface and a back surface, and extending in a longitudinal direction, a pair of bumper guards, each having depending ends, a pair of mounting plates, a pair of bumper brackets, and at least two fasteners. Also provided is a kit comprised of the separate components of the bumper assembly and a method for attaching the bumper assembly components on the front axle of a golf car.

Abstract: Systems and methods are disclosed for an automatic and continuous supply of coating material to a coating applicator in optical fiber fabrication. The present invention switches from one coating reservoir to another by way of a transitional period in which both coating reservoirs are supplying coating material to the coating applicator. For example, while an in-use reservoir is supplying the coating material to the coating applicator, a standby reservoir is being filled, settled to off gas air bubbles and then slowly pressurized. A sized orifice is used to slowly bleed off pressure from the in-use reservoir at a rate that does not allow the pressure in the in-use reservoir from falling out of a desired pressure range.

Abstract: A bearing pad for a tilt pad journal bearing assembly includes a pad body having a concave journal surface on one side and a mounting portion on an opposite side adapted to secure the pad to a bearing casing, the journal surface having undercut surfaces extending along opposite marginal edges thereof in a lengthwise dimension of the pad.

Abstract: Defects in optical fibers are detected during manufacturing by using three bandpass filters to separate signals from a scattered light signal produced by a light source in a fiber measurement system. The separated signals include a clad diameter signal, a regular airline signal and a core airline signal. The regular airline signal is compared with the clad diameter signal to produce a normalized regular airline signal, and the core airline signal is compared with the clad diameter signal to produce a normalized core airline signal. The normalized regular airline signal and normalized core airline signal are monitored to determine if they increase, which indicates the presence of a defect in the optical fiber.

Abstract: Methods and apparatuses introduce mechanical twist to an optical fiber having relatively large polarization mode dispersion (PMD), such as unspun fiber or fiber spun with constant spatial frequency, which mechanical twist reduces the fiber's PMD. A spool of optical fiber having relatively large PMD is mounted and fiber is pulled from the end of the spool to impart a specified mechanical twist. Additionally, the spool may be controllably rotated by a control system while optical fiber is pulled therefrom, allowing the system to generate a precise amount of mechanical twist to the fiber. Also, it is possible to measure the amount of mechanical twist in an optical fiber and the amount of mechanical twist in an optical fiber as a function of fiber length.

Abstract: This invention relates to a limited range low voltage testing, regulating, and indicating device comprising a detector and low voltage measurer of magnitude in a switch-regulated power supply circuit wherein indicator LEDs are operated directly from a power supply wherein continually increasing current draw provided by shunt switching operates to cause the first display LEDs to “fade” in an overlapping pattern of activation, in and out with slight voltage changes. Increased voltage causes a second LED to turn on. Further increased voltage causes the second LED to turn off and a third LED to turn on. Shunt and series connected voltage regulators selectively exert control over the LEDs.

Abstract: Defects in optical fibers are detected during manufacturing by using three bandpass filters to separate signals from a scattered light signal produced by a light source in a fiber measurement system. The separated signals include a clad diameter signal, a regular airline signal and a core airline signal. The regular airline signal is compared with the clad diameter signal to produce a normalized regular airline signal, and the core airline signal is compared with the clad diameter signal to produce a normalized core airline signal. The normalized regular airline signal and normalized core airline signal are monitored to determine if they increase, which indicates the presence of a defect in the optical fiber.

Abstract: The instant invention relates to a solid state low voltage power supply controller which reduces a conventional 120 volt AC power source to 12 volt pulsating DC for the purpose of operating a single “point of use” light source wherein the low voltage power supply is in proximate location to the light source. A pulse width modulator integrated circuit operating in conjunction with a field effect transistor induces energy in the secondary of a step-down transformer to provide a reduced pulsating DC current to a lamp load. A feedback voltage from the secondary winding of the stepdown transformer operates to set the gain of internal circuitry of the integrated circuitry to provide a predetermined constant pulsating DC voltage and a predetermined limited range of power wattage. A feedback voltage operates to reduce current drawn by overcurrent demands on the primary of the transformer.

Abstract: A luminescent device having first and second light-emitting regions, wherein the first light-emitting region emits, in use, a first polarised light and the second light-emitting region emits, in use, a second polarised light different from the first polarised light.

Abstract: A charge-transport structure, e g an opto-electronic structure such an electroluminescent device is manufactured by forming a uniform first charge-transport (eg electron-transport) polymer layer on a substrate. Low molar mass dyes in a solvent are ink-jet printed onto the exposed surface of the first layer to form a multicolor pattern, and the dyes are allowed to diffuse into the layer to form charge-recombination/emitter regions within the layer. Excess dyes are washed away from the surface and then a uniform second charge-transport (eg hole-transport) polymer layer is formed on the resultant smooth surface of the first layer over the tops of the regions. Finally, electrodes are deposited on the top of the second layer in registration with the regions. Photovoltaic structures and organic transistors are also disclosed.

Abstract: A compound of the present invention is a triazine compound of the general formula: Ar, Ar′ and Ar″ are aromatic moieties which are conjugated to the triazine core and are the same or different. Each of R1, R1′, R1″ to Rn, Rn′, Rn″, which may be the same or different, is an elongated flexible, at least partly aliphatic chain such as to impart liquid-crystalline or columnar crystalline properties to the compound or its mixtures. —(R1, . . . , Rn), —(R1′, . . . , Rn′) and —(R1″, . . . , Rn″) indicate that there are up to n, n′ and n″ substituent groups R on respective Ar, Ar′, Ar″ moieties, where n, n′ and n″ are integers which do not exceed a number of available substituent positions on the respective Ar, Ar′, Ar″ moieties.

Abstract: A method of producing a metal socket for attachment to a flexible pressure hose that comprises a cylindrical metal sleeve defining an axis, with a plurality of non-annular V-shaped grooves formed in an outer surface thereof and corresponding non-annular V-shaped projections formed opposite said grooves on an inner surface thereof. The socket is both economical to produce and exhibits improved strength in gripping the end of a hydraulic hose.

Abstract: A metal socket for attachment to a flexible pressure hose comprises a cylindrical metal sleeve defining an axis, with a plurality of non-annular grooves formed in an outer surface thereof and corresponding non-annular projections formed opposite said grooves on an inner surface thereof. The socket is both economical to produce and exhibits improved strength in gripping the end of a hydraulic hose.

Abstract: A display device has two or more display elements. The display device is addressed by applying a set of data signals for one display element and a strobe signal for a second display element simultaneously to a layer of electrodes common to both display elements. Preferentially, the strobe signal for the second element is applied to one electrode, and the data signals for the first element are applied to all other electrodes. The data signals for the one display element are controllable independently from the strobe signal for the second display element.

Abstract: A sport's training aid for a quarterback including an extensible-retractable vertical pole having a horizontal arm and pass throwing target loops located at lower and upper positions on the vertical pole and at the free ends of the horizontal arm. The target loops are located at positions representing pass reception locations of different common types of passes thrown by a quarterback.

Abstract: A combined warhead arming and drive motor ignition device for a self-propelled missile having a warhead and a drive motor comprises a first acceleration responsive means (1, 2, 3, 4) to provide an output when the missile achieves a first acceleration, a timer initiated by the output from the first acceleration responsive means and providing a first output (i) after expiry of a first period and before expiry of a second period and a second output (v) after expiry of a third period, and a speed responsive means (5, 6) to provide a speed output (ii) when the missile has attained a predetermined speed and also to provide a first distance indication output (vi) when the missile has travelled a first distance but has not yet travelled a second distance and a second distance indication (vi) output when the missile has travelled a third distance.

Abstract: Food cans are slid across a vertically-oscillating weigh platform while being guided by contacting means bearing against their upstream side surfaces. The contacting means comprise a pair of rollers rotatable about an axis transverse to the direction of sliding motion of the cans, and bearing against the vertical side surfaces of the cans above the bottom bead of the can. This avoids the indentations formed in the lug contactors of the prior art after many contacts with the bead of the can, and thereby improves the weighing accuracy.

Abstract: The invention relates to the monitoring of the filling effectiveness during the filling operation of a waterproof or filled telecommunications cable on a manufacturing line, and includes measuring the capacitance change per unit length of an outer pair of insulated conductors in the cable, measuring the capacitance change per unit length of an inner pair of insulated conductors in the cable, determining any deviations in the measured capacitance changes and utilizing such deviations by feedback control to eliminate further deviation, as well as determining the point of deviation along the cable length.

Abstract: An opening in a jacket (15) of a cable (16) is detected as the jacketed cable is moved from an extruder (14) through a probe (21) which is positioned in a cooling trough (17) and which comprises first and second aligned, spaced sensors (24, 26) with each of the sensors being connected to an arm of a bridge transformer (37). Electrical circuitry is designed to cause an unbalance voltage in a secondary (43) of the transformer (37) in response to conductance unbalance as the opening in the jacket (15) is advanced through the first sensor (24) and to cause an unbalance voltage of opposite polarity in the secondary (43) in response to conductance unbalance as the opening in thejacket (15) is advanced through the second sensor (26). Logic circuitry (66) tests the unbalance voltages for threshold and peak values to discern jacket holes despite the presence of extraneous signals such as those which are caused by noise.