Abstract: Disclosed is a fiber optic connector tray system for improved fiber optic cable management, especially in situations requiring higher fiber optic cable and connector density. Embodiments of the invention include tray bodies which are mounted to a framework and pivot or rotate to provide access to fiber optic connectors. The pivot or rotation further provides a mechanism to take up additional slack resulting from the pivoting.

Abstract: A mobile electronic payment terminal to which a standard mobile communications device such as a cellular telephone may be connected to enable full mobile EFTPOS transactions to occur. The assembly of terminal and communications device is able to be held by hand. The invention conveniently reduces or eliminates the need for a merchant to purchase a dedicated communications device for EFTPOS transactions thus reducing cost.

Abstract: A method of forming a pile isolation void including forming a foundation pile having an enlarged cross-section within a specific localized section and driving the foundation pile a desired distance into the earth so as to form a pile isolation void directly above the enlarged cross-section. The enlarged cross-section can be located at the bottom of the foundation pile or along the length of the foundation pile. The pile isolation void is an annular void extending around the foundation pile above the enlarged cross-section. This pile isolation void can be filled with a material, such as liquid, gel, or a solid material different than the material of the pile or of the earth. The enlarged cross-section can be a collar placed upon the foundation pile, or integrally formed with the foundation pile.

Abstract: A method of creping a paper is described which comprises applying to the creping drum prior to the application of the paper web to be creped, a synthetic anionic polymer.

Abstract: Particle produced pulses are evaluated on an individual basis for shape symmetry, with significantly asymmetric pulses, becoming subject to editing, i.e. exclusion. Pulse symmetry is determined by measuring the areas under the pulse before and after the first pulse amplitude peak and then by comparing those pulse areas with respect to pre-established limits which are not based upon any of the pulses then being evaluated.

Abstract: The invention concerns a method and apparatus for separating fluids containing particulate matter into two or more fractions of different densities. A cyclone separator (1) is utilized for this purpose and differs from previous constructions inasmuch as it is a uni-directional, air-cored device having an inlet (7) only for the fluid (A) in the top and two separate outlets (11, 15) in the bottom, remote from the inlet, one (11) of which outlets extend axially of the separator. In operation particles (as defined in the specification) once separated from the streamline (A') in which they enter the device are constrained against traversing that streamline. Means (5) are provided adjacent the inlet (7) to stabilize the initial flow of fluid. The axially extending outlet (11) may be adjustable.

Abstract: A teat spray system for installation in an automatic milking parlor for spraying the teats of cows. The system comprises a differential vacuum line switch, powered from the milking parlor vacuum line, and providing alternating vacuum pulses in a pair of vacuum lines; a liquid disinfectant pressure pump powered from the pair of vacuum lines; a pressure bottle for holding a volume of disinfectant under pressure and a spray line and spray head. The system is pressure self-limiting and has a pressure release valve operative when the milking parlor vacuum line is shut down.

Abstract: A vacuum line control valve having a single vacuum input port and a pair of output ports to which vacuum is supplied alternately, each output port being vented to atmosphere when not at vacuum pressure. A reciprocating valve control member is carried by a resilient diaphragm which separates two internal chambers. A first valve control setting corresponds to the initial, rest position of the diaphragm. Differential pressures in the chambers first displace the diaphragm to the second valve control setting and then return it to the first. Frequency of alternation is determined by a bleed aperture between one output port and one chamber.

Abstract: A tuner for a television receiver comprises a circuit board formed by a slab of dielectric material having conductors located on one side and discrete components mounted on the other so that it may be readily assembled and soldered. Some of the conductors are arranged to form capacitors and distributed parameter inductors. In the UHF portion of the tuner a strip-like conductor and a wider ground conductor are spaced apart in parallel relationship. The length of the gap between the strip-like conductor and the ground conductor is selected to provide inductive reactance in the UHF band. A slot is cut, punched or otherwise formed through the dielectric material in the gap between the strip-like conductor and the ground conductor to increase the Q (the figure of merit inversely related to loss) of the inductor at the upper end of the UHF range. In addition, the slot significantly improves thermal stability of the inductor.

Abstract: In the UHF tuning portion of a television receiver, a varactor tuned circuit is coupled to the gate electrode of a field effect transistor (FET) through an impedance transformation network comprising a series connected capacitor and shunt connected inductor. In order to increase the signal power transferred between the tuned circuit and the FET at the lower end of the UHF range, the values of the capacitor and inductor are selected so that the relatively low value of equivalent parallel impedance exhibited by the tuned circuit at the lower end of the UHF range is impedance transformed to a value approximately equal to the value of the impedance exhibited at the gate of the FET. A second impedance transformation network, similar to the first, is coupled between the drain of the FET and a second varactor tuned circuit to further increase the signal power transferred between the FET and the second tuned circuit at the lower end of the UHF band.

Abstract: A machine and method for making spiral pipe from a continuous strip of sheet metal including a corrugating mill which forms corrugations in the strip and drives it through a three-roll bending mill which bends the strip into helical convolutions and guides adjacent edges thereof into an interlocking relationship and a pair of lock up rolls for crimping the interlocked edges of the convolutions into a continuous seam, which rolls are manually or automatically adjustable radially relative to the pipe axis whereby its diameter may be accurately controlled. Adjustment of said rolls radially inwardly effects a diameter increase whereas adjustment outwardly decreases the diameter of the pipe.