Abstract: Disclosed is a valve for mixing hot and cold water and providing for accurate outlet temperature control to within .+-.1.degree. C. Valve consists of a hollow body closed at one end and including an internal sleeve located by two annular flanges that define chambers between the sleeve and the body communicating, respectively, with hot and cold water inlets. Each chamber communicates with the interior of the sleeve by a radially directed passageway. A piston slides within the sleeve between a first valve seat formed by a face of a third annular flange extending inwardly of the sleeve above the cold water passageway to close the cold water passageway and leave the hot water passageway open and a second valve seat located at the bottom of the sleeve to close the hot water passageway and leave the cold water passageway open.

Abstract: The portable memory module disclosed herein is constructed in a compact cylindrical form facilitating its use in oceanographic and environmental data acquisition environments. Individual integrated circuit memory components are carried and interconnected by a flexible printed circuit, the components being oriented in columns with pin lines parallel to the axis of a cylindrical battery casing to permit the circuit to be rolled around that casing. The battery casing and rolled printed circuit are then inserted in a protective outer casing, also cylindrical.

Abstract: Automatic combing and separation of the leads of radial lead electronic devices is provided by at least one flexible, insulating blade mounted on a contactor assembly whose contacts are lowered onto and then drawn along the leads. The blade is positioned to interpose itself between adjacent leads. A center contact has a window that mounts locating pin. The blade extends through the window and is preferably urged resiliently into contact with the pin to provide an accurate and reliable alignment between the blade tip and an opening between a center lead and an adjacent lead.

Abstract: To make possible the effective immobilization of pieces of bone with an osteosynthesis plate, the proposal is made that the longitudinal edges of the osteosynthesis plate diverge in the manner of a trapezoid, that the osteosynthesis plate be provided with two adjacent rows of slots for its screws, and that the orientations of the longitudinal axes of the slots in both rows diverge in the same directions as the diverging longitudinal edges of the osteosynthesis plate itself.

Abstract: In order to simplify the construction and to accelerate the change-over of two drive units in the case of a feeding device having a drive shaft and two gear units each drivable by a motor, which gear units are able to be connected alternately to the drive shaft such that each may alternately rotate with the drive shaft independently of the other, it is suggested that both gear units are designed as slip-on gear units and have a driven hollow shaft, that the two ends of the drive shaft each have the hollow shaft of one of the two slip-on gear units mounted around them in a manner permitting relative rotation, that the gear units are secured against rotation about the axis of rotation defined by the drive shaft and that rotary couples are provided, such that one of the hollow shafts at a time is connected to the drive shaft such that the connected hollow shaft secured against rotation relative to the drive shaft.

Abstract: Quartz glass includes iron and aluminum. The total iron content ranges from 0.01 to 5% by weight, and the total aluminum content ranges from 0.01 to 10% by weight. The quartz glass exhibits infrared rays-absorbing ability and visible light-transmitting ability. Also a process for making such a quartz glass is disclosed.

Abstract: A flexure mount particularly adapted for use in a dynamically tuned gyroscope provides a universal coupling between a rotor element and a drive shaft. The mount features a substantially planar "spider" member oriented transversely to the spin axis of the rotor. The spider has four webs that each extend radially from an inner gimbal ring to a segmented outer ring having four independent sectors each associated with and centered on one of the webs. Two mutually perpendicular "vertical" or cross flexure members each have key portions that extend through radial slots in the webs of the spider. The inner gimbal ring and the spider have central apertures coaxial with the spin axis. An alignment member is seated in the aligned apertures. The vertical flexure members are seated in a set of mutually perpendicular and axially extending slots formed in the alignment member. The spider and the cross members are preferably etched or stamped from precision rolled sheet material.

Abstract: An improved heating apparatus, for example for use as a wood or coal burning parlor stove and providing a significant heat output, has a construction for reducing thermally induced mechanical stress and for enabling the interior baffle assembly components of the apparatus to be removed therefrom, for replacement if necessary, without dismantling the apparatus exterior frame. The elements of the interior baffle assembly are interconnecting and are secured in a mechanically stable configuration by single point connection to the apparatus frame. The apparatus can have primary and secondary combustion chambers and a baffle system for directing flue gases along a circuitous path from the secondary combustion chamber to an exit aperture whereby a significant proportion of the heat of said gases is given up to the apparatus. A vertically oriented downwardly directed two component baffle separates the combustion chambers.

Abstract: A tester/sorter for performing electrical tests on axial lead devices such as diodes at a very high throughput rate carries the devices on the periphery of a rotating wheel. A contactor assembly periodically makes electrical connection with one or more of the axial lead devices. A flying arm assembly mounts the contactor assembly so that it travels through a closed loop path of motion with respect to the wheel. In a first path portion, mechanical controls acting on the flying arm assembly lower the contactor assembly into electrical contact with the leads of the device. Once in electrical connection, there is no relative motion between the contactor assembly and the leads. After the test is completed, the mechanical controls lift the contactor assembly away from the leads and return it to its starting position. This travel is substantially free of mechanical impacts that could produce vibrations and thereby degrade the accuracy of the testing.

Abstract: A road towable platform having a sectional mast for rapid erection at the face of a structure for the performance of work thereon. The platform is vertically driven on the mast by means of dual independent drives each comprising a motor, a centrifugal overspeed brake, a triple reduction spur gear train, and a pinion engaging an independent rack on the mast. Each motor also has an integral disc brake engaged when the power is off.

Abstract: There are disclosed an optical fiber junction device and a method of making the same. The method comprises the steps of providing a central inner pipe or rod of glass, arranging a plurality of optical fibers around the inner pipe or rod, and externally heating the optical fibers and the central inner pipe to form a thermally fused assembly having cores of a sectorial cross section. The inner pipe may include a tapered portion having a reduced diameter. The optical fibers may comprise optical fiber junction units each composed of a plurality of optical fibers.

Abstract: A system for transferring heat from a first (inner) surface through a second (outer) surface. The system includes at least two adjacent porous and thermally conductive layers between the first surface and the second surface. The innermost layer is characterized by a relatively high porosity and the outermost layer is characterized by a relatively low porosity. The innermost layer houses a fluid coolant. The pores of the innermost and outermost layers are coupled, permitting coolant flow therebetween. A vapor chamber is positioned between the outer surface and an outer member. A controller is adapted to control the vapor pressure in the vapor chamber whereby the coolant has a liquid vapor phase transition in the outermost layer.

Abstract: The gas feed system disclosed herein is useful in a reactive ion etching system in which a gas plasma is energized by an electrode plate through which the gas is introduced. Propagation of the plasma discharge down the gas feed path is blocked by a feed system in which the space between a pair of porous metal plugs is filled with a porous insulating material having a pore size too small to support discharge, i.e. corresponding to the mean free electron path in the gas.

Abstract: Described is a conveyor idler roller assembly including an outer roller (1) carried in a conveyor frame (11) on a shaft (10) extending outwardly therefrom, said shaft having pivotally mounted at the free end thereof a disc (20) the plane of which is parallel to the shaft axis and the axis of the mounting (23) at right angles to said shaft axis, said mounting being on a diameter of the disc (20) remote from the center thereof and said disc further including a flat surface portion (21) parallel to a diameter and at right angles to the axis of said pivotal mounting, whereby when the flat portion (21) of said disc co-operates with said frame (11) the idle roller assembly provides support for a conveyor belt (18) and when said disc is rotated about said mounting to move said flat portion remote from said frame the idler roller assembly ceases to provide support for said conveyor belt (18).

Abstract: An externally generated myriametric frequency magnetic carrier signal is resonantly reflected by a tuned coil in an implant. The lagging phase angle of the reflected signal is modulated at very low power by varying the impedance across the tuned coil in accordance with a data input signal. An external phase shift demodulator recovers the transmitted data. To assure adequate coupling between the external unit and the implant, the output level of an external phase comparator must exceed a given threshold to signify "acquisition" before data is transmitted from the implant. In a preferred embodiment, a shunt circuit across the tuned coil is opened and closed in accordance with a digital input signal generated by the implant. The external telemetry unit preferably includes a coaxially spaced triple coil assembly. The middle coil transmits the carrier. The outer pickup coils are balanced to minimize carrier reception. For two-way communication an IR transmitter is added to the coil assembly.

Abstract: A dispersive optical spectrometer is disclosed which comprises light detection means, dispersion means for separating light radiation into spectral components and for directing the spectral components toward the light detection means, means for admitting light radiation into the entrance focal plane and for directing the light radiation toward the dispersion means, the light radiation admitting means including a plurality of spaced-apart apertures, and light transmission means for transmitting light radiation from a light source to one or more of the apertures. In a preferred embodiment, the apertures form a two-dimensional, rectilinear array for producing non-overlapping spectra.

Abstract: This invention is directed to a digital feedback control system. The control system includes a controlled device which generates an output signal representative of the operation of that device, with that output signal being a relatively high frequency carrier signal having a relatively slowly varying (compared to the carrier signal) envelope. The control system further includes a difference network for generating an error signal representative of the difference between an input command signal and a sensor signal derived from the output signal of the controlled device. A feedback network is responsive to the output signal to provide the sensor signal. The feedback network includes a selectively operative integrator which generates an integrated signal representative of the integral of the output signal. The feedback system further includes a selectively operable network for resetting the integrator.

Abstract: The invention relates to a glass fibre-reinforced, extruded plastics material hollow profiled strip for the production of window frames, glass doors, or the like. In order to be able to butt-weld profiled strips of this type together when producing the frame and to ensure a reliable bonding between the glass fibres and the plastics material of the profiled strips a synthetic resin is used as the bonding agent which causes this bonding, which synthetic resin has thermoplastic or thermoelastic properties and thus enables the glass fibres to be deflected during butt-welding and pressing together of the ends of the frame pieces.

Abstract: The invention relates to a manipulation system for workpieces, in which the individual workpieces are gripped by manipulator gripping arms and transported to predetermined locations in processing and/or magazine stations. For permitting a technically simple manipulation and transport of workpieces of different shapes by the use of tongs as gripping tools provided at the gripping arms, the invention provides that to an easily accessible wall of the respective workpiece a handling member is secured which is so designed and arranged as to permit the tongs to engage this handling member for transporting the workpiece e.g. from a magazine to the machine tool. Suitably, this handling member is in the form of a hollow pin which with an enlarged base is bonded to the workpiece and, after processing, may be knocked off or separated from the workpiece in some other manner.

Abstract: The ink supply container disclosed herein is adapted for use with a moving carriage printer and controls foaming of a liquid ink in the container by providing, at the top of the container, a well having a sloping floor. Foamed ink is communicated to the well where it is condensed and returns through an opening at the lower end of the floor.