Abstract: A valve assembly for a fluid filter includes a rotatable valve spindle movable with respect to the value housing and having first and second channels communicating with the filter, the channels also communicating with first and second bores of the housing when the spindle is in a first position in which fluid flows through the filter. The valve spindle further includes a third channel to provide a bypass around the fluid filter when the spindle has been rotated to a second position. The valve spindle also includes seal means for sealing the first and second bores when in the second or filter bypass position, which means includes a pair of chambers arranged to be aligned with the bores and a seal member within each chamber arranged to seal the respective bores. Each seal member has an aperture providing communication between its chamber and its respective bore to allow fluid to enter and charge the chambers for forcing the seal members against the bores in fluid tight sealing engagement therewith.

Abstract: A device is provided comprising in combination a support frame, a block or interchangeable element mounted on the frame, a pair of pistons carried by the block and reciprocated by a motor mounted on the frame, a set of ducts and valves connecting the pistons with a drawing reservoir, a delivery duct, and threaded stems to change the stroke of each of the pistons and consequently the amount of the drawn and delivered liquid.

Abstract: A system for monitoring the movement of objects through a predetermined path comprises a sensor producing electrical signals by the movement of the objects through the path, a measuring circuit producing a measurement of the rate at which the objects move through the path, presetting means for presetting a predetermined minimum rate, and an indicator indicating when the measured rate is below the preset predetermined minimum rate. The invention is described as embodied in a seed monitor attached to colter plough blades for monitoring the rate of feeding of the seeds. Also describes is an adapter unit which enables the number of sensors to be multiplied by time-sharing each measuring circuit with a plurality of sensors.

Abstract: A system for deaerating water is offered for use in brewing beer and the like. The novel system comprises a water-receiving preliminary deaerator, a water flow metering device, and a gas-exchange deaerating column connected to the water flow meter. The deaerating column includes a fluid exhaust pump unit bottom, and mounted atop the pump unit, one or more deoxygenating unit modules. Each deoxygenating unit module includes an outer unit wall, a foraminous retainer baffle sheet bottom, and a stack member extending upwardly from the baffle sheet. Together, the wall, sheet and stack form a foraminous-bottomed retainer for retaining a continuous layer of water. Below the retainer is a basin having another foraminous bottom for temporarily retaining liquid falling from the retainer baffle sheet above.

Abstract: A hydraulic or fluid-power brake is disclosed. The brake comprises a stationary housing, and a rotor shaft journaled in the housing. A number of rotor discs are carried on the shaft for rotation therewith, but they are adapted for axial sliding motion on the shaft, as by a spline arrangement. A number of stator discs are interleaved with the rotor discs and are carried on torque pins mounted in the housing for sliding motion in the direction of the rotor shaft axis, but are secured against rotational movement with the rotor shaft and rotor discs. Biasing means such as springs urge the stator discs into braking engagement with the rotor discs. To relieve this braking action and permit free shaft rotation, a primary piston, having an annular skirt surrounding the rotor discs, engages one stator disc to apply a force urging that stator disc in a direction opposite to the force applied by the biasing means so as to release the braking action.

Abstract: There is disclosed a new and improved envelope processing machine. The machine includes a supply hopper for retaining a quantity of envelopes to be processed, cutting means for severing an edge of an envelope, an envelope processing station, envelope feed means, and envelope transmitting means. The envelope feed means removes the envelopes from the hopper and places them onto the transmitting means one at a time in succession. The transmitting means conveys the envelopes to the cutting station whereat an edge of each envelope is severed. The transmitting means then conveys the envelopes one at a time to the envelope processing station which includes envelope opening means having a pair of reciprocating tacky adhesive pads arranged to grip and separate opposite panels of the envelopes to facilitate the removal of contents therefrom.

Abstract: According to the present invention an agricultural machine for forming a round bale of windrowed fibrous material comprises a displaceable chassis carrying spaced apart side plates defining the width of a bale-forming chamber, a pick-up device located towards a forward end of the chassis and adapted to pick-up fibrous material from the ground and to discharge the fibrous material on to a carrying surface, which extends generally horizontally, of a first, fixed position belt conveyor defining the bottom of the chamber, and having a head end adjacent the pick-up device and a return end remote from the pick-up device, and serving to carry the fibrous material away from the pick-up device, and a plurality of additional belt conveyors each having an active surface adapted to co-operate with the carrying surface of the first, fixed position belt conveyor in the forming of a bale by the rolling of fibrous material, at least one of the additional belt conveyors being movable by having one end pivotably mounted, so th

Abstract: An outlet for use with spa pools or the like where water and air are mixed by a "Venturi Pump" to provide a water/air stream, the outlet having a direction control device for controlling the direction of the water/air stream, the "Venturi Pump" being located within the direction control device.

Abstract: There is disclosed a monitoring system for monitoring a plurality of functions or stations in a machine and capable of providing an alarm signal in the event of a failure or significant deviation in any one of the functions, which monitoring system also incorporates electronic circuitry for automatically temporarily disabling the alarm device in the event of a near simultaneous discontinuance or deviation in all of the functions being monitored.

Abstract: A self-tapping, self-captivating fastener is provided for engagement in a predrilled aperture to enable the connection of an electrically conductive element such as a lead wire, or spade type terminal attached to the end of such a wire, to a workpiece or bus bar. The fastener includes a shank and an enlarged driving head, said shank having a threaded portion which includes a thread lead-in portion that tapers and converges in a direction away from the driving head toward an enlarged abutment projection formed at the work entering end of said fastener. The diameter of this abutment projection is less than the diameter of the predrilled aperture and said apertural diameter is less than the crest diameter of the threaded portion. Thus the abutment portion may pass through this aperture with said threaded portion reshaping the periphery of the aperture to form internal mating threads, such that the apertural diameter is reduced to less than that of the abutment portion.

Abstract: A protector for a communications line comprises a three electrode gas tube surge voltage arrester as a primary protective device and metal oxide varistors as additional protective devices. In series with each side of the line, is an inductor that serves to isolate the gas tube from the varistors at relatively fast rise times of transient overvoltages. The gas tube, the varistors and the inductors are all mounted in a single housing that is divided into adjacent sections by an insulating member. The gas tube is in one section and the inductors and varistors are in the other section, the inductors being side-by-side and each coaxial with a pin that is adapted to be connected to the line.

Abstract: A system and method that creates visual images of lip movements on film, video tape, or other recorded media. Speech sounds are analyzed, digitally encoded and transmitted to a data memory device. Stored within the data memory device is a program for producing output data that creates visual images of lip movements corresponding to the speech sounds. Under control of the data for the speech sounds, the graphical output from the data memory device is sent to a graphic output device and related display equipment to produce the graphical display. This display may be combined with the speech sounds so that the resultant audio-visual composite (e.g. a film strip) contain lip movements corresponding to the speech sounds.

Abstract: A ready access closure is provided for communication cables of the type having an outer dielectric sheath and an electrically conductive shield surrounded thereby. The closure further includes a frame structure having end brackets, a longitudinal strap and a longitudinal tie brace, the strap and brace joining the brackets. A ground clamp grips the cable shield and is connected directly to the tie brace to form an electrical connection therewith.

Abstract: In an electronic organ or the like constructed of a plurality of large scale integrated circuit (LSI) chips, the present disclosure relates to a generator chip. The chip is operative over one octave of notes, and a string of chips is cascaded to provide as many octaves as there are in the instrument.

Abstract: A thread-forming screw has a point or lead thread portion having a relatively steep entry angle with respect to the screw axis. Adjacent to the point thread is a tapered thread portion of about two to three pitches in axial length. This tapered thread has a shallow entry angle defined by the taper of the maximum diameter of the thread toward the point. This shallow entry angle may be approximately 5.degree. to 8.degree. or equal to about three times the helix angle of the tapered thread. This configuration of the tapered thread results in a balanced action of thread formation and axial in-feed of the screw, resulting in a lower end pressure to initiate the thread-forming in a workpiece. A roll-threading die is contoured to provide ridges and valleys to effect the tapered thread portion.

Abstract: A portable case, into which the pet fancier puts his small animal and carries it about, is disclosed, wherein the main body of the case is constructed by putting together a pair of side wall boards, a top board connected at its left and right sides to the respective upper end faces of the left and right side wall boards through the aid of hinged joints, and a bottom board connected at its left and right sides to the respective lower end faces of the left and right side wall boards likewise as above through the aid of hinged joints, which main body of the case is furnished at its front and rear sides with the respective on-off door leaves, and the case thus constructed can be simply folded up by opening both the door leaves.

Abstract: There is disclosed a contact lens disinfector unit for disinfecting contact lenses contained within a lens case. The disinfector unit includes a housing having a forward end wall and a rear end wall and a heating block within the housing. A resistive type heater is engaged with the block and is coupled to an electronic circuit and connector to adapt the unit for connection to a voltage source for causing the heating of a contact lens case in engagement with said block, and the contact lenses contained therein to a sterilizing temperature. The housing forward wall includes an aperture which slidingly receives a drawer having a pair of upstanding spaced apart panels and a contact lens case receiving aperture therebetween.

Abstract: The notes of an accompaniment manual of an electronic keyboard musical instrument such as an electronic organ are multiplexed. The key switches are sequentially scanned and the serial information produced is fed into a shift register. Digital circuitry reads the position of data in the shift register to determine whether a recognized chord has been played. After recognition of a recognized chord a counter operating in conjunction with the shift register clock input operates in connection with comparators and frequency generators to produce the necessary notes for the chord played.An automatic mode of operation also is provided in which only the key corresponding to the root partial of a chord need be played. By utilizing the mathematic relationships in a chord, the simple note played by depression of one key is extrapolated into a chord.

Abstract: There is disclosed a new and improved socket for making electrical connections to the pins on the neck of a cathode ray tube. The improvement includes a plurality of first conductive contacts which are arranged to engage the pins of the cathode ray tube and which include an elongated planar portion from which a cylindrical projection is integrally formed. A second conductive contact which is also planar in configuration includes a corresponding plurality of holes therein. Each of the holes has a diameter larger than the diameter of the cylindrical projections for receiving a corresponding one of the cylindrical projections. The improved socket further includes a planar insulating member positioned between the first and second conductive contacts and having a corresponding plurality of holes therein. Each of the holes of the insulating member has a diameter smaller than the corresponding hole in the second conductive contact but at least as large as the diameter of the corresponding cylindrical projections.

Abstract: An analysis instrument for measuring the quantity of a constituent present in a sample of a material comprises a housing having a sample receptacle mounted therein to receive a sample of the material. A filter assembly is mounted in the housing including a plurality of filter elements for passing a corresponding plurality of predetermined frequencies of radiant energy. A motor is provided for selectively providing relative movement between the sample receptacle and filter assembly so as to place individual ones of the filter elements into registry with the sample receptacle. A radiant energy source is mounted within the housing to direct radiant energy onto the surface of the sample through selected ones of the filter elements as each moves into registry therewith, to provide reflected radiant energy at the predetermined frequency of each of the selected filter elements. A sensor is mounted to receive the reflected radiant energy and provide electrical signals corresponding thereto.