Abstract: A mobile type housing is provided with a plurality of telescopic movable support elements which are mounted on a base structure for movably supporting the top of the mobile housing between a lowered position and a raised position relative to the base. A pair of lugs are mounted to the base for simultaneous movement between first positions and second positions, the movement of the lugs being substantially parallel and in opposite directions to one another. A plurality of flexible, elongated, incompressible connector elements are connected between the pair of lugs and respective ones of the support members for movement with the lugs during raising and lowering of the top from its respective lowered position and raised position. Drive means is coupled to the pair of lugs to effect simultaneous movement thereof between their first and second positions.

Abstract: A reuseable catheterization unit, including a catheter member of a predetermined diameter, a hollow flexible sleeve means connected at one end to the large diameter portion of the catheter and a hollow tubular connector means positioned at the opposite end of the sleeve means and axially spaced from the anterior end of the catheter, said connector mean adapted to sealingly connect with the large tubular end of the catheter to form a closed ring capable of sealingly retaining an antiseptic fluid within the lumen of the sleeve as well as contacting the exterior and lumen of the catheter for aseptic storage between catheterization procedures.

Abstract: Apparatus comprising in combination, an analytic circular stage rotatably mounted on a casing containing the whole apparatus, means to stepwise rotate said stage, a set of sample-carrying test tubes located in an annular array on said stage, a set of reaction test-tubes located concentrically and outside of said sample-carrying test tubes, aligned radially with said sample-carrying tubes so that two reaction test-tubes will coincide with each sample-carrying test tube, a first needle-carrying head located above said stage and destined to draw the sample and to add the reagents, and a second needle carrying head, located by side of the first cited head and destined to draw the liquid from the reaction tubes and to send it to the metering instruments.

Abstract: A multiphase, full-wave rectifier assembly for an alternator has first and second mutually parallel plates carrying first and second sets of diodes. Connectors electrically connect terminals of respective diodes of the first and second sets with each other and with terminals of respective field diodes heads of a multiphase stator of the alternator are connected respectively with the connectors. Each field diode is held in a respective recess defined between first and second plates of a common electrical connector for the field diodes. Each recess is defined by a U-shaped portion in the first plate of the common electrical connector and a part of the second plate of the common electrical connector, said part closing the U-shaped portion. Deformable tags on the ends of the U-shaped portions pass through corresponding slots in the second plate of the common electrical connector and are deformed so as to hold said plates together.

Abstract: An attachment is disclosed cooperating with an electro-discharge machining apparatus having a main shaft which is movable in the vertical direction. The attachment is mounted between the lower end of said main shaft and an electrode for carrying out electro-discharging. The attachment provides a planar movement of the electrode, and controls the vertical movement of the main shaft so that the planar and vertical movements of the electrode are made alternately.

Abstract: A continuous flow moisture tester includes first and second electrodes defining a capacitive-type test cell. The first electrode comprises a generally cylindrical tube of electrically conductive material, and the second electrode comprises a generally planar body of electrically conductive material disposed adjacent an inner wall of said first electrode member to define a substantially unobstructed passageway between the electrode members. Material carrying members are connected at an inlet and outlet of the passageway for providing a substantially constant flow of material therethrough and for maintaining the passageway substantially evenly filled with flowing material. An electrical circuit is connected with the test cell for producing a signal corresponding to the moisture content of the material flowing therethrough.

Abstract: A monitor for a plurality of functions associated with a structure such as a livestock confinement structure or the like including detecting fire or intrusion, and monitoring temperature, water supply, ventilation and power supply. The monitor comprises a plurality of sensors mounted at a plurality of locations about the structure adapted for detecting and/or monitoring the above mentioned parameters and providing respective electrical signals corresponding thereto. An electronic circuit is connected with the sensors and includes first indicator circuits connected with the sensors associated with temperature monitoring for producing indication signals in response to variations in the electrical signals therefrom from predetermined ranges of values, and second indicator circuits connected with the remaining sensors for producing indication signals in response to predetermined values of the electrical signals therefrom.

Abstract: A line protector for a communications circuit provides overvoltage and overcurrent protection. The overvoltage protection is effected through an arrester that provides an arc gap from the line to ground. For overcurrent protection a fusible element is melted by a heat coil causing a conductive cup to move into engagement with a conductive plate that is connected to a line pin, thereby forming a direct metallic shunt to ground. The heat coil assembly, the line pins, and the contact plates associated with the line pins are mounted on a dielectric sub-base which in turn is supported by the base of the protector. The ends of the heat coil are welded to the contact plates and the line pins are staked to the contact plates, thereby eliminating noise-causing butt contact connections in the line circuit.

Abstract: A machine for automatic weld of abutting pipes or accessories for ducts, or generally of circular solids, by the TIG or PLASMA process, with or without weld metal, comprising a control unit for programming the weld parameters according to cycles suitable to the different types of welds, and a stationary body which can be tightened on the pipes to be welded, supporting a welding torch capable of performing a multiplicity of revolutions about the pieces to be welded, comprising means for tightening said machine on the ends of the pipes to be welded, comprising an element fixed to the body of the machine, and an element movable with respect to the stationary element; means for positioning the welding torch with respect to the ends of the pipes to be welded; means for rotating in a controlled way said torch with respect to the ends of the pipes to be welded, so as to render possible to change several times, even during the same revolution, besides between one revolution and the next one, the welding parameters (s

Abstract: A security hinge construction includes a pair of hinge leaves each having at least one knuckle. An electric switch is fixedly mounted within one of the knuckles and a switch operating means is disposed within the other knuckle. The switch or electrical component is sealed within its associated knuckle and an O-ring seal is disposed between the two knuckles to effectively seal the switch or electrical component from the intrusion of moisture or the like which negates the monitoring effect of the assembly if such sealing means were not present.

Abstract: A seed sensor detects seeds passing through a chute or housing forming a path of travel for seeds dispensed from a seed planter. A source of light such as a light emitting diode is optically exposed to the path of travel and a photosensitive element such as one or more photoresponsive transistors is optically exposed to the path of travel for receiving the light from the light source. An electronic circuit is connected with the photosensitive element for producing an electrical signal responsive to the light level incident thereupon and producing a change in the electrical signal in response to a momentary change in light level due to the passage of a seed. The electronic circuit includes a circuit element such as a diode connected with the photosensitive element for maintaining at least a given amount of change in the electrical signal output level in response to a given change of light level corresponding to passage of a seed.

Abstract: A sterilizer or aseptor for contact lenses and the like is disclosed, which provides a capsule adapted to both carry and sterilize a single set of contact lenses. The sterilizer includes a well adapted to receive the capsule, and when the well is heated, sterilizing action occurs within the capsule. A cover is locked into a closed position to prohibit access to the capsule and well when the well is heated to an elevated temperature.

Abstract: An apparatus for mixing photographic process chemicals, and supplying the mixed chemical to a film processing unit. The apparatus provides a chemical holding tank having a water supply inlet and a chemical discharge outlet thereon. The tank is provided with submersible pumps for agitating the contained chemical. Sensors on the inner portion of the tank detect when the process chemical reaches a minimal level whereupon water is added through the water inlet to fill the tank to its maximum whereupon the water supply is automatically shut off. In the preferred embodiment, an operation can add dry chemicals or liquid concentrate to form the finished process chemical. The sensors can be adjusted to vary water levels as needed for adapting the system to different chemical-water mix ratios as specified with the concentrated chemicals supplied by different manufactures.

Abstract: A seed sensor for sensing seeds flowing along a path is provided with an electromagnetic transducer having a movable diaphragm. An arm is secured to a generally peripheral portion of the diaphragm and extends into the seed flow path to be struck at random by the seeds. The arm has a portion operatively engageable with a mid portion of the diaphragm and functions as a mechanical amplifier to actuate the diaphragm when struck by the seeds for producing usable output signals.

Abstract: A programmable rhythm unit is disclosed for electrically simulating sounds of a plurality of rhythm instruments being played in selected ones of a plurality of different rhythmic patterns. A variable frequency oscillator cooperates with a counter/divider and decoder circuit to provide a predetermined number of beats or pulses per measure at a tempo which may be varied by the user. Also provided is a plurality of keyed audio circuits which each produce a characteristic burst of output signals that simulate the audible output or voice of a corresponding rhythm instrument. Switching means are provided whereby the user can select any of the voices to play at any beat position. In addition an alternate beat pulse source is provided which can be selected by the switching means to play any of the voices at a particular beat position every other measure. A pseudo-random generator is also included which may be selected to play any of the voices at a random beat position in each measure.

Abstract: A semiconductor device is surface-passivated by a multi-layer film which includes a base coat of substantially undoped polycrystalline silicon in intimate contact with the substrate and bridging the semiconductor junction. A top coat of polycrystalline silicon is doped with oxygen and disposed overlying the base coat.The method of passivating a semiconductor device includes initial formation of a base layer of substantially undoped polycrystalline silicon from a controlled atmosphere of a silane material. This is advantageously followed by a deposition of oxygen-doped polycrystalline silicon in continuation of the atmosphere of silane material with the added introduction of a gaseous oxygen donor.

Abstract: An electrical coil assembly comprises a rectangular, flat annular coil and a flexible annular covering of, for example, fibre board sheet surronding the coil so as to provide a substantially dustproof seal. The covering is formed by folding and glueing a blank around the coil. The blank comprises a rectangular annular portion a first pair of flaps extending one from each of two opposite outer peripheral sides of the annular portion, a second pair of flaps extending one from each of two opposite sides of the inner periphery of the annular portion and further flaps extending from the outer periphery of the annular portion. The annular portion is provided with fold lines and is of a size, when folded, to overlie opposite faces of the coil and the flaps fold around the inner and outer peripheries of the coil to provide a substantially dustproof seal.

Abstract: A modular termination system includes one or more first terminal block modules aligned side by side and second terminal block modules spaced vertically below the first modules. Jumper routing modules are interposed between the first terminal block modules and second terminal block modules and between the two rows of second modules for orderly routing of jumper wires. The second modules are hingedly mounted to a base which also mounts a plurality of cable connectors and cable guides disposed for orderly arrangement of cables running to the cable connectors. The hinges allow access to the backs of the terminals on the second terminal block modules, and to conductors wired to the back sides of the terminals from the cable connectors. The first terminal block modules are mounted upon panel-supports which also mount similar cable connectors which are joined by conductors to the back sides of the terminals on these terminal block modules.

Abstract: A mobile dental unit is disclosed which provides physical support for dental operations during a long period of time when the operations are conducted in remote or out-of-office areas. A wheeled cabinet defines a lower compartment containing a source of compressed air, a vacuum chamber and a vacuum pump. The upper compartment contains a storage space, a pressurizable water reservoir, and an amalgamator. The source of compressed air illustrated here is a tank of the variety offered for use in self-contained underwater breathing apparatus. This source tank provides air for direct use in dental operations and also operates the pneumatic drives of dental handpieces. A patient support structure can be associated with the unit to permit an infirm patient to be treated in a supine position.

Abstract: A rectifier and brush assembly for an alternator has a rectifier comprising two parallel spaced phase plates carrying respective sets of diodes. The terminals of respective diodes of the sets are soldered to respective connectors. One terminal of each of a set of field diodes is also soldered to each connector while the other terminal of each field diode is soldered to a connector common to all the field diodes. This common connector has an integral apertured flange which is secured by a screw against a conductive plate carried by a housing for the brushes. The conductive plate is electrically connected with one of the brushes in the brush housing. The brush housing also carries a voltage regulator of which a lead is crimped to an apertured electrical connector secured by the screw to the conductive plate.