Abstract: A multipoint communication digital transmission system in which the main data transceiver of each multipoint communication can communicate simultaneously with a plurality of secondary transceivers and they can each, in turn, communicate with the main data transceiver. First, second and third multiplexer means are provided, each at its own characteristic sampling rate. Selective switching is provided. Corresponding first, second and third multiplexing means are also provided.

Abstract: A carrier conveyor comprising a main runway and a secondary runway each including a chain to which are secured stationary lugs for continuously driving carriers on a runway. A first auxiliary way includes a chain which is arranged to be moved in synchronism with the main chain and has lugs for driving carriers from a waiting position of the secondary way to the main way. Each retractable lug is returned by a spring to an engaged position for driving a carrier. A second auxiliary runway includes a chain which is arranged to be moved in synchronism with the main chain and has lugs for driving carriers from the main way to a stop position of the second auxiliary runway upstream of the secondary runway. A first electromechanical transfer device transfers a carrier from the waiting position onto the first auxiliary runway by an engaged lug of the first auxiliary chain. Movable means disengages selectively the retractable lugs of the first auxiliary chain from the carrier path when no carrier is to be transferred.

Abstract: Method of manufacturing thin film electroluminescent devices composed of a compound of zinc and sulphur, activated by a first metal activator consisting of copper and activated by a second metal consisting of copper manganese, excitable by direct and pulsed voltage.

Abstract: Apparatus for conveying goods in vertical direction, such as a stacker crane or elevator, with a lifting unit and an emergency braking system which influences the lifting unit as soon as a preselectable speed is exceeded. The braking system comprises two wedges connected to an endless rope drive moving synchronously with the lifting unit. The rope drive moves only up to a preselectable top speed, and as soon as a speed difference between rope drive and lifting unit occurs, the brake wedges are activated and decelerate the lifting unit progressively until it stops.

Abstract: A status indicating system for the instantaneous registration of the open and closed states of the switches of a remotely supervised high tension plant comprising a multiplicity of substations each having a plurality of high tension switches which require monitoring and supervision, wherein each switch is provided with two pilot indicating contacts signalling the respective switch position of off and on, said pilot indicating contacts delivering signals to a remotely located central supervision station by means of a long distance transmission circuit where the signals are monitored. In the status indicating system every high tension switch is provided with two proximity switches registering its end positions. The proximity switches are damped by a vane which is moved by an operating shaft of the high tension switch. The two possible outputs of activated proximity switches are always different from zero and these outputs actuate pilot indicating contacts by means of pilot relays.

Abstract: A method of installing a sleeve within an vortex finder of a cyclone separator to adjust the diameter of the vortex setting. To facilitate installation of the sleeve, the dish-shaped bottom of the cyclone is mounted on a plate which can be lowered and then pivoted aside. The sleeve is provided with a collar which is stitch welded to the bottom of the vortex finder to retain the sleeve in place. Alternatively, the collar and vortex finder are provided with a bayonet joint to releasably retain the sleeve. A kit of sleeve assemblies of different diameters is provided to accomodate the adjustment of the vortex setting.

Abstract: Automatic power shearing apparatus and method for trimming sheet material into finished blanks comprising blade means, x and y axis feeding means and sheet feeding means including a first power driven means for moving the sheet in x and y directions and a second means responsive to a control acting to move the sheet in preselected directions by a constant counter balance against the first power driven means.

Abstract: Generator and power amplifier of plasma confining, electromagnetic, light or infrared wave beam. It comprises a generator of a rectilinear polarized wave beam and a solid state laser beam amplifier amplifying the rectilinear polarized wave beam after conversion of the same and having a doped active material in the shape of an annular sleeve member. This amplifier operates in the TM.sub.o annular mode. It is preceded and followed by mode converters. The first mode converter before the amplifier converts the rectilinear polarized wave beam to a TM.sub.o mode wave beam and the second mode converter after the amplifier converts the amplified TM.sub.o wave beam to a negatively azimuthally phase shifted, circular polarized wave beam.

Abstract: A braking system for a freight module, crane module, or the like which is suspended for movement on an overhead guiding rail having the form of an I beam with upper and lower horizontal flanges and a vertical web in which braking results from the pincer action of pivoted pincers having upper arm portions pressing brake shoes, one mounted on each pincer, against the vertical web of the I beam. The lower arm portions of each pincer diverge outwardly and downwardly to provide a triangular opening below the pivot pin and a rectangular opening at the bottom ends. A tension spring is mounted at the base of the triangular portion. A parallelogram shaped cam disc having curved ends is mounted for opening movement between base plates at the sides of the rectangular opening. A motor and shaft rotate the cam through a predetermined arc to apply the braking movement in a controlled manner to gradually slow down the module and avoid oscillations of the module.

Abstract: A keyboard type telephone station connected to a telephone subscriber's line comprises a dial pulse train generator and a dialling multifrequency signal generator. The telephone station includes a control unit connected to at least one current threshold detector for the power level of supervisory or so-called tone signals. The supervisory signals are transmitted from the linking exchange on the telephone subscriber's line and indicate the beginnings of various call dialling phases in setting up a telephone communication. In response to the detection of the supervisory signal, the control unit blocks transmission of the pulse generator and releases transmission of the multifrequency generator, so that only the multifrequency generator transmits only the dialling multifrequency signal associated with the first key of the dialling phase.

Abstract: A composition containing critical proportions of 3 to 5 parts filler, 25 to 35 parts chewing gum base, gum chicle or SBR synthetic rubber, a minimum amount of emulsifier and from 40 to 62 parts of a water based emulsified phase. The emulsified water phase contains 3 to 6 parts sweetener and dissolved, inorganic mineral salts, such as sodium, potassium, calcium and magnesium chlorides and potassium phosphates, at a concentration of about 1% to 3% of the water phase, which is in the physiological range to ameliorate medical conditions such as xerostoma by controlling release of the dilute mineral salt solution during chewing thereof. When saliva is lacking, the liquid may contain dissolved salts higher than the physiological level, with or without 2 to 30 parts per million fluoride ions, so as to prevent demineralization of teeth. Under the direct supervision of a physician or dentist, the fluoride ions (NaF, SnF.sub.

Abstract: A filter press provided with a spray cleansing device of the kind described in U.S. Pat. No. 4,107,042 granted Aug. 15, 1978 to wash filter plates of the press disposed in a stack on horizontal guides in which the spray device comprises a support frame which moves along the stack of plates on the horizontal guides. Two branch conduits of the device are fitted with nozzles and surround a plate being washed to spray wash the plate simultaneously from both sides. The specific improvement in the present invention comprises a novel spray water catch basin which has a width more than twice the spacing between the branch conduits. Movable segments on both sides of the catch basin are provided which may be pivoted about a perpendicular axis to adapt the catch basin to many locations along the filter press.

Abstract: A unitary package for water treatment for attachment to a home hot water heater which is adapted to be easily serviced and readily monitored by the homeowner. The water treatment device is an electrical device especially adapted for separating magnetic particles such as iron particles in feed water pipes to home hot water heaters and the like. The basic structure comprises an electromagnetic coil energized by household line voltage which completely encircles the inlet pipe. The inside of the inlet pipe is fitted with special bearings which support a solid helical impeller which rotates only when water flows through the pipe. The helical impeller is made of ferromagnetic material and is fitted to a very close tolerance to the wall of the inlet pipe thereby sweeping in a broom fashion the inner wall free from particles which tend to deposit on the wall. The electromagnetic unit is a separate part of the package and is completely contained within a housing.

Abstract: A replaceable shallow bottom dish assembly of novel geometry and critical settings which are fixed for the vortex finder and orifice outlet to establish washing efficiency, quality and recovery for ash and inorganic sulfur removal in the water washing of coal. Some operating linear adjustments are the fixed settings of the dish curvature at the throat, the dish depth or height and the distance between the bottom of the vortex finder and the top of the dish. These critical adjustments are best expressed as a fraction of the cyclone inside diameter. The replaceable shallow dish is abrasion resistant and includes an orifice unit supported by a plate bolted to the lower end of the cyclone and designed to be lowered and pivoted away from the cyclone so as to enable easy access into the cyclone for adjustment and repair.

Abstract: A special clamping block in combination with a screw clamp fitted with a pair of bores, one bore provided on the top face of the screw clamp and the other bore provided on the outer side face of the screw clamp, the special clamping block having a clamping ring at the end thereof adapted to receive the neck of an electrical hand drill at said end and having a projection plug which fits either into the top face bore of the screw clamp or the outer side face bore whereby the drill may be positioned to the side of the screw clamp or over the top surface thereof.

Abstract: An inlet line deflector and equalizer means for a cyclone for washing crushed and sized coal with water wherein low density (1.6 or less) washed coal particles escape through the outlet pipe above the bottom collector through the box of the cyclone while higher density (1.7 or higher) siliceous impurities drain out of the cyclone bottom. The higher density impure fractions may be recycled in another cyclone to further fractionate into purified coal and refuse. Pure coal particles flow out through the outlet pipe above the box and impure particles containing shale, rock, clay, etc. drain at the bottom. Laminar flow is uniquely created by (1) providing high solids of about 18% to 50%, (2) at high velocity of about 18 to 28 feet per second within the cyclone and (3) by placement of an inlet line deflector in a predetermined critical dimension in the intake pipe.

Abstract: A metal-oxide-semiconductor field-effect device for constituting a single logic inverter stage. It includes a multidrain transistor operating in enhancement mode and a load transistor, both of monochannel metal-oxide-semiconductor structure. The inverter transistor comprises a single gate region and several drain regions. The single gate region and the single channel region of the inverter multidrain transistor are superimposed on both implantation planes separated by a thin insulating layer, entirely surround each drain region of the inverter multidrain transistor and are entirely surrounded by the single source region of the inverter multidrain transistor.

Abstract: Using anti-IgG and anti-Fc sera which is reacted with gastric cancer juice from a patient by double diffusion on Ouchterlony agarose, there is repeatedly obtained a double precipitin line. Under immunoelectrophoresis, anodic displacement of anti-IgG and anti-Fc sera is observed. The .beta..sub.1 to .alpha..sub.1 precipitin line with anti-IgG and anti-Fc is thus formed to be characteristic of gastric cancer juice. These double precipitin lines correspond to an antigen-antibody complex which are uniquely identified by Ouchterlony immunodiffusion assay with these anti-immunoglobulin sera. Only a single precipitin line is formed between gastric cancer juice and anti-Fab serum.Both with anti-IgG and anti-Fc, various lines are obtained under immunoelectrophoresis with different mobilities, from gamma to .alpha..sub.1. With anti-Fab, however, there is no displacement toward the anode. Normally, Fc seldom moves beyond the site of origin.

Abstract: 1.