Abstract: A compressor limiter is provided for the processing of audio signals. Fundamentally, the invention includes an amplifier receiving audio input signals and including a photoresistive element in the feedback circuit thereof. The output of the amplifier is provided to a dual stage control voltage generating circuit. The first stage generates a current through a light emitting diode corresponding to the amplitude of the output signal from the amplifier. The light emitting diode sets a threshold for suppression of the output audio signal such that, as light is emitted from the diode, it effects the photoresistor in the feedback circuit of the amplifier, thus adjusting the gain. The other branch of the control voltage generating circuitry comprises a peak detector which is operative for controlling the light emitted from the diode when successive audio signals exceeding the threshold are received in rapid succession.

Abstract: A dispensing container for liquid wherein the total of all of the internal forces operating on the liquid and tending to cause it to flow from a passageway in the container is overcome when the container is at rest by the total external forces acting upon the container, but wherein the total internal forces exceed the external forces when the liquid within the container is placed in motion to cause the dispensing thereof.

Abstract: A device constructed of prefabricated materials which can be used for display of merchandise and/or printed materials in stores, malls and the like. Modular construction permits tailoring the size of the display according to individual needs. In one embodiment of the device, pairs of uprights are attached by means of a novel retainer clip which allows the insertion of a panel between the upright pairs. The resulting structure is extremely rigid, yet can easily be assembled and disassembled without the services of a carpenter.

Abstract: A system for fabricating a prefabricated home module utilizing a truss floor system with integral duct work. The module is assembled on carriers which run along a pair of tracks. A plurality of carriers can be connected to form a train which is moved from one construction station to the next. The module and mating deck components are transported to a home site and installed. The system relates to the construction of a home or building, and to modules therefor which are easily assembled, produced under factory, quality controlled conditions, and are inexpensively made.

Abstract: This tool is for performing precise machine operations on boiler tube ends, while the tubes are in place in the boiler, and it consists primarily of a hand-held housing, including therein a main gear and pinion gear, designed specifically for strength and long life, the combination serving to rotate a cutting tool holder, having a multiple number of cutting blades. It further includes a self-contained air motor, for driving the cutting tool holder, so as to mill the outside diameters of the boiler tubes, and the tool also includes a collet and rod secured to its center shaft, for locking the tool in a boiler tube.

Abstract: The present invention relates to a process for recovering the exhaust heat using the working fluid of the toluene (or benzene)-water system in the vapor cycle, when the moderate heat energy of 400.degree.-750.degree. C. is converted into work.In practice, in order to obtain the maximum overall thermal efficiency .eta.m, the working fluid of the Rankine cycle in the recovery of exhaust heat of the temperature of 400.degree.-700.degree. C. is suitable to be the mixture of toluene (or benzene) and water containing 20-80 mol. % of water, while the working fluid of the reheating cycle in the recovery of exhaust heat of the temperature of 600.degree.-750.degree. C. is suitable to be the mixture of toluene (or benzene) and water containing 45-90 mol. % of water in considerations of the thermodynamic efficiency of vapor cycle, the performance of the exhaust heat boiler and other factors.

Abstract: A device is disclosed which humidifies the incoming air to an internal combustion engine or an air compressor. The device employs a moistened wick which transfers water from a water reservoir to the incoming air. The humidified air reduces the carbon build-up in an engine and increases the efficiency thereof. A humidistat is provided for automatic adjustment of humidity and the heating of incoming air prior to humidification.

Abstract: A notching tool for forming notches in ridge- or hip-capping for roofs, the notches being formed to match the profile of the roofing sheets.The tool has a base with a pair of spaced feet which engage the ribs on the roofing sheets to align the tool. A notching head on the base has a replaceable die and punch pair, one of which is fixed to support the capping while the other is manually or power-operated to provide a shearing-type cutting action between the die and punch to cut the notches. Adjustable guides on the notching head support the capping for angular alignment between the capping and the notching head and for adjustment of the depth of the notch. The notching head may be pivotally and/or rotatably mounted on the base and the die and punch may be reversible.

Abstract: A disposable, individual coffee container and filter unit including a flat frame having an apertured center section, filter layers covering the top and bottom of the frame and being secured thereto, and individual quantities of coffee received in compartments formed in the frame between the spider-like center sections thereof. Additionally, a coffee brewing receptacle having an apertured base and a retainer flange in the base thereof for engaging the coffee carrying flat frame is provided.

Abstract: The method and production of macromolecular monomers from cationically polymerizable monomers and vinyl-substituted hydrocarbon halides is disclosed. These cationically polymerizable monomers may react in the presence of a catalyst with the hydrocarbon halide to produce a macromer retaining a polymerizable headgroup. This compound may be used in a variety of copolymerization processes with a variety of copolymerizable monomers to form graft copolymers.

Abstract: A portable security device adapted to be removably mounted on a door frame adjacent the inside of an inwardly swinging door to prevent the opening of the door and actuate an alarm when forcible entry is attempted. A steel rod is embedded within a rigid housing and extends outwardly from an end wall of the housing. The rod is removably inserted into a complementary-shaped hole in the door frame. The housing has an angled wall extending downwardly toward the rod and forms an exterior angle of between 120.degree. and 165.degree. therebetween. The angled wall lies in abutting relationship with the inside surface of the door blocking the opening of the door. A battery-operated alarm is contained within the housing and has a control button that projects outwardly through a hole in the angled wall and engages the door for actuating an alarm switch. The angled wall may be covered with a sheet of resilient material with the switch button extending a short distance beyond the outer surface of the resilient sheet.

Abstract: An electro-heater container comprising a cup having a bottom and including a stem type support pedestal formed as a unit with the cup, the bottom having a center aperture therein extending through said support pedestal, and an electric heater unit is secured to the bottom by a member extending through the stem and a base disc of the support pedestal for heating contents of the container.

Abstract: An abrasive or polishing sheet has indicia carried on its rear face overlaid by a translucent textile material providing a surface engageable by hooks, the material being adhered to the said indicia and their information content remain discernible through the said material. The sheet can be secured to a hooked surface of a carrier unit and can be removed therefrom and reused. The grit size indication is provided without needing to print the fabric.The textile material is a brushed, knitted nylon having less than 20 loops or curls per square mm. A carrier pad has a material to which the sheet can be attached. The material of the pad has inclined stalks extending therefrom which have unhooked ends. These features result in a very low peel strength between sheet and pad.

Abstract: An adapter reel of the type which is mounted on a hub of a machine for holding and dispensing a coil of wire. The reel has a central tubular sleeve which is adapted to be slidably mounted on a machine hub. A plurality of base plates are mounted on the sleeve and extend radially outwardly in a spokelike fashion. A coil holding arm assembly is movably mounted on each of the base plates for receiving and holding a coil of wire. Each arm assembly includes an inverted L-shaped rod attached to a sleeve which is slidably and pivotally mounted on an upstanding post which is attached to the base plate. The sleeves and rods are movable between locked and unlocked positions. A lower end of the rod extends beyond the lower end of the sleeve and is engageable in a hole formed in the base plate to lack the arm in a coil holding position.

Abstract: A transmissive reflector which both reflects light and lets light pass therethrough. The transmissive reflector comprises a nacreous pigment in combination with a transparent adhesive. The nacreous pigment and the transparent adhesive can be separately coated on a clear or transparent substrate or combined as a blend or mixture thereon. The transmissive reflector imparts lustre or a pearlescent effect to light as well as diffuses the light and, thus, enhances the appearance of various articles such as transparencies, rear projection screens, projection television, and the like. Also, when utilized as a reflector as for a background, the reflected light has a lustre imparted thereto and thus any article displayed is distinctly set forth, as for example, a liquid crystal readout, and the like.

Abstract: A hitch for mounting on the back of a vehicle for towing a trailer or other equipment. A ball is mounted on the extended end of a hook portion of the main hitch body and is adapted to receive either a lunette or hooded-type coupler thereon. A closure latch is pivotally mounted on a rear portion of the hitch body and is engageable with the ball when securing a lunette coupler on the hitch and is alternately engageable with the hood of a hooded coupler when securing such a coupler on the ball. A spring-biased first locking pawl is pivotally mounted on the closure latch and is clamped against a shoulder on the hitch body by a spring to lock the latch in closed position with a hooded coupler. A second locking pawl is pivotally mounted on the first locking pawl and is clamped against the shoulder by the spring to lock the closure latch in engaged position with the hitch ball when securing a lunette coupler thereon.

Abstract: A half-flush mechanism for a commode. The half-flush mechansim allows user control of the amount of water used in flushing the commode. Activation of the mechanism entails pushing of a button located in an otherwise conventional flush handle. The mechanism is always in the full flush mode and returns to the full flush mode until again activated by the pushing of the half-flush button. The half-flush mechanism is adaptable to a variety of commode designs and may be adjusted by the user to release varying amounts of water during the half-flush mode.

Abstract: A kit for children's playing, fortune-telling, learning or the like use, including at least one pair of block pieces each carrying a figure thereon and at least one of which is of transparent material. The block pieces, of planar or cubic form, are laid one on the other to form a composite picture of the figures carried by the respective pieces, which is visible viewed from the transparent block side and changeable by changing the relative angular position of the block pieces. The cubic block pieces can each have three different figures respectively applied to its three faces forming a vertex so that the number of composite pictures obtainable therewith is multiplied. The wide variety of composite pictures obtainable with the play kit of the invention makes it highly attractive to children and also to grown-up people, despite of its extremely simple construction.

Abstract: A pressurized aeration tank is provided which comprises an inner barrel arranged on the tank axis and an axial-flow impeller of optimum characteristics mounted therein, the inner barrel and the outer barrel or body portion of the tank being particularly proportioned and arranged relative to each other to define in the tank a circuitous flow passage of minimal total resistance loss. With this tank structure, a highly improved plant efficiency of BOD removal is readily obtainable with the use of concentrated activated sludge and aerobic microorganisms, mainly of the Opercularia group, in a specified range of tank pressure.

Abstract: The invention sets forth novel telechelic (terminally functional) prepolymers which may be reacted to form curable epoxides. On account of the incorporation of saturated elastomer chains into the prepolymers improved epoxides arise having increased moisture resistance and less brittleness than conventional epoxides. These prepolymers may be straight chain or three-armed star, emanating from a common phenyl ring nucleus. Molecular weights of the prepolymers range from about 700 to 50,000 (linear) and from about 1000 to about 75,000 (three-arm star). The epoxides are useful as coatings, in adhesives, as additives, and the like.