Abstract: In a floor lamp having, as a stand, upper and lower telescoping rigid tubes extending between a supporting base and a supported lamp socket, an electrical cord extends from the base to the socket through a spring-like plastic sleeve, which has an upper portion that is fixed to the upper tube, a medial portion that is extended linearly through the lower sleeve and a lower portion that is coiled compactly in the base. Reciprocation of the upper tube in the lower tube in order to adjust the height of the socket causes more or less of the plastic sleeve to be stored in its lower coiled portion while preventing fouling of the electrical cord as a result of frequent raising and lowering of the stand.

Abstract: A filtration system comprises a relatively thin prefilter medium and a relatively thick main filter medium, which are so related that the pore size of the prefilter medium is no greater than the pore size of the main filter medium. The purpose of the prefilter medium is to prevent premature clogging of the surface of the main filter medium. The arrangement is such that backwashing or replacement of the prefilter medium can be effected readily in order to prolong the life of the main filter medium.

Abstract: A visual transparency projector has a short throw, oblique incidence catadioptric optical system, capable of enabling (1) a viewing screen and (2) the projector with its operator to be seen by an audience in side-by-side relation.

Abstract: The design of a large copy projector is such that its projection path extends rearwardly and obliquely so that the projector and the viewing screen can be viewed side-by-side. This projector uses an opaque copy sheet characterized by an under specularly reflecting face that is accessible to the optical system from below but that can be marked from above by a chemical reactant ink from a user's pen or the like. Simultaneously, the upper face is unobstructedly available for direct observation and manual access and the lower face is unobstrusively available for imaging projection through a folded optical path below the copy sheet, which is established by a short throw, oblique incidence catadioptric optical system.

Abstract: An electro-optical device for generating data signals representing relative displacement between an aperture pattern in a reference plane and a reflective pattern in a measurement plane comprises a reference detector for sensing reference radiation directed towards the aperture pattern and a convolution detector for sensing the reference radiation reflected by the reflective pattern. The phase of a signal generated by the convolution detector is compared to the phase of a signal generated by the reference detector for generating the data signals defining the relative displacement between the aperture pattern and the reflective pattern.

Abstract: An apparatus is provided for removing the skins from shelled nuts. Nuts such as peanuts are fed into a hopper mounted to a carriage adjustably positioned above a horizontally moving conveyor belt. A plurality of spaced parallel baffles extends diagonally across and slightly above the upper reach of the conveyor with the working faces of the baffles being of an abrasive character. The nuts are fed from the hopper in individual streams between baffles and onto the conveyor where the combined action of the longitudinally moving belt and the diagonally extending fixed baffles will rotate the nuts and move them lengthwise along the baffle to one side of the conveyor, removing the nut skins in the process. The carriage is mounted on a first pair of tracks extending parallel to the baffles with a lead screw and crank provided for moving the carriage diagonally with respect to the belt in order to dispense the peanuts at different spaced points along the baffles.

Abstract: A pulsed electron beam generator produces a short duration pulse of electrons in the form of a directed beam for thermal processing of a semiconductor device, which is positioned in a pulsed electron beam chamber so that the propagating electron beam impacts upon the device surface in selected regions of the device that are to be processed. Energy deposited by the impacting electron pulse momentarily elevates the temperature of the selected regions above threshold processing temperatures for rapid, effective annealing, sintering or other thermal processing. The characteristics of the electron beam pulse are such that only those surface vicinity regions to be processed are elevated to a high temperature, the remaining mass of the semiconductor device not being subjected to unnecessary or undesirable high temperature exposure.

Abstract: A solar control film, for application to window glass by the consumer with minimum or no preparation, comprises a vapor deposited aluminum coat, which partially transmits light, interposed between a vinyl stratum and a polyester stratum, either of which contains an ultraviolet inhibitor and each of which is self supporting. This film is adhered by pressing the surface of its vinyl stratum against the window glass in either dry or wet condition.

Abstract: The design of a large copy projector is such that its projection path extends rearwardly and obliquely so that the projector and the viewing screen can be viewed side-by-side. This projector uses an opaque copy sheet characterized by a lower specularly reflecting face that is accessible to the optical system from below but that can be marked from above by a chemical reactant ink from a user's pen or the like. Simultaneously, the upper face is unobstructedly available for direct observation and manual access, and the lower face is unobstrusively available for imaging projection through a folded optical path below the copy sheet and a wide angle projection lens positioned at the side of the copy sheet.

Abstract: A liquid filter comprises an open cell, elastomeric foam body and a dimensionally stable gate. The foam body is formed with a central opening that defines an inlet surface through which a liquid to be filtered enters. The periphery of the foam body defines an outlet surface through which the filtered liquid exits.

Abstract: Various sizes of dial indicators are assembled from different size casings and a single size, interchangeable gear train sub-assembly. The sub-assembly includes a gear train mounted to one face of a single size plate which, in turn, is mountable to a gauge casing of any one of a number of different sizes. In a smaller size casing the sub-assembly is mounted directly to the casing while in larger sizes an adapter ring is provided. The use of a single-size, interchangeable gear train sub-assembly reduces inventory requirements, provides uniformity of parts and facilitates servicing of the instruments by mounting the train on one face of a single plate. Adustable stop means are provided for the spindle to limit its return and thereby allow the same spindle to be used with indicators having different operating ranges.

Abstract: A uni-directional viewing system with an obliquely disposed mirror defining a beam splitter for partial reflection and partial transmission of a light beam that is generated by a source and having an absorber disposed at one side of the mirror for absorbing the beam that is transmitted through the mirror. The reflected beam is directed towards a viewing port, which is disposed at the other side of the mirror. An eye port, which is disposed on the absorber side of the mirror, is provided for observing a subject at the viewing port. The observed subject views only the image of the source and the observer views the observed subject.

Abstract: A tubular paper core, about which a hard surface floor covering is coiled, is provided at its opposite ends with a pair of cap assembages, each of which includes inner and outer clamping disks and a collar, each disk formed with a central opening. The side margins of a web, which is wrapped about the floor covering roll, are crimped and glued to the exterior face of the inner disk and the interior face of the outer disk. The collar, which includes a tubular neck portion and an annular flange portion, is disposed between the disks, the flange portion being captively held between the disks and the neck portion being received within the opening formed in the inner disk and the tubular paper core.

Abstract: A system and method are provided for use in training individuals in biofeedback techniques. A variety of physiological functions are monitored on separate channels and associated circuitry generates feedback signals for each function. The feedback signals from the various physiological functions preferably are combined in a matrix from which an output is generated only under predetermined conditions as when two or more of the monitored functions are within the parameters set for each separate function.

Abstract: A toy for use by children which can be pushed and steered and which upon its front end includes a bumper having an electromagnet for magnetically attracting a cooperative magnet on a rear of a toy vehicle so that the vehicle can be pushed into different directions, and the electromagnet being manually controlled by a push button located near a steering wheel.

Abstract: A foraminous basket is provided for use in washing and drying eating utensils in large volume dishwashers such as found in restaurants, institutions and the like. The basket is formed with a plurality of compartments for sorting the utensils prior to washing. Hinged covers are provided for closing the compartments and a handle is furnished on the covers for lifting the basket from a horizontal loading position to an upright washing position. Legs are provided for drainage purposes and for handle clearance when baskets are stacked on one another.

Abstract: A tool is provided for use primarily by professional carpet installers to trim an even strip of carpet around the boundary of a pad or pre-laid carpet prior to the installation of new wall-to-wall carpeting. The tool includes a body portion having an angularly adjustable handle and carrying a pair of cutters mounted to the front wall thereof and projecting downwardly to cut a rug or a pad when the body portion is moved over the top surface of a carpet or pad. The body portion is mounted on rollers and is also provided with an adjustable guide which slides against the wall or baseboard to control the width of the cut being made.

Abstract: Excessively high or low tire pressure is detected automatically with a warning signal generated for the operator. A device is attached to each wheel and includes a spring-loaded piston mounted for reciprocation in a cylinder formed in the device. The cylinder is provided with a porting arrangement which opens only at certain pressure limits. When the ports are opened a sonic or ultrasonic signal is generated and detected by sensors located in proximity to each wheel. The signals detected by the sensors are processed and utilized to actuate a warning signal that provides a visual and/or audio output for the operator. Means are provided for discriminating between background noise and the generated signal as well as to discriminate as to the location of the affected tire. In a modification of the invention, a reserve chamber is integrated into the body of the wheel and is adapted to replenish automatically air lost from the tire.