Abstract: A multiple channel communications system and method for communication among multiple channels using a channel selectable MODEM. The system is comprised of a coaxial cable, a variety of interface units with attached communicating devices and a channel bridge. The interface units include a MODEM and a microprocessor based support element adapted for the attached communicating device. The channel bridge includes two or more MODEM's and a microprocessor based computer for receiving data from one MODEM and transmitting the data on another MODEM.

Abstract: A method and apparatus for encoding and decoding digital information upon a recording medium using the time interval between adjacent pairs of pulses. A number "n" of unique time intervals between pulse pairs correspond to "n" unique symbols contained within a coding table. Assignment of the durations between pulses adapted to the frequency of occurrence of particular symbols within a data stream materially increases the efficiency of the method. Division of the data stream and numerical transformation of the data stream improve the efficiency of adaptive assignment of the durations between pulses on the basis of frequency of occurrence of particular symbols within a data stream. The method realizes a multiple-fold increase in data storage capacity of rotating magnetic disk memories over common MFM encoding, and the method similarly realizes a multiple-fold increase in data transfer rate for telecommunications applications.

Abstract: An improved floppy disk having a liner material into the fibers of which has been compounded identically the same lubricant as that compounded into the surface of the magnetic recording disk.

Abstract: A switching circuit for conducting a pulse of current between a first and a second terminal, the circuit including a transistor having a base connected to the first terminal, an emitter and a collector and a saturable-core transformer having an emitter winding coupling the emitter to the first terminal and a collector winding coupling the second terminal to the collector so as to provide regenerative current feedback rapidly driving the transistor into saturation after the transistor is suitably triggered, the circuit diverting the collector current from the emitter to the base circuit sweeping carriers out of the base and hastening the transistor turn-off after the transformer core saturates decoupling the emitter and collector windings.

Abstract: A method and apparatus for burnishing the coated recording surface of magnetic disks. The method consists in contacting the coated surface of a rotary disk with a longitudinally stationary length of an abrasive burnishing tape while oscillating that tape laterally back and forth across the surface. The length of the tape has a first segment which is urged into contact with the coated surface and a much longer second segment which is urged into contact only by its own weight. Prior to burnishing each surface, the tape is advanced longitudinally so that a section of the tape serves as the first segment for only a single coated surface and so that a section of the tape to serve as the first segment has already served as the second segment in burnishing prior coated surfaces. The apparatus employed to burnish the coated surface of disks has a rotating platen onto which a disk is placed and an arm around one terminal end of which the tape passes.

Abstract: Apparatus and method for rapidly removing fuzz from about the edges of sheets of material and apertures within those sheets without damaging the sheet material performed by passing the sheet quickly through a flame.

Abstract: A multiphase modular chemical processing station including an exterior frame in the shape of an open rectangular solid, a plumbing-electrical structure extending across the lower back portion of such frame, the plumbing-electrical structure including liquid and gaseous input and exhaust connections as well as electrical connections and being divided into four specific module attachment positions, and a plurality of structurally similar interchangeable processing modules for mating with the plumbing-electrical structure and fitting within the exterior frame, each of the modules including a body element, the body having a cavity in its interior, a drawer extending forward from the lower portion of the body, and a work surface extending across the upper surface of the body, and each module further including a neck portion having ventilation means therein and extending upward to an upper portion containing a control panel for the module.

Abstract: A jet etch apparatus and method for decapsulation of molded devices having an etching block through which an etchant solution is drawn. The etchant solution which flows through the etching block forms a jet spray that impinges upon a device to be decapsulated. The etchant solution is drawn through the etching block by means of suction created by a jet pump. The decapsulation process is monitored by detecting current flow between an electrode in the etchant solution and the device. The imposed current also serves to limit excessive oxidation of aluminum pads within the device, thereby preventing attack of the aluminum by the etchant.

Abstract: A clipper assembly for clipping nails, including a nail clipper with a flexible housing attached to the nail clipper for collecting nail clippings during and after operation.

Abstract: A plasma processing chamber incorporating parallel plate electrodes whose separation may be mechanically adjusted from the outside thereof. The chamber includes a sealable assembly including an electrode housing and a reaction chamber body. The body includes an aperture to receive a planar surfaced terminal end of the housing. The aperture is constructed to permit the housing to be easily translated with respect to the body. One electrode surface of the chamber is established on the end of the housing thus received. The other electrode is provided by a corresponding surface within the body. Entry of atmospheric gases into the space between the electrode's surfaces is barred by a sliding, dual, differentially pumped seal between the housing's surface and the aperture's surface. Also incorporated into the processing chamber are four jackscrews aligned parallel to the axis of the housing.

Abstract: A telephone privacy controller for connection in series with a telephone set having steering diodes that direct current through a silicon controlled rectifier which is activated to conduct current by a zener diode connected between the current input and the gate input of the silicon controlled rectifier. The telephone privacy controller may be adapted to include a privacy release feature by addition of a capacitor and resistor connected to the gate input of the silicon controlled rectifier wherein the discharge from said capacitor may provide an input to the gate of the silicon controlled rectifier.

Abstract: An improved self controlled watering planter device of the type utilizing a porous moisture sensor, an air-tight fluid reservoir and a membranous fluid inlet port on the interior bottom of the device including concentric annular ridges and a solid circular disk for inhibiting the interference of plant roots with the fluid inlet port. The improved device further includes baffle structures to inhibit debris from fouling the bottom portion of the inlet port, an interiorally mounted moisture sensing unit and an inward draining niche surrounding the fluid reservoir fill port.

Abstract: An apparatus for chemically processing an item by submersion in a liquid bath having a means for rotating the item while it is submerged. The means for rotating the item includes a positive displacement continuous-rotation motor capable of submersion in the liquid bath jointly with the item being processed. Operation of the continuous-rotation motor is energized by a flow of pressurized fluid which also serves to exclude the processing liquid chemical from the interior of the motor.

Abstract: An improved belt driven tape cartridge including inertial flywheels in intimate contact with the recording tape along the tapes path to reduce high frequency tape flutter, and improved tape-guide members incorporating conically shaped guiding flanges, the guides being positioned adjacent the flywheels to alleviate tape edge damage.

Abstract: An apparatus for beveling the edges of glass including a base, an exterior case mounted on the base containing a pair of electrical motors, the motors respectively rotating a pair of beveling spindles which extend an adjustable distance through a pair of apertures in the top surface of the case so as to contact and bevel the glass. Mounted above the base at the back exterior of the case is a further electrical motor for directly driving two rotating wheels, a lustering wheel and a polishing wheel. The case further contains a fluid reservoir and tubes for delivering water or wetting agent to the surface of the beveling spindles and switching and electrical circuitry for controlling the three electrical motors and fluid delivery system.

Abstract: A U-Matic video tape recorder of the type which is modified so as to employ wide-band-direct circuitry for developing a modulated signal from a video signal and to divide each frame of the modulated signal into several segments for recordation upon respective tracks of a tape is further modified to include circuitry for transporting the tape at a reduced rate wherein each segment of the modulated signal is multiply reproduced and circuitry for combining one of each multiply reproduced segments of a signal developed by a demodulator of the reproduced modulated signal with a black-level video signal to develop a signal representing in slow motion the original video signal.

Abstract: A method and an apparatus for the recordation and reproduction of standard color-television signals, the apparatus including an encoder having circuitry for separating into separate signals the luminance and chrominance portions of a standard color-television signal, for heterodyning the chrominance signal from its normal frequency to a new, lower, odd multiple of the half-horizontal frequency, and for combining the luminance and heterodyne chrominance signals to develop an encoded-color signal, a conventional video recorder for recording and reproducing the encoded-color signal, and a decoder having circuitry for separating the reproduced encoded-color signal into separate reproduced luminance and reproduced chrominance signals, for heterodyning the reproduced chrominance signal back to its normal frequency and for combining the reproduced luminance and normalized chrominance signals to develop a reproduced color-television signal.

Abstract: A new variety of rose plant originating as a cross between an unnamed seed parent derived from a cross between Baccarra and Garnet and an unknown pollen parent by open pollination and characterized by its small ruffled red-pink blooms, vigorous growth and persistence.