Abstract: Disclosed is a film composition for carbon paper and other uses wherein dispersion grade polyvinyl chloride resin is mixed with glycerin and other water soluble plasticizers and extended with water. Substitute plasticizers are ethylene glycol, low molecular weight polyglycols including di-ethylene glycol and tri-ethylene glycol, and polyether alcohols.

Abstract: Disclosed is a printing press of the rotary offset or rotogravure web feed type having an arbour mounted feed roll from which paper to be printed is drawn. The press is equipped with a constant inventory follower of the feed roll such that at any time the inventory of the remaining paper stock can be taken.

Abstract: Disclosed is a multipart business form or manifold having a strippable label with pressure sensitive adhesive which may be removed from the form leaving a copy beneath exposed to view. Also disclosed is the method and apparatus for producing the form.

Abstract: A push-button switch including a keytop plunger, a base structure for retaining and guiding the keytop plunger, a biasing contact member, and flexible wire contacts. The biasing contact member is a leaf spring mounted in the base structure and actuated into a bowed position by depression of the keytop plunger. The flexible wire contacts are also mounted in the base structure and are engaged by the leaf spring when it is bowed. The complete structure is mounted on a printed circuit board with the leaf spring and wire contacts connected to their respective contact leads on the PC board.

Abstract: A push-button switch including a keytop plunger, a base structure for retaining and guiding the key top plunger, and a pair of biasing contact members. The biasing contact members are a pair of opposing column springs mounted in the base structure and are positioned to be bowed into engagement by the depression of the keytop plunger. Specifically, the column leaf spring members are mounted opposite each other to form mirror images. The complete structure is mounted on a printed circuit board with the leaf spring members connected to respective contact leads on the PC board.

Abstract: The panel includes a base plate, a face plate, and a slotted insulating plate therebetween, all three parts being sealed together to form a gas-tight, gas-filled envelope. Strip-like cathode electrodes are provided on the base plate, and an array of alternating display and scan anodes are provided on the face plate overlaying the cathodes to define, with the slotted plate, alternating scan and display cathodes. The arrangement provides rows and columns of scan cells and display cells. The scan cathodes and scan cells are not viewed and serve to supply excited particles to the display cells, and the rows and columns of display cells comprise a dot matrix which is used to display messages. The cathode and anode connections are specially formed so that all appear at the lower edge of the panel, at which external circuitry can be connected thereto to permit individual panels to be butted together to form a large wallboard display.

Abstract: The system includes at least two character generators, one for U.S. alphanumeric symbols, and the other for systems which use a majority of U.S. symbols, but each of which has a group of unique characters, also. A logic circuit steers the incoming data signals to one character generator or the other.

Abstract: A sheet separation apparatus for separating one sheet-piece from a stack of sheets by a suction nozzle, characterized in that a vibration nozzle is provided in close proximity to the suction nozzle which sucks and exhausts air in turns at high speed from and to the stacked sheets to such an extent that said suction nozzle is not prevented by said vibration nozzle from sucking the uppermost sheet-piece in order to vibrate said sheet-piece.

Abstract: A folded retro-reflective optical scanner using common major optics for both scanning and reading and achieving a long scan line (8.25 inches) with a short throw distance and little bow. Astigmatic effects in the reading beam are minimized by utilizing only the center portion of the return beam for reading.

Abstract: A display device comprising a panel structure including a plurality of gas-filled cells and including, within the body of the panel, gas communication channels extending between selected cells to provide a selective flow of excited gaseous particles from certain cells to others to prime the receiving cells and thereby control the transfer of glow between the cells.

Abstract: A motor drive system is described for driving a stepping motor in accordance with the generation of motion-command-pulses. The drive system includes a timing disc coupled to the motor to produce a feedback pulse for each stepped movement thereof, a timer for measuring a predetermined time interval, means for starting the timer with each generation of a feedback pulse, and means effective upon the generation of a feedback pulse or the run-out of the predetermined time interval, whichever occurs later, for generating a motion-command-pulse and for restarting the timer. The motor thus rotates one increment for each feedback pulse, but its speed is regulated to one in which the time of each increment of movement does not exceed the predetermined time interval of the timer.

Abstract: Described is a high-speed/low-speed interface for data processing systems which interface may be implemented on a single LSI MOS chip having a first portion fabricated to include high-speed circuitry to be clocked by a high-speed clock, a second portion fabricated to include low-speed circuitry to be clocked by a low-speed clock, and a third portion formed to include interface circuitry for transferring the data between the other two portions. The described embodiment relates to a two-phase clock system in which the high-speed clocks have a fixed phase relationship to the low-speed clocks and have a pulse repetition frequency which is a whole number multiple of the low-speed clocks. The described single chip may be adapted for one-speed applications by merely connecting together the corresponding phases of the high-speed and low-speed clock input terminals.

Abstract: The panel driven by the circuit of the invention comprises essentially two display devices in a single gas-filled envelope. The panel comprises a left-hand portion including an array of rows and columns of scanning or priming cells and an array of rows and columns of display cells which are vertically aligned with each other, with each scanning cell communicating with a display cell. Electrode arrays are provided for operating the left-hand scanning cells and display cells in scanning fashion, column-by-column. The right-hand portion of the panel includes an identical arrangement of scanning cells, display cells, and electrode arrays therefor.A panel of this type is particularly suitable for displaying 80 characters or so, and, in order to achieve favorable brightness in all of the cells of the panel, the two portions of the panel are operated simultaneously.

Abstract: The display panel is filled with an ionizable gas and includes a base plate on which a plurality of groups of cathodes and their conductors are formed, each group of cathodes being operable to display a character. The panel also includes a face plate, spaced from the base plate, and carrying transparent conductive anodes, each associated with one group of cathodes. The base plate and face plate are hermetically sealed together by a frame of a sealing material formed from a thin layer of powdered glass in a removable carrier.The panel is made by assembling all of the parts and sealing the envelope but including a wire in the frame of sealing material. After the seal has been formed, the wire is removed to leave a small hole providing gas communication with the interior of the panel. The panel is then placed in an oven and evacuated, baked out, and filled with the desired gas filling through the hole, after which the hole is hermetically sealed.

Abstract: A display panel includes a series of linear conductive elements, operable as glow cathodes, and separated into first and second portions by means of an insulating barrier extending along and overlaying the series of cathodes. A first anode is disposed adjacent to the series of cathodes and is operable with the first portions thereof in a scanning operation wherein each such portion of each cathode is energized in turn. A second anode is disposed in operative relation with the second portions of the cathodes and is adapted to be energized at selected times during the operation of the first portions of the cathodes to cause glow to spread from glowing first portions to the associated selected second portions.

Abstract: An extendable memory organization capable of last-in-first-out or first-in-first-out operation comprising a stack of charge coupled device shift registers arranged such that each register shifts data in a direction opposite to that of its adjoining neighbors in the stack. Gating interconnecting the registers is selectively operable to enable read and write operations at either of the stack and up or down shifting of data in the stack. In particular, the gating and control structure permits refreshing the memory by alternately shifting each stored data word up and down between two storage positions in the stack. In one embodiment, gating and control is implemented in a sandwich structure incorporated into the charge coupled shift register channel.

Abstract: The display panel includes a base plate which carries a plurality of pairs of scanning cathodes and display cathodes, oriented in columns, and insulating spacers which, in each pair, separate the scanning and display cathodes into operative pairs, with the pairs being arrayed in rows and columns. The panel also includes a face plate which carries a plurality of anode strips, oriented in rows, each strip overlaying and having a portion in operative relation with a row of scanning and display cathode pairs. In each pair of cathodes, only the display cathode is visible to a viewer. The face plate and base plate are sealed together to form an envelope which is filled with a gas suitable for supporting cathode glow.In one mode of operation of the panel, each column of scanning cathodes is energized at a relatively low level, and then selected display cathodes in the associated column are energized at viewing level.

Abstract: The display panel comprises a gas-filled envelope containing a series of fine, closely-spaced cathode lines connected in groups so that they can be energized sequentially and individually. The panel also includes an anode film supported on the face plate and aligned with and in operative relation with the series of cathode lines. The anode and cathodes are closely spaced and the panel contains an ionizable gas at relatively high pressure.

Abstract: A facsimile receiver reproduces documents at remote locations automatically while unattended. The receiver includes a telephone coupler for receiving data over a telephone line, a scan converter, a single-stylus scanner, and automatic paper feed, extraction and stacking mechanisms so that a large number of documents may be reproduced and stacked in sequence in the absence of an operator.

Abstract: An electrostatic dot matrix printer includes a print head utilizing a self-scanning ion charge transfer system to reduce the number of dot drivers and the operating potential required for electrostatic printing. In the print head, ionization is transferred from a set of scanning anodes to a set of apertured cathodes in a cyclical aperture-by-aperture fashion. In synchronism with the cylical transfer a selected pattern of ionization is transferred from the apertured cathodes, to a set of printing anodes. The selected pattern of ionization is further transferred to a portion of electrostatic paper by a planar electrode, thereby depositing a selectively determined charge pattern on the electrostatic paper.