Abstract: A calculator apparatus is provided for computing minimum principal amounts for deposit into demand (passbook) accounts and into term (certificate-of-deposit) accounts paying interest at differing rates. The computed minimum principal amounts not only satisfy the minimum deposit requirements of the term accounts but, when deposited, provide both maximum interest earnings and payments from principal, without interest penalty ordinarily associated with early withdrawals. The apparatus comprises a keyboard, a read-write memory, a logic unit, a printer, and a display unit. The logic unit includes an arithmetic unit having a plurality of data storage registers and a read-only-memory with a stored program. The apparatus computes the minimum principal amounts in accordance with the stored program and in response to entered data.

Abstract: An apparatus and method are provided for measuring the flow rate of liquid developer in a diazotype copy machine. The liquid developer is supplied from a supply source to a flowmeter provided with a metering device for dispensing the liquid developer from the flowmeter to a reservoir mounted on the flowmeter. A valve is associated with the reservoir and is actuable between a closed condition for retaining the liquid developer in the reservoir and an open condition for draining the liquid developer from the reservoir. An indicator is provided on the reservoir for measuring the flow rate, subsequent to actuation of the valve from the open to the closed condition, and provides an indication of the quantity of liquid developer received by the reservoir relative to a predetermined time period.

Abstract: An enclosure system includes a light-tight enclosure and a means for guiding the direction of movement of phototypesetting paper to and from the enclosure. The enclosure is capable of storing a roll of phototypesetting paper, of dispensing paper from said roll, and of returning paper onto said roll without folding or otherwise buckling the paper. The system obviates the need for a separate "take-up" enclosure and eliminates the problem of degraded print quality typically associated with characters printed at or near a fold. The enclosure comprises a container with a pivotally mounted spring-loaded lid with a gasket thereon, and a shaft disposed in the container for storing a roll of paper of selected width.

Abstract: Apparatus for applying toner to a tape which has toner-attracting images thereon, including a chamber containing toner, a chamber inlet located below the top of the toner, a chamber outlet above the top of the toner, and a tape guide which is convex along the tape path which leads through the toner to minimize toner pickup on the rear face of the tape. A vacuum is maintained at the top of the chamber to create an inflow of air at the tape outlet, to sweep back loose toner.

Abstract: A heterodyne phase lock system is disclosed having a plurality of oscillator circuits, a similar plurality of heterodyne (mixer-filter) circuits representing an input circuit, and a similar plurality of heterodyne circuits representing a control circuit, at least one of the oscillator circuits being a voltage controlled oscillator (VCO) circuit. The heterodyne circuits of the input circuit are cascaded, i.e., linked each to the other, successively, and the heterodyne circuits of the control circuit are likewise cascaded. Each oscillator is linked to a pair of heterodyne circuits, i.e., to one heterodyne circuit in the input circuit and to one heterodyne circuit in the control circuit, and applies a common output signal to said pair of heterodyne circuits.

Abstract: An encoding circuit provides an improved interface code of the CMI (Code Mark Inversion) type for transferring binary information between different points within terminal stations for digital communication, such as telephone exchange stations. Encoded output signals, in the CMI format or code, are produced with respect to a clock related signal in a manner such that each positive or negative transition of the encoded output signals occur at the end or at the beginning of a data bit period of the output signals, irrespective of whether the binary value of the input signals to be encoded is 0 or 1. Signal trailing edges, which are to be used for clock recovery by a subsequent decoder, are triggered by clock pulses, and are not derived from different signal channels of the encoding circuitry which, typically, would have made the relative phasing of the signals in the channels critical.

Abstract: A keyboard entry device with video display for multiple language use. A language selector establishes the language mode of the machine, and the entire keyboard font is displayed on the video screen in the relationship of the keys on the keyboard. Display is either at operator request or machine controlled intervals and may be displayed on only part of the screen or the text being composed may be temporarily removed from the screen and the entire screen used to display the characters in a key related position. Thus, the operator has the capability of locating keys while learning the new keyboard relationship, or refreshing memory for reassurance.

Abstract: A head for magnetizing a broad magnetic tape or the like to form magnetic images representing lines of high quality characters or other images, including a large number of closely-spaced recorder elements, such as two thousand spaced a few thousandths inches apart, the elements having parallel strip portions with recording locations therealong. The elements are arranged in groups, with the elements in one group having a common enlarged interconnected region on one side of the recording locations and with each element in the group having a separate enlarged terminal on the other side of the line of recording locations. The terminals are arranged in a staggered fashion, so that the elements located progressively closer to one end of the group have terminals located progressively further from the line of recording locations.

Abstract: Apparatus for printing images on paper or other print medium by transferring toner on a magnetic tape onto the paper, using a voltage pulse applied between electrodes located respectively behind the tape and behind the paper. The electrode behind the tape is narrower than the tape, so that the opposite edge portions of the tape serve as insulators that prevent the formation of electric arcs between the electrodes. The voltage is applied in the form of a high voltage pulse on the order of 1500 volts lasting on the order of one millisecond, to transfer toner, and is followed by a sustained voltage on the order of 150 volts for preventing the toner particles from shifting position on the paper.

Abstract: The disclosure is a two-solution tray, each a substantial duplicate of the other, and each illustrating the principle of a chicken feeder supply, an overflow control that doubles as a drain cock and a sealed system drain container for ecologically safe disposal of spent chemicals.

Abstract: A controller minimizes periodic torque or force perturbations in an inductor-type synchronous motor drive by supplying current waveforms to each motor phase that contain a fundamental frequency component and selected harmonic components. The harmonic components in the phase currents heterodyne with the periodic permanent magnet flux fundamental frequency to create periodic torques or forces which subtract from the unwanted torques or forces perturbing the moving portion of the motor. The controller, which includes an interpolator, a memory, and a converter, provides for smooth incremental movement of a member such as a plot head, at substantially constant velocity, by applying selected continuous periodic waveform signals as phase currents to the windings of inductor-type synchronous motors.

Abstract: A series of chelated diketones in which the chelated atom is aluminum can be used as acceptor type sensitizers and plasticizers for polymeric photoconductors of the donor type used in electrophotography.

Abstract: A developer apparatus is provided for developing exposed diazotype copy sheets comprising an applicator roller, means for supplying liquid developer to the applicator roller, a metering blade for wiping excessive liquid from the applicator roller and a pressure blade for pressing a copy sheet against the surface of the applicator roller to transfer liquid from the applicator roller to the copy sheet to develop an image thereon. The metering and pressure blades are arranged for sliding movement between an inoperative position ineffective to develop the copy sheet and an operative position in pressure engagement with the applicator roller for developing the copy sheet. Cam and linkage control means is provided for sequentially moving the blades between the inoperative and operative positions under control of a manually operable actuating means.

Abstract: A processor for developing the encoded output medium of a business machine, wherein the processing rate is greater than the encoding production rate but must proceed uninterrupted once started. The medium, usually a web of paper or other film, is projected into the processor along a guided path to a set of drive rollers. When the web is firmly grasped by the drive rollers, the drive motion is caused to cease. The web continues to be delivered, however. The guided path is established by movable walls which will allow the incoming web to fan-fold by pushing the walls aside. The drive rollers are reactivated and the web separated from the source in a closely spaced time interval, so that the portion captured in the processor may then proceed through to a finished condition uninterrupted.

Abstract: A lithographic ink and moisture control system as provided for maintaining copy quality over a wide range of operating and environmental conditions without special operator assistance. The control system, among other things, adjusts the ink and moisture feed rates to compensate for predicted high moisture conditions which occur at several short copy runs, wherein significant moisture is introduced with each new master.

Abstract: A microfiche carrier is provided comprising a carrier of transparent sheet material having a strip of pressure sensitive adhesive thereon for securing a microfiche to one face of the carrier. The microfiche carrier is adapted to be stacked with other microfiche carriers to form a deck, and the deck is placed into a magazine from which selected microfiche may be partially withdrawn for viewing a particular frame or frames of the microfiche. The microfiche carrier also includes detent means for releasably retaining the microfiche carrier in the magazine, coding means for retrieval of a selected microfiche carrier from the magazine and ramp means to prevent edge interference with adjacent carriers and microfiche in the magazine when a selected microfiche carrier is retrieved from or returned to the magazine.

Abstract: A lithographic ink and moisture control system is provided for maintaining copy quality over a wide range of operating and environmental conditions without special operator assistance. The control system, among other things, adjusts the ink and moisture feed rates upon machine start up to compensate for moisture evaporated from the system during shutdown.

Abstract: Apparatus for printing images on paper or other print medium, including a recording head which records magnetic images on a record tape, means for applying magnetically-attracted toner to the images, transports which hold the record tape and paper a small distance apart to leave an air gap of about 4 thousandths inch between them, a pair of electrodes located so that the toner on the record tape and the paper are sandwiched between the electrodes, and a high voltage source which applies a brief pulse of high voltage of a duration on the order of one millisecond between the electrodes, to form an electric field that propels the toner particles across the air gap from the record tape to the paper.

Abstract: A secure property device utilizing radiant energy reflectors applied to a magnetic data member is provided in which the diffusivity of reflections from the reflectors is enhanced by means of a polymeric diffuser which is chemically and optically compatible with the reflectors and with the magnetic data member to which it is applied.

Abstract: A cap assembly is provided for use with a container for storing and supplying aqueous ammonia to a diazo type copying machine. The cap assembly comprises a closure member mounted on the container and a key device associated with free ends of an ammonia feed tube and a drain tube connecting the container to a developer system of the copying machine. The closure member includes a feed outlet to permit ammonia flow from the container to the feed tube and a drain outlet to permit ammonia flow from the drain tube to the container. The closure member also includes a seal adapted for selective actuation by the key device between a first position for closing the feed and the drain outlets to prevent ammonia flow and a second position for opening the outlets to permit ammonia flow.