Patents Assigned to Ing. C. Olivetti
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Patent number: 4023662Abstract: A device for adjusting the distance of a printing head from a platen for an office machine comprises a printing head movable parallel to a platen along two guides. One of these guides is fixed to the frame of the machine; the other is transversely shiftable by a cam for correspondingly shifting the head, the cam being swung by a manually operable linkage. The device further comprises means for preventing the driving belt from excessive stresses and wear.Type: GrantFiled: October 30, 1975Date of Patent: May 17, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventor: Vincenzo Perucca
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Patent number: 4017366Abstract: A method of printing on thermographic paper according to which the heat for causing the imaging color change in the thermographic coating is generated by means of current in a portion of the coating dampened by a thin film of a conductive salt solution which is dispensed on the thermographic coating. The current is generated by a printing head having spaced electrodes in contact with the dampened portion of the coating. The conductive salt solution may be deposited on the thermographic coating in liquid film form, combined with a thermographic material to form a conductive coating for printing in the dry state, or mixed with the thermographic material in liquid form and dispensed on plain paper in a thin film in the path of the writing head.Type: GrantFiled: February 6, 1976Date of Patent: April 12, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Paul Y. Hsieh, Eugene W. Rogall
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Patent number: 4016602Abstract: A cartridge for endless magnetic tape loops including a cover containing a pair of supports substantially coplanar with the other and between which is wound a magnetic tape in lengthening coils. A third support guides a connecting coil which connects the innermost coil with the outermost coil of the loop. The third support is substantially coplanar with the pair of supports in such a way that the connecting coil is substantially coplanar with the other coils of the tape recording and/or reading device for a magnetic tape contained in a cartridge which includes at least one window through which the tape contained therein may be reached. The device includes a capstan, a pressure roller and a magnetic recording and/or reading head mounted on an activation lever. A spring element normally holds this lever against the action of a pressure spring.Type: GrantFiled: July 8, 1975Date of Patent: April 5, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Nicolo Giolitti, Michele Bovio
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Patent number: 4015245Abstract: A biprogrammable computer is provided with an operator actuable selector switch. Each position of the selector switch of the computer assigns the keyboard, the console and the display to a selected one of the two programs in progress, so that the data entered by the keyboard is automatically transferred to the memory zone allocated to the program selected at the same time the display displays messages of the selected program. If the program not selected by the selector switch must alert the operator to some abnormalities, it activates a lamp and an associated buzzer. The operator after the end of the keyboard operation, actuates the selector switch and removes the cause of the abnormality. Registers are provided for storing the point of interruption of a program being processed, as well as information for determining if the data being entered by the keyboard relates to the program selected.Type: GrantFiled: September 2, 1975Date of Patent: March 29, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Luigi Mercurio, Piercarlo Ravasio
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Patent number: 4010839Abstract: A cartridge for a carbon ribbon of an office machine, comprises a container in which are rotatable a feed spool and a take-up for the carbon ribbon. The carbon ribbon passes from the feed spool out of a first aperture and back into the container through a second aperture of the container. The take-up spool is rotatable mounted on a support which is pivoted in the container about a fixed axis. The container has at the bottom an opening arranged in correspondence of a toothed roller also rotatable in the container and adapted to receive a driving shaft of the machine for the rotation of the toothed roller. A spring biases the support of the take-up spool against the teeth of the toothed roller for holding the outermost turn of the carbon ribbon wound on the take-up spool in engagement with the toothed roller, so that for the rotation of the take-up spool by the toothed roller, the ribbon is unwound from the feed spool to the take-up spool.Type: GrantFiled: November 25, 1975Date of Patent: March 8, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Giampaolo Guerrini, Giuseppe Corna
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Patent number: 4010836Abstract: A wire printing device comprises a frame removably mounted on a carriage which can move parallely to a platen. On the frame is removably mounted a guide block of resin material which guides a plurality of printing wires individually actuatable by a plurality of electromagnets, mounted on the frame. For an easy assembly of the printing device, a terminal guide is removably mounted on the frame for guiding the printing wires in proximity of the platen. Moreover, between the terminal guide and the guide block, a lubricating pad is disposed at contact with the printing wires and an oil container, mounted on the guide block, is connected through a wick to the pad for holding it constantly impregnated.Type: GrantFiled: March 14, 1975Date of Patent: March 8, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Francesco Bernardis, Dario Bisone
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Patent number: 4009953Abstract: A fixing unit for fixing the developing powder on a copy sheet produced in a copy machine which comprises a first roller having its outer surface covered by a layer adapted to resist adhesion of the powder thereto, a second roller cooperating with the first and defining with said first roller a nip through which the copy sheet is passed by rotation of the rollers, with the face bearing the powder in contact with the surface of the first roller, and a third roller rotated in contact with the first roller carrying in its interior a plurality of selectively actuable heating units for selectively heating portions of the surface of the first roller, in accordance with the length of a copy sheet.Type: GrantFiled: October 14, 1975Date of Patent: March 1, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Martino Ravizza, Giancarlo Abate-Daga
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Patent number: 4008795Abstract: A ribbon feed mechanism for the inked ribbon of a printing machine comprises two ribbon-carrying spools rotatably supported in a removable cartridge and two sensing levers which extend through a pair of apertures in the cartridge to sense the amount of inked ribbon on the spools. The sensing elements cooperate with corresponding latches for retaining a reversal member against the action of a reversal spring which biases the reversal member from a first position to a second position. The reversal member supports two freely rotatable pinions which are moved by the reversal member, as it moves into the first and second positions, into mesh respectively with corresponding spool gears coupled to the two spools and with two gears driven by a feed element in opposite directions. The spools are therefore alternately driven first in one direction and then the other direction respectively.Type: GrantFiled: June 4, 1975Date of Patent: February 22, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Sergio Garberi, Lorenzo Bertino
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Patent number: 4000804Abstract: An arrangement for transferring a ribbon from a feed spool to a take-up spool comprises a pair of electric motors each one connected to a corresponding spool for the rotation thereof. The motor connected to the take-up spool is supplied by a constant current generator so as to wind-up said ribbon with a minimum and substantially constant torque. The motor connected to the feed spool is supplied by a constant voltage generator so as to keep said ribbon constantly taut during the transferring thereof. A changeover device alternates the function of the two spools when the ribbon is fully wound on the take-up spool.Type: GrantFiled: February 6, 1976Date of Patent: January 4, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventor: Adriano Zaltieri
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Patent number: 3999749Abstract: An automatic passbook feeding device, suitable for an accounting machine, having a pair of parallel driving rollers rotating in synchronism a corresponding pair of pressure counter-rollers, for pressing the passbook against the driving rollers, and a movable stop adapted to assume selectively a first position for blocking the path of the passbook and a second working position for moving the passbook.Type: GrantFiled: July 11, 1975Date of Patent: December 28, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Adriano Zambolin, Dario Bisone
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Patent number: 3995979Abstract: An apparatus for lubricating the internal wall of moulds for blanks comprises a corona charger for charging electrically the lubricant which is then injected into the mould. This latter is maintained at an electric potential such as to attract the lubricant and cause it to be deposited on the inside walls of the mould.Type: GrantFiled: November 1, 1974Date of Patent: December 7, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventor: Renzo Fedrigo
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Patent number: 3991875Abstract: The present invention relates to a device for driving, stopping and line-spacing cards or separate forms, in an accounting machine. A plurality of rollers, actuated by a motor, moves the cards or the separate forms for a predetermined number of printing lines. A control unit selectively activates a coupling device for connecting the motor to the rollers. A counting device is connected to the rollers by a coupling commanded by the control unit.Type: GrantFiled: November 20, 1974Date of Patent: November 16, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Adriano Zambolin, Dario Bisone
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Patent number: 3989376Abstract: An improved device for fixing in position and covering original documents on the exposure plane of a reprographic machine which comprises a cover for fixing and covering the documents and an actuating arm for the cover, both movable between open and closed positions. The actuating arm is pivoted on the frame of the machine and is coupled by elastic means to the cover. The elastic means urges the cover towards its closed position and produces pressure by the cover on the original document when the arm is in its closed position. A latch mechanism is provided for holding the arm in its closed position and is releasable for allowing the arm and the cover to move from their closed to their open positions.Type: GrantFiled: May 28, 1974Date of Patent: November 2, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Giovanni Ravera, Giorgio Siletto
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Patent number: 3989131Abstract: An electrothermic printing unit for writing dot matrix characters on a printing line of a recording medium by means of an electrothermal printing head which is continuously movable along the printing line during the printing operation and having a column of resistive printing elements therein disposed transverse to the printing line and selectively electrically heatable in timed relation with the movement of the head characterized in that a thermosensitive inking element having a support of heat permeable material covered by a coating of material transferable for the combined action of head and pressure is interposed between the head and the recording medium, pressure means being provided for pressing said printing elements against said support and said coating against said recording medium during the movement of the head.Type: GrantFiled: February 4, 1975Date of Patent: November 2, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Franco Knirsch, Lucio Montanari, Giorgio Rossi
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Patent number: 3988501Abstract: A thermosensitive record medium comprising a base sheet coated with a thermosensitive mixture resulting by mixing together a crystal violet lactone and a phenolic compound in a binding and dispersing agent comprising at least 5% of nonionic cellulose ether. The use of this binder improves the stability of the mixture avoiding any unusual color reaction.Type: GrantFiled: August 22, 1974Date of Patent: October 26, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Franco Knirsch, Dino Lavagna
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Patent number: 3987420Abstract: Apparatus is provided for debugging a utility program without material increase in the memory capacity required. Such apparatus performs the debugging functions by using only the input-output devices as the keyboard, the console, the display, the M.C. reader which normally equip the computer. Actuation of a correction key activates the debugging program and interrupts operation of the utility program. The debugging program may be stored in a reserved portion of a ROM, or transferred into a predetermined storage area from magnetic card storage. This area is predetermined not to hold information significant to resumption of the utility program under test. A search is then made of the utility program, e.g., by addresses of the individual instructions, for the erroneous instruction. Upon discovery thereof, a correct instruction is keyed in directly from the keyboard to replace the erroneous instruction.The debugging program records this correct instruction at the approriate addressed location in memory.Type: GrantFiled: January 12, 1976Date of Patent: October 19, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventor: Guido Badagnani
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Patent number: 3987350Abstract: Numerical control apparatus for a lathe which reads from an input medium data specifying the transverse and axial position of the cutting edge of a lathe tool with respect to the axis of the workpiece being machined, the cutting rate for the tool, and the rate of advance of the tool. The apparatus includes processing means responsive to the data for generating a continuous transverse position datum for the tool and computing means controlled by the cutting rate datum and the continuous transverse position datum for controlling the rotational speed of the mandrel of the lathe.Type: GrantFiled: June 6, 1974Date of Patent: October 19, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Piero Pomella, Luciano Lauro
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Patent number: 3983985Abstract: A typing device comprises a character-bearing disc having a central part for being fixed on a selector shaft and a peripheral rim with a plurality of selectable flexible laminae. Each lamina carries a particular character and striking means flexes the selected lamina to strike against a typing point of a sheet carrying platen for typing. A positioning element, for angular positioning the characters with respect to the typing point, comprises a recess cooperating with a wedge-shaped profile of each one of the selected laminae when the character strikes on said platen. The laminae carry alphabetic and numerical characters and a gap on periphery of the disc enables the last typed characters of a typing line to be seen and read. Further a hooked element cooperates with an elastic means of a flange integral with the selector shaft to removably fix the character bearing disc to the selector shaft.Type: GrantFiled: May 31, 1974Date of Patent: October 5, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventors: Giampaolo Guerrini, Dario Bisone
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Patent number: 3980991Abstract: An apparatus for controlling jumps in microprograms in a microprogrammable electronic computer. The apparatus comprises a plurality of bistable circuits. Selected words are transferrable into the bistable circuits in response to the execution of microprograms by the computer and at least one bistable circuit can be set to a state determined by whether a logical condition specified by a microinstruction is or is not met. In response to the state of a selected one of the bistable circuits, a jump in a microprogram may alternatively be or not be effected. The jump is dependent upon the state of the selected bistable circuit and independent of whether this state has been established by a transferred selected word or as a result of a logical condition.Type: GrantFiled: November 29, 1974Date of Patent: September 14, 1976Assignee: Ing. C. Olivetti & C., S.p.A.Inventor: Luigi Mercurio
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Patent number: D243461Type: GrantFiled: September 24, 1975Date of Patent: February 22, 1977Assignee: Ing. C. Olivetti & C., S.p.A.Inventor: Mario Bellini