Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7552851 | Transport apparatus for tape-type media and method for regulating the transport speed The transport apparatus has a device for determining the transport speed of a tape-type medium. A linear array sensor is provided, which extends along the transport direction. Furthermore, means are provided in order to image a region of the medium onto the linear a... | 06/30/2009 |
| 7341217 | Electrostatic tension control of webs An electrostatic charging system holds a film web to a roll without significant slippage, thus allowing for proper tension control of the web even with extreme differences in tension upstream and downstream of the motorized roll. The system can electrostatically tra... | 03/11/2008 |
| 7337936 | Continuous paper transporting mechanism and printing apparatus having the same A printing apparatus having a mechanism for transporting continuous paper includes: a frictionally transporting section for frictionally transporting the continuous paper; a paper braking section provided on an upstream side of the frictionally transporting section;... | 03/04/2008 |
| 7325489 | Process for controlling torque in a calendering system A method for controlling a calendering system having a first roll and a second roll is disclosed. The first roll has a first roll torque controller and a first roll speed controller. An exemplary method comprises the steps of: (a) setting said first roll at a desire... | 02/05/2008 |
| 7230788 | System and method for tape drive control A system and method for damping the motion of the head of a tape drive is disclosed. The method includes measuring the position of the head over time with a position sensor; damping the motion of the head based on the measured position of the head over time; and tun... | 06/12/2007 |
| 7185573 | Vacuum wheel chuck A wheel chuck assembly includes a support plate having at least one aperture formed therethrough. The support plate is adapted to be mounted upon a lathe spindle. An air conveying device is mounted adjacent to the support plate and is operable to induce an air flow ... | 03/06/2007 |
| 7163173 | Method of and apparatus for winding web When an elongate film is initially wound around a core, it is wound under a low winding tension command value T1 corresponding to the length of the core. Then, after the tension is progressively increased at a predetermined rate, the elongate film is wound wh... | 01/16/2007 |
| 7131782 | Paper edge sensing apparatus and method for borderless printing A paper edge sensing apparatus for borderless printing comprises a first paper sensor mounted in connection with the carrier and the frame in the upstream of a paper convey direction of an ink jet position of the ink jet nozzles to detect sheet edges, and a controll... | 11/07/2006 |
| 7100510 | Method for registering patterns on a web A method for registering patterns on a web to provide independent scale control in both the lateral and longitudinal directions is provided. The method includes routing the web over a first roller; routing the web over a second roller and stabilizing the web; applyi... | 09/05/2006 |
| 6969206 | Tension generating mechanism for a printing apparatus A printing apparatus includes a conveyance mechanism for conveying a web to a transfer unit, and a tension generating mechanism for applying a tension to the web fed to the conveyance mechanism, wherein the tension generating mechanism includes a tension generating ... | 11/29/2005 |
| 6966474 | Web accumulator having limited torque disturbance A control arrangement decoupled two driven inputs for driven belt web accumulators using gear trains, gear trains with torque feed-forward control or gear trains with toque feed-forward control and velocity feedback control. ... | 11/22/2005 |
| 6834823 | Supply device for supplying rubber material to a cutting device Supply device for supplying rubber material (11) to a cutting device (3). In the direction away from the cutting device the supply device contains a supplying table (3) having a supplying mechanism (4), an unwinding trestle (7) con... | 12/28/2004 |
| 6776319 | Strand tension equalizing apparatus A tension device is utilized for equalizing, or at least reducing differentials in tension across strands in a web. The device utilizes an overfeed roll which rotates faster than the speed of feeding the web. Strands at the desired tension, or less, slip about the e... | 08/17/2004 |
| 6766737 | Method for controlling a circumferential register in a web-fed rotary press The circumferential register of a web passing through printing units of a web-fed rotary press is accomplished by determining an actual value of the tension in the web. An angular position or an angular velocity of a cylinder of a first print unit, with respect to a... | 07/27/2004 |
| 6637634 | Methods for calibration and automatic alignment in friction drive apparatus A friction drive apparatus includes an edge detection system for determining a lateral position of a strip material advancing in a longitudinal direction. The edge detection system includes a first sensor and a second sensor for monitoring the lateral pos... | 10/28/2003 |
| 6626343 | Method and apparatus for pinless feeding of web to a utilization device A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The ... | 09/30/2003 |
| 6575346 | Torque capstan that improves reverse oscillating lay (ROL) consistency during an optical fiber cable manufacturing process A torque capstan is provided for use in an optical fiber cable manufacturing process which enables reverse oscillating lay (ROL) length to be maintained. The torque capstan comprises a first portion having at least two pulleys rotationally mounted thereon... | 06/10/2003 |
| 6499639 | Method and apparatus for dynamically controlling a web printing press A method for dynamically controlling a driver of a nip roller in a web printing press includes controlling the speed of the driver in a tension-control mode during a phase of printing press operation and in a velocity-control mode during another phase of ... | 12/31/2002 |
| 6450383 | Method and apparatus for pinless feeding of web to a utilization device A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The ... | 09/17/2002 |
| 6433499 | Device and method for automatic tension transducer calibration An apparatus for calibrating a tension transducer for a web includes a pair of nip rollers and a motor for driving at least one of the pair of nip rollers, the motor having at least one roller output being a function of at least one of a motor torque and ... | 08/13/2002 |
| 6402405 | Method and device for page by page conveyance of a pre-printed striplike recording medium in a printer A method and device to control a paper drive mechanism of an electrographic printer or copier by friction feed. Optical markings are provided on the recording medium, and a sensor scans an area of the recording medium for the optical marking during transp... | 06/11/2002 |
| 6334564 | Infeed system of rotary press In a rotary press, a traveling amount of a paper web is controlled by an infeed system including infeed rolls which feed the paper web to a subsequent stage for an operation such as a printing process. The infeed system of the rotary press includes a trav... | 01/01/2002 |
| 6285850 | Duplex printer and method of printing to ensure desired registration of images on opposite faces of substrate web A duplex printer has drive motors for driving transfer surfaces carrying toner particle images to transfer stations at which the images are transferred to opposed faces of a substrate web. A web drive motor drives the substrate web through the transfer st... | 09/04/2001 |
| 6279807 | Method and apparatus for pinless feeding of web to a utilization device A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The ... | 08/28/2001 |
| 6276587 | Arrangement for delivering a web of material from a storage reel to a process line, and a unit included in the arrangement An arrangement for delivering a web of material from a storage reel to a process line for manufacturing absorbent disposable articles. The arrangement includes a web tension control unit for holding a predetermined value of tension in the web of material ... | 08/21/2001 |
| 6276586 | Methods for calibration and automatic alignment in friction drive apparatus A friction drive apparatus includes an edge detection system for determining a lateral position of a strip material advancing in a longitudinal direction. The edge detection system includes a first sensor and a second sensor for monitoring the lateral pos... | 08/21/2001 |
| 6273314 | Process and apparatus for storage of fiber band between operating components of spinning machines A process and an apparatus for storing of a textile material between operating components of spinning mill machines, wherein a first driving device drives an operating component which delivers the material into a storage facility and a second driving devi... | 08/14/2001 |
| 6269995 | Friction drive apparatus for strip material A friction drive apparatus for feeding strip material in a longitudinal direction includes a first friction wheel and a second friction wheel rotated by a first motor drive and a second motor drive, respectively. The friction drive apparatus also includes... | 08/07/2001 |
| 6213367 | Method of controlling the drive transporting a paper web in a printing machine A method of controlling the drive of the electric pretensioning unit of rotary printing machines having individually driven rotary printing cylinders and folders is specified, so that, in the event of changes being made to the paper grade or to the produc... | 04/10/2001 |
| 6199476 | Roll machine and process for operating the same A roll machine is provided. A plurality of rolls are disposed in a stack to define a plurality of nips therebetween adapted to treat a material web. At least two of the plurality of rolls are driven rolls. A drive control commonly controls the driven roll... | 03/13/2001 |
| 6095391 | Method and apparatus for loop stabilization with forced air A method and apparatus is presented for stabilizing a free loop of web material between two web handling devices. The present invention employs fans or other forced air sources, directed toward the inner surface of the free loop, to maintain a stable free... | 08/01/2000 |
| 6085956 | Method and apparatus for controlling tension in a web offset printing press The inertial drag of idler rollers in a web-offset press with independently driven drive rollers is compensated by successively advancing downstream rollers during speed changes. This prevents low-tension conditions on the web and subsequent web breaks. C... | 07/11/2000 |
| 6056180 | Method and apparatus for pinless feeding of web to a utilization device A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The ... | 05/02/2000 |
| 6000595 | Method and apparatus for pinless feeding of web to a utilization device A system and method for utilizing a continuous pinless web that is free of tractor pin feed holes within a utilization device that is originally adapted to feed web having tractor pin feed hole strips along its widthwise edges is provided. The utilization... | 12/14/1999 |
| 5996491 | Turn bar apparatus A turn bar apparatus is incorporated in a rotary press for reversing a web position during running thereof. The turn bar apparatus includes an upstream side turn bar, and a downstream side turn bar disposed along a web running direction. Pull rollers are ... | 12/07/1999 |
| 5992789 | Control system for unwind machine An unwind machine has three tension free loops between the paper roll that is unwinding and the utilization device that must be fed paper at a rate that varies widely. One loop is conventionally controlled, and the other loops act in sequence to accommoda... | 11/30/1999 |
| 5979732 | Method and apparatus for pinless feeding of web to a utilization device A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The ... | 11/09/1999 |
| 5967394 | Method and apparatus for pinless feeding of web to a utilization device A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The ... | 10/19/1999 |
| 5918787 | Apparatus for feeding a web of material Apparatus for feeding a web of material, in particular a web of cardboard, having at least one driven element which engages one surface of the web of material to be fed, and which cooperates with at least one bearing element acting upon the other surface ... | 07/06/1999 |
| 5915612 | Registration system for web feeding An apparatus is disclosed for controlling the motion of a machine system so as to cut individual lengths from a web having graphics on predetermined web positions and which allows the use of an inexpensive AC induction motor. An AC induction motor has an ... | 06/29/1999 |
