Resources Contact Us Home
Method for guiding a moving web of material

Image Number 2 for United States Patent #4848632.

The invention relates to a method of guiding a web of paper or foil material in a web-guiding device, such web having print marks applied to it at least over stretches of the web, as well as to such a web-guiding device with a correcting device, the latter being adjustable when the center of the web runs off course and with a controlling system connected to an edge-sensing system, whereby the position of the print marks relative to an imaginary guide line is controllable over stretches of the web carrying print marks, and additional correction relating to the latter can be made, if required. According to the invention, print marks signals are produced by means of a print mark sensor and linked with the correction signals of the edge-sensing system, with priority of the print mark signals.

  Recently Added Patents
Field of view matching in a visual prosthesis
Base station synchronization for a single frequency network
Radio communication system, transmission apparatus, reception apparatus, and radio communication method in radio communication
Voltage detecting device for LED driver
Digital signal processing apparatus, liquid crystal display apparatus, digital signal processing method and computer program
Profiled rail for advertising/display units
  Randomly Featured Patents
Gas flow panels integrated with solid oxide fuel cell stacks
Digital multimeter having remote display with automatic communication binding
Process for sterilizing tub-shaped containers
Coumarin dyes and side-chain coumarin dye-substituted polymers which exhibit nonlinear optical properties
Process for forming dust control mat with non-cleated borders
Verbena plant named `Salmena`
Process of producing ink-oozing plate for a stamp
Submarine with keel wing for effectively countering tendency to snap roll in high speed turns while fully submerged
Twist drill having a sintered cemented carbide body, and like tools, and use thereof
Method for forming a TFT in a liquid crystal display