Resources Contact Us Home
Tension controlled apparatus for feeding web material

Image Number 3 for United States Patent #4231560.

A tension controlled apparatus for feeding web material from a supply source to processing equipment of the type that exerts a pulling force on the web, the apparatus including a drive wheel and a driven wheel mounted for rotation about an axis parallel to the drive wheel and for shifting movement toward and away from the drive wheel, a web feed roller connected coaxially to the driven wheel for rotation thereby and means for guiding the web material to cause it to wrap part way around the web feed roller as it passes from the supply source to the processing equipment and exits from the web feed roller in an exiting direction having a substantial component in a direction to shift the driven wheel into driving engagement with the drive wheel in response to tension applied by the processing machine on the web of material exiting from the feed roller.

  Recently Added Patents
SIC semiconductor device and method for manufacturing the same
Semiconductor device and manufacturing method thereof
Mobile communication device
Apparatus and method for transmitting/receiving data in a communication system
Radio frequency power delivery system
Scalable encoding apparatus, scalable decoding apparatus, scalable encoding method, scalable decoding method, communication terminal apparatus, and base station apparatus
Generating agricultural information products using remote sensing
  Randomly Featured Patents
Compositions for reducing wear on ceramic surfaces
Method of monitoring CO concentrations in hydrogen feed to a PEM fuel cell
Modular evaporator and thermal energy storage system for chillers
Method for fabrication of ceramic tantalum nitride and improved structures based thereon
Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier
Process for the formation of a multi-ply and/or multilayer fiber web
Capillary cosmetic composition for washing disentangling hair containing a plant extract containing saponins
Tire tread
Rose plant named Benaros