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
Side portion of a circular saw blade
Processes for producing polyunsaturated fatty acids in transgenic organisms
Method and system for detecting data modification within computing device
Bessel beam plane illumination microscope
Automatically selecting a paper with increased dimensions than originally desired for printing and adding advertisement content to the increased dimensional area of the paper
Clothing fastener accessory
Architectural panel with bamboo rings light density embossed surface
  Randomly Featured Patents
Lacquer bullet gun Gas entry valve
Ganged power circuit switches for on-board electrical system in motor vehicles
Super-symmetric multiplier
Greek key design barzebo with overhang
Method and apparatus for monitoring states of consciousness, drowsiness, distress, and performance
Truss assembly and connector for use with trusses
Method and apparatus for the combustion of solid fuel
Double-sided connector capable of easily and accurately positioning a connection member
Semiconductor vertical MOSFET inverter circuit
Optical modulation apparatus, method for controlling optical modulation apparatus