Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Determining system for localization methods combination
Image forming apparatus, control method of image forming apparatus, and storage medium
Radio communication devices, information providers, methods for controlling a radio communication device and methods for controlling an information provider
Stand for food service
System or method to assist and automate an information security classification and marking process for government and non-government organizations for information of an electronic document
Mixed reactant flow-by fuel cell
MOS resistor apparatus and methods
  Randomly Featured Patents
Mounting apparatus for PCI card bracket
Device and method for triggering an inductor
Safety base
Optical reflecting device
LED linear light source and reading apparatus
Cyclin-dependent kinase inhibitors as plant growth regulators
Emergency report device
Propulsion unit
Method of playing a chess game
Circuit for automatically deriving and measuring relative voltages associated with impedance components of a biological object