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
Inducement of organogenetic tolerance for pancreatic xenotransplant
Method and system to generate finite state grammars using sample phrases
Patient interface
Flow cytometer method and apparatus
Method of fabricating display device
Compound semiconductor epitaxial structure and method for fabricating the same
Image forming apparatus, control method and computer-readable medium for stopping a print job during printing by a printer
  Randomly Featured Patents
Execution of requests in a parallel database system
Combination of a plate for exposure and frame plates
Cupola with auxiliary gas generator
Method and apparatus for controlling the viscosity of glass streams
Multi-chip package
Semiconductor manufacturing apparatus
Transconductance amplifier
Metering valve stem seal
Storage registers for a processor pipeline
Optical element apparatus for two-dimensional controllable localized partition backlight module