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
Tandem electric machine arrangement
Method and apparatus for sharing virtual workspaces
Developing device
Catalytic pyrolysis using UZM-44 aluminosilicate zeolite
Multiple-frequency inversion method and control apparatus for internal combustion engine driven generator
Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
Antenna device and wireless communication apparatus
  Randomly Featured Patents
Cooling an engine control unit
Suspension bracket
Securely establishing presence on telecommunication devices
Anti-rotational system
Multi-cornered reversible cutting-plate
Topping for frozen desserts and method of manufacture
Bar code label printer and bar code label issuing method
Antibacterial 1-(4-mono- and di-halomethylsulphonylphenyl)-2-acylamino-3-fluoroproponals and preparation thereof
Electric vehicle
Cassette reading processing device, cassette reading processing method and cassette