Resources Contact Us Home
Press-feed units

Image Number 3 for United States Patent #4223821.

A press-feed unit is operative to feed a length of stock material to a press. The unit comprises a body for fixing adjacent the press and a transport section reciprocable relative to the body by a pneumatic piston and cylinder assembly, the stock being clamped to the transport section during forward feed strokes of the latter. The unit further comprises a control valve, and a transport feed valve which is controlled by a pilot pressure signal from the control valve and operable to feed the transport cylinder. A pilot signal connection is provided which can be blanked off to enable the unit to operate independently, or connected through a pilot pressure pipe to a basically similar unit to provide a duplex arrangement of two units, one of which is directly controlled in dependence on press ram position and provides a pilot signal through said pipe to operate the transport feed valve of the other unit.

  Recently Added Patents
Apparatus and method for efficient transmission of acknowledgements
System, device and method for transrating file based assets
Fuser member
Advertising system and method
Data processing system, data processing method, and image forming apparatus
Cover opening and closing unit and image forming apparatus including the same
  Randomly Featured Patents
Glass-ceramic discs for use in pigments
Purifier and garbage disposer
Antibacterial, antifouling paint for construction materials and construction materials coated therewith
Emergency locking retractor for a seat belt assembly
Shallow SIMOX processing method using molecular ion implantation
Spot light fixture with beam adjustment
Easy-to-wear shoe
System for protecting goods during transport
High performance tire with tread band having an anisotropic underlayer stable with temperature variation
Solid titanium catalyst component for olefin polymerization olefin polymerization catalyst prepolymerized polyolefin-containing catalyst and method of olefin polymerization