Resources Contact Us Home
Directional tail transfer threading apparatus

Image Number 7 for United States Patent #6073825.

A directional tail transfer apparatus includes a tray that defines a longitudinal path line extending along the tray overwhich a paper tail to be threaded travels. The longitudinal path line of the tray is positioned adjacent a first section in a papermaking machine where the paper tail exits. The longitudinal path line is aligned with the initial path of movement of the paper tail. The tray has with one or more creases, which extend across the tray width and bisect the longitudinal path line to effect a natural change in direction of the longitudinal path line through the tray. At least one of the creases bisects the longitudinal path line at predetermined angles other than 90 degrees to provide a lateral displacement in the portion of the tray that follows this crease. This one crease allows the paper tail to fold along its width on an angle that is not perpendicular to the natural downstream path of travel of paper tail. As a result the paper tail changes direction to follow the tray along the longitudinal path line. The fold angle of the creases and lengths of the tray portions pre-selected to accurately deliver the paper tail to a threading nip. The tray further includes an air or gaseous flow source for directing an air-cushioning stream over the tray to pull or draw the paper tail over and along the tray surfaces. The tray is operable at all angles of installation, including an inverted position.

  Recently Added Patents
Low power voltage controlled oscillator (VCO)
Methods and apparatus to perform time zone determination by a mobile station
Voltage detecting device for LED driver
Method of applying a spherical correction to map data for rendering direction-of-travel paths on a wireless communications device
Opioid-ketamine and norketamine codrug combinations for pain management
Nickel-cobalt-manganese multi-element lithium ion battery cathode material with dopants and its methods of preparation
Method for production of fermentable sugars from biomass
  Randomly Featured Patents
Heat dissipation semiconductor package
Process for preparing a carbon fiber reinforced composite article which utilizes a polyimide matrix
Torsional vibration insulator
Paper product
Nanoparticles for protein drug delivery
Releasable and interchangeable connections for golf club heads and shafts
Method and apparatus of uniform nozzle liquid application by way of vehicle
Global query normalization to improve XML index based rewrites for path subsetted index
Visual orientation device for pedestrians
Toluene disproportionation process