Eastman-kodak Company

Nathan J Turner

Christopher M Muir

Randy Eugene Armbruster

Domingo Rohde

Bradley C DeCook

William F Dassero

Eckhard Bauer

Thomas Niertit

Ruth H Parker

Thomas Koester

An automatically-adjusting tensioning mechanism for use in a roll-fed web media transport system, the tensioning mechanism adding tension to the web media, comprising a bracket assembly being adapted to freely pivot around a pivot axis, and first and second tensioning shoe having curved surfaces attached to the bracket assembly. The web media feeds through the tensioning mechanism in an S-shaped media path where the web media is wrapped around the first and second tensioning shoes. The pivot angle of the bracket assembly automatically adjusts in response to differences in a coefficient of friction between the web media and the tensioning shoes such that the tension in the web media has a reduced level of variability relative to configurations where the bracket assembly is held in a fixed position.

Automatically-adjusting web media tensioning mechanism

A printing machine for printing on a web includes a plurality of guide rollers for guiding the web through a simplex and a duplex path in the printing machine. The duplex path is adjacent and laterally shifted with respect to the simplex path. An apparatus for turning or laterally shifting the web and transfer the web from the simplex path to the duplex path includes four rollers. 90&#xb0; twists are present between rollersandand between rollersand. Rollersandare substantially parallel, and rollersandare substantially parallel. Rollersandare substantially at right angles to rollersand

Duplex web printer with turning mechanism

An apparatus for maintaining uniform tension across a width of a web includes a roller, a first arm and a second arm, a plurality of devices, and a plurality of links. The roller includes a shaft, about which the roller rotates, that defines an axis of rotation. The first arm and the second arm are coupled to opposite sides of the shaft of the roller and to a corresponding one of the plurality of devices such that each device is allowed two degrees of rotational freedom about the arm to which it is coupled. Each of the devices is pivotably coupled to a corresponding one of the plurality of links such that the roller is allowed to pivot about a first axis. Each link is pivotably coupled to a stationary frame such that the roller is allowed to pivot about a second axis.

Print media tensioning apparatus

Growing community of inventors

Rochester, NY, United States of America

Nathan J Turner