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Home Exercise Devices2 Angular-linear-sheet-transports

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 Angular-linear sheet transports

Details
Inventors: Stefansson, Rafn; McManaman, Raymond M.;
Assignee: Bell & Howell Company (Chicago, IL)
Primary Examiner: Schacher; Richard A.
Assistant Examiner:
Attorney, Agent or Firm: Benoit Law Corporation

Methods and apparatus for transporting a sheet first toward and then along a registration edge provide a support for the sheet having a sheet support surface adjacent the registration edge and a first drive wheel rotatable about a first axis for driving the sheet on the support surface. A second drive wheel rotatable about a second axis extending at right angles to the support surface is provided at the first drive wheel. Such first wheel is initially positioned at an angle to the registration edge and is rotated with the second wheel through a third wheel about the first axis, with the sheet being brought into peripheral engagement with the first drive wheel to transport the sheet on its support surface to the registration edge. The third wheel with the first wheel is then swiveled about the second axis and about the second wheel, toward parallel relationship with the registration edge. The swiveled first wheel is then further rotated with the second wheel through the third wheel about the first axis to transport the sheet along the registration edge. In practice, the third wheel with the first wheel may be laterally moved relative to the second wheel equidistantly about the second axis to swing the first wheel toward parallel relationship with the registration edge.

DETAILED DESCRIPTION It is a general object of this invention to overcome the disadvantages and meet the needs expressed or implicit in the above disclosure statement or in other parts hereof.
It is a germane object of this invention to provide improved sheet aligning methods and apparatus.
It is a related object of this invention to provide improved sheet transporting methods and apparatus.
It is also an object of this invention to provide improved sheet registration systems.
Other objects of the invention will become apparent in the further course of this disclosure.
The subject invention resides in methods and apparatus for transporting a sheet first toward and then along a registration edge.
According to a first aspect thereof, the invention provides a first drive wheel rotatable about an angularly movable first axis, and a second drive wheel rotatable about a second axis intersecting the first axis at an angle.
The first wheel is provided laterally with a circular driven part extending about the first axis in a tangential plane of the second wheel.
The first wheel is positioned at an angle to the registration edge and is rotated with the second wheel through the driven part about the first axis.
The sheet to be transported is brought into peripheral engagement with the first drive wheel, in order to transport such sheet to the registration edge.
The subject aspect of the invention then laterally moves the circular driven part with the first wheel relative to the second wheel equidistantly about the second axis to swing the first wheel toward parallel relationship with the registration edge.
The swung first wheel is further rotated with the second wheel through the driven part about the first axis to transport the sheet along the registration edge.
In practice, a support for the sheet having a sheet support surface adjacent the registration edge may be provided.
The first drive wheel is rotatable about a first axis for driving the sheet on the support surface.
A second drive wheel is provided at the first drive wheel and is rotatable about a second axis extending at right angles to the support surface



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