Information transferring systems operating on a recording medium

摘要

Methods and apparatus for transferring information relative to a recording medium bend the medium about a first axis and move an information transfer stimulus in an arc over such bent medium about a second axis laterally offset from and extending at an angle to the first axis. These methods and apparatus impart to the bent medium a wave-shaped configuration for accommodating the mentioned arc in a perpendicular plane through the second axis. The wave-shaped configuration may be imparted to the medium with the aid of a guide or roller having a wave-shaped contour.