Process for producing improved rail
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United States of America Patent
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Sep 10, 2002
Grant Date -
Aug 8, 2002
app pub date -
Feb 2, 2001
filing date -
Feb 2, 2001
priority date (Note) -
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Abstract
A process for creating a curved rail for use by a trolley by providing a rail having a first side, a second side, a third side, a first edge located between said first side and said second side, and a second edge located between said second side and said third side. The process comprises pinching the first edge and second edge with sufficient force to provide a substantially constant curvature across a majority of said second side. The pinching is not only inexpensive, but also hardens the surface of the rail.
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