Measurement apparatus including a track for a measurement scale and apparatus for tensioning the scale
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United States of America Patent
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Mar 9, 2004
Grant Date -
Dec 12, 2002
app pub date -
Aug 2, 2002
filing date -
Nov 30, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is disclosed: a measurement scale suitable for use with scale reader for determining displacement; various tracks all for holding the scale and all having a channel into which the scale is magnetically attracted; and a scale tensioner which in use tensions the scale in situ by release of a preload, prior to the scale being secured to a substrate, the tensioner being removable thereafter.
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