Levelling head
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United States of America Patent
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-
Jun 23, 1998
Grant Date -
N/A
app pub date -
Apr 25, 1996
filing date -
Apr 26, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A leveling device with which to orient a workpiece--or tool--affixing upper part relative to a lower part connected to it, the device having at least one adjusting screw of which the shank rotatably passes through the upper part and engages a thread in the lower part. To permit economical manufacture of the device without degradation in accuracy, the invention anchors the upper part in the lower part at a specified spring loading and at a spaced apart distance from the adjusting screw.
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