Apparatus for limiting the movement of tenter frame rails
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United States of America Patent
Stats
-
Jan 21, 1992
Grant Date -
N/A
app pub date -
Aug 31, 1990
filing date -
Aug 31, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus is illustrated for limiting the movement of tenter frame rails in order to avoid damage, particularly to chains, resulting from excessive movement which includes a spring biased plunger valve carried by the rail on one side of a rail junction, while the other side of the junction carries a member having a predetermined surface for actuating a switch when the member moves to an extreme position where it can no longer support the plunger against the resilient force of the spring, causing a switch to be activated to deactivate the motor imparting transverse movement to the rails.
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