Veneer stacking system
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United States of America Patent
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Aug 25, 1992
Issued Date -
N/A
app pub date -
Feb 12, 1990
filing date -
Apr 7, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a veneer stacking system, a sensing device for sensing the incoming veneer sheets and computer determining from the information of the sensing device the stack on which the sheets are to be deposited. Knock-off shoes are positioned above the path of incoming veneer sheets. Multiple hydraulic cylinders connected into a hydraulic control system controls movement of the shoes. The multiple cylinders are simultaneously actuated by master cylinders which in turn are simultaneously actuated by a computer controlled mover piston. Air leaked into the hydraulic system is bled off by bleed orifices in the master cylinders communicating with a hydraulic fluid reservoir whereby air rises in the system up through the orifices and into the reservoir.
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