Polishing stack for thermoplastic films or sheets
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 7, 1995
Grant Date -
N/A
app pub date -
Feb 7, 1994
filing date -
Feb 18, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a polishing stack with at least one fixed and one moveable polishing roll for polishing a plastic sheet leaving a wide extrusion die. A device is provided that preloads the frames and the bearings and acts on a roll gap adjusting device which includes a pinion gear arrangement and drive for finely adjusting the roll gap between the fixed and moveable rolls. The polishing stack in preferred form includes a center fixed roll and top and bottom adjustable rolls.
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