Method and an apparatus for providing a tapered edge on a sheet comprising a fibrous material
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United States of America Patent
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Jun 12, 2018
Issued Date -
Dec 31, 2015
app pub date -
Jun 20, 2013
filing date -
Jun 25, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
The invention provides a method of providing a tapered edge on a sheet comprising a fibrous material, comprising moving the sheet while carrying out the following steps: —moving the sheet past a freezing device, which sheet is provided with a substance embedding the fibrous material, at least at a first edge of the sheet, which substance is in a non-solid state at room temperature, in particular at 20 degrees Celsius, and cooling the first edge using the freezing device, so that the substance at the first edge becomes solid, —moving the sheet past a machining device while the substance is solid from the cooling using the freezing device, and —machining, during the step of moving the sheet past a machining device, the first edge with the machining device to provide a first tapered edge.
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