Importance

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Abstract

Microcreping apparatus has an assembly of superposed sheet members which are pressed by presser means against a surface of a material being treated to compress the material against the surface of a drive roll preliminary to engagement of the material with a retarding means. The sheet member assembly is supported as a cantilever by holder means to which at least the primary and outer sheet members of the assembly are connected by a plurality of pins on the holder means received in slots in the connected superposed sheet members spaced inwardly across the path of travel of the material adjacent the rearward edge of the sheet members. The slots extend transversely of the direction of travel of the material and have sufficient clearance from the pins to permit movement thereof relative to the pins corresponding to local expansion or contraction of the respective sheet members under heating and cooling respectively.

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First Claim