Device for making samples of paper, comprises a receptacle above a chamber, separated by a filter, where the chamber has a controllable piston for varying the chamber volume when filled with water

摘要

A device for making controlled samples of paper from a fiber suspension, comprises a receptacle above a chamber, separated by a filter. The chamber has a water inlet and a controllable piston, for varying the chamber volume when it is filled with water. An Independent claim is included for the formation of a controlled sample of paper using the device, comprises filling the chamber with water to submerge the filter, placing a fiber suspension uniformly across the surface of the filter and increasing the volume of the chamber using a preset sequence.