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Show 3 OL ~PAPERMAKIN by the use of twoscreens, called chesses, which extended through the hood,or chapiter, just in fron of the revolving roll. The screen nearest the rol was made of coarsely woven metal wire, and th other of fine hair.cloth. At the base of these tw screens a hole-scupper or "dalot" was placed whic carried away the dirty water as it was throw through both the screens by the velocity of the revolving roll. Fresh water was supplied continuall to the Hollander during the washing process an the mission of the screens was to prevent any fibrous material escaping and being wasted This form of washer is shown in the Dutch engraving taken from "Groot Volkomen Moolenback, published in Amsterdam in 1734 This was th first illustration of the Hollander to have been presented in the country of its invention n 1800 there was but one paper mill in Englan still using an old stamping-mill for reducing rags t pulp. The French were the last toadopt Hollander exclusively, and until 1861 the French Governmen insisted that all pulp used in paper for the stampoffice be made by the primitive stamping-mills, assuring long fibred pulp and therefore stronge A few improvements have been made in beater of the presentday, but in general construction the are almost identical with the old Hollander show in the book of machinery of 1718 Diital image© 2004 Marriot Library, University of Uah. Al righs reserved |