The new international encyclopaedia . covered with parallel wires,with a cross wire at intervals. Water marksare impressed in the paper by affixing the re-quired design on the dandy roll. A false watermark is sometimes made after the paper ispartly dried by passing between rolls engravedwith a design. C. Couch Kolls.—At the end of the wire (thatis, where it turns down over a roll to return tothe starting point) are the couch rolls, coveredwith felt, through which the wire passes bc-aringthe web of paper. These rolls press the waterout still more, and consolidate the fibre, givingit strength to
The new international encyclopaedia . covered with parallel wires,with a cross wire at intervals. Water marksare impressed in the paper by affixing the re-quired design on the dandy roll. A false watermark is sometimes made after the paper ispartly dried by passing between rolls engravedwith a design. C. Couch Kolls.—At the end of the wire (thatis, where it turns down over a roll to return tothe starting point) are the couch rolls, coveredwith felt, through which the wire passes bc-aringthe web of paper. These rolls press the waterout still more, and consolidate the fibre, givingit strength to cross alone the gap between thewire and the felt of the first press roll. Theserolls correspond in function to the pressure ap-plied to the post of alternate sheets of damppaper and felts in hand-made paper. D and E. The Press Rolls.—An endless woolenblanket (the felt) supports the tender webof paper through a pair of highly polishcilbrass rolls under considerable pressure, givingthe upper side of the sheet a smooth surface, and. Fig. 2. MAOHINE IN SECTION. B. The Wire.—The strained and purified pulpflows over an apron onto an endless travelingwire cloth, the mesh of which is 00 to 90 threadsto an inch. The wire is supjiorted perfectlylevel on a great many small rollers (the tablerolls), under which is a shallow wooden box,the save-all, into which much of the waterruns, leaving the pulp on the wire. The waterin the save-all contams much pulp and is usedover again. The boundary of the flow of pulpon the sides is made by endless rubber bands,called deckel straps, which travel with the are adjustable so that varying widths ofpaper may be made. The frame supporting the leaving the impress of the felt on the underside. From the first press, D. the sheet runsunder the second pair of rolls, E, and backthrough them in the rererse direction, thussmoothing the other side of the sheet and givingas even-sided results as possible. F. The Driers.—The paper is
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Keywords: ., bo, bookcentury1900, bookdecade1900, bookpublishernewyorkdoddmead
