Chemistry of pulp and paper making . FiG. 44. Beam Type of Paper Scale dustry. Where a full sheet of paper is available the weightper ream may be conveniently found on scales of the typeshown in Fig. 44. The folded sheet is placed on the hooksand the weight per ream is shown by the position of the sUdingpoise on the beam. This instrument, which is largely used formill work, is usually graduated for reams of both 480 and 500sheets. Two representative scales of the quadrant type are shown inFig. 45 and Fig. 46. With these the weight per ream in pounds. Fic. 45. Quick-STOP Paper ScaleCourtesy 0}

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Chemistry of pulp and paper making . FiG. 44. Beam Type of Paper Scale dustry. Where a full sheet of paper is available the weightper ream may be conveniently found on scales of the typeshown in Fig. 44. The folded sheet is placed on the hooksand the weight per ream is shown by the position of the sUdingpoise on the beam. This instrument, which is largely used formill work, is usually graduated for reams of both 480 and 500sheets. Two representative scales of the quadrant type are shown inFig. 45 and Fig. 46. With these the weight per ream in pounds. Fic. 45. Quick-STOP Paper ScaleCourtesy 0} B. F. Perkins & Son, Inc.

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpaperma, bookyear1920