Bookbinding and its auxiliary branches . Seybold 20th Century. the gauge, and reads its position to the sixteenth of aninch. Micrometers may be attached which will read tosix-thousandths of an inch. The treadle may be helddown upon the pile after the cut has been made, so as toprevent narrow, unstable piles from falling over. Theside gauges are flush with the frames on each side, front TRIMMING 85 and back. The knives are easily removed for sharpening,and the adjustments are simple. Duplex Book Trimmer.— The unique feature of thismachine is that instead of one knife, requiring four turnsof the
Bookbinding and its auxiliary branches . Seybold 20th Century. the gauge, and reads its position to the sixteenth of aninch. Micrometers may be attached which will read tosix-thousandths of an inch. The treadle may be helddown upon the pile after the cut has been made, so as toprevent narrow, unstable piles from falling over. Theside gauges are flush with the frames on each side, front TRIMMING 85 and back. The knives are easily removed for sharpening,and the adjustments are simple. Duplex Book Trimmer.— The unique feature of thismachine is that instead of one knife, requiring four turnsof the piles, it is built with two parallel knives, requiring. Seybold Duplex Trimmer. only one turn of the table to trim four edges. Two pilesof all sizes from 21/2 by 5 inches to 12 by 16 inches each,and six inches high, are automatically clamped, cut andundamped. The double knives, obviating any twist, pro-duce exact results. The only adjustments are loweringthe knives to take up wear from grinding, setting two7 86 BOOKBINDING collars to govern the knife-bar movement according to thesize of the piles, and setting the back gauge. A number of different sizes of pattern blocks to corre-spond to the trimmed sizes of books are required. Totrim books, adjust the pattern blocks in the machine tothe clamping mechanism, set the collars to govern theknife-bar movement according to the size of the piles, andset the back gauge. Two piles of books are placed backto back on a movable table, which exposes to view thefour edges which are to be trimmed. By pulling the leverthe mechanism is set in motion, the piles clamped, and theknives then descend and trim t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbookbinding, bookyear
