Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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duplex book trimmer

A type of cutting machine having two trimming knives parallel to each other on opposite sides above a central cutting table. The table consists of a cutting block equipped to clamp the pile firmly. Two piles of books, each 5 to 6 inches high, are placed spine to spine against the gauges. This brings the fore edges of each pile on opposite sides at the table and under the knives. After cutting the fore edges, the other edges of the book are brought into position by giving the table a quarter turn. This also changes the position of the knives on the knife-bars above, drawing them closer for trimming the heads and tails of both piles simultaneously. See also: THREE-KNIFE TRIMMER . (142 )




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