Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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backing boards

The boards used in hand binding to assist inBACKING a book. Backing boards are generally made of a very hard wood and are frequently faced with strips of metal. The upper edge of the board is beveled at an angle of approximately 80°, over which the outer sections or leaves on both sides of the text block are bent. The board is also thicker at this edge than at the lower, so that when it is placed on the side of the text block near the spine and secured in theLYING PRESS , the force of the press is concentrated nearest the spine. (92 , 183 , 335 )




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