clam shell coverer
A machine used in edition binding to apply paper
covers to side stitched books that are not rounded
and backed. The machine glues the spine, rolls or
presses the cover onto it, and carries the book to
the cover breaker where the back and both sides
along the spine are pressed by formers. Book sizes
handled range from a minimum of 7 by 5 inches to a
maximum of 12 by 9 inches, and up to 1 1/8 inches
in thickness (with a special attachment for books
up to 2 inches thick), at speeds up to 160 books
per minute. (320 )
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