one on and one off
One of the simplest forms of the HOLLOW , consisting
of a strip of paper, linen, jaconet, etc., twice
the width of the spine of the book, one half of
which is glued to the spine, the other half being
folded over the first and glued to it only along
the edge. The one on and one off method does not
give fully adequate support to the spine in most
cases, but it is useful when fastening a book back
into a tight cloth case. Additional strength may
be gained by folding the paper across the grain.
See also:ONE ON AND
TWO OFF ; TWO ON
AND ONE OFF . (339 )
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