(57) An apparatus (41, 62) for feeding sets of signatures, supplied by signature stacking
machines (10, 11, 12), to a signature collator (5) having a predetermined large number
of compartments (6), in such a way that automatic book production can be achieved,
comprises, for each compartment (6) of the collator (5), two trains of boxes (24,
25) movable along a forward travel line (26), the boxes (31, 32) of each train of
boxes (24, 25) being capable of being positioned initially at a first end of the forward
travel line (26), in synchronization with a first manipulator (21), to receive sets
of signatures, and being capable of being positioned subsequently at a second end
of the forward travel line (26), in synchronization with a second manipulator (23),
to transfer the sets of signatures to the compartment (6) of the collator (5).
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