(57) The envelope filling machine for introducing sheets (2) into envelopes (3) includes
distributing devices (4) for feeding the sheets (2) to a sliding surface (5), transferring
means (11), operated along the sliding surface (5) to transfer the sheets (2) toward
a envelope filling station (10) and feeding means (30), aimed at supplying individual
envelopes (3) to be sent to the envelope filling station (10) by guiding means (14),
with the aperture turned upward and facing the direction from which the sheets (2)
arrive. The envelope filling station (10) includes an elevator group (20), equipped
with distributing means (21), situated at the side opposite to the one where the sheets
(2) arrive, for engaging the envelopes (3) to raise a series of envelopes (3), arranged
one over another and bring each envelope (3) from a lower entrance position in the
envelope filling station (10) to a higher position, substantially at the same level
as the sliding surface (5), to be ready for the introduction of the sheets (2).
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