Abstract: The present invention proposes a device for control of the presence of conductive bodies or materials in bales for processing in bale-breaker machines equipped with rotating members for the take-off of fibre locks from the bales disposed in a row and also equipped with pressure elements resting on the upper surface of the bales being processed. The device comprises conductance sensors associated with the pressure elements and sensitive to the conductance existing between said elements and forming part of an electric circuit adapted to cause the machine to be acted upon in such a way as to prevent damage to the rotating take-off members when the conductance between any of two contiguous pressure elements exceeds a pre-set value. The result of the machine being acted upon may be the halting of the rotating take-off members and/or a raising of such members and possibly a simultaneous cut-out of the machine.

Abstract: A device for condensing a fleece emerging from a carding engine or a like machine has two adjoining and aligned sets of rollers (5, 5', 5", 5"') having hollows along their generating lines and which are rotated about their own axes perpendicularly to the plane at which the fleece is doffed, and which are spaced apart relative to a fleece doffing roller (3). The rollers belonging to a set rotate in a direction and those of the adjoining set are rotated in the sense opposite to the former. The rotation of the rollers of two adjoining sets can be concordant in direction so as to provide a central doffing spot (13) between the two sets, or such a rotation can take place in directions opposite to one another and diverging, so as to provide two doffing spots (13,13') placed laterally of the two roller sets. By the rotation of such rollers two airstreams are originated, whereby the fleece is airborne and so conveyed towards the doffing spot(s) where a fibre sliver is formed to be forwarded to a condensing unit.

Abstract: A machine for withdrawing or removing fibre staples from a set of bales of textile staples which can be displaced rectilinearly and alternately, with a carriage having a reciprocal vertical motion carrying rotary reels for removing said fibre staples from the bales is controlled by a device which comprises a plurality of detectors adapted previously to determine in the vertical sense sequential working zones for the carriage on the bales and an apparatus for automatically impressing a differential action of the carriage on the bales in relationship with the sequential preselected working areas. Thus the withdrawal of the fibre staples is obtained consistently with the compactness of the material contained in the bales without discrepancies in the production run and with a constant degree of bale-breaking.