Abstract: The invention relates to a filtering and collecting device of solid and powder refuse for industrial and civil suction apparatus equipped with at least one flexible, removable storage bag (17) and means (4) of drawing in and conveying refuse to the storage bag (17) adapted to form a flow of air and refuse, the device comprising: an air and refuse sorting zone (16a) supplied with the flow of air and refuse, at least one filter (19) communicated with the sorting zone (16a) and adapted to allow for the escape of air from the flow, and the storage bag (17) communicated with the sorting zone (16a) and made of an impervious material of the disposable type, to be thrown away together with refuse collected therein.

Abstract: A street sweeper machine is provided for picking up and transporting trash comprising a frame having a main longitudinal dimension and engaging from and rear wheels, a driver's cab, motor members, a trash bin, a roll brush located between said wheels and having an axis symmetry parallel to a surface to be cleaned and transverse to said longitudinal dimension, a trash conveyor conveying rash from said roll brush to said bin, and steering members engaging all of said wheels to make all of them steerable and adapted to define an intersect point for the axes of said wheels in cornering which lies proximate a continuation of said axis of symmetry of said roll brush.

Abstract: The invention relates to a scraping device for floor and surface cleaning machines, and comprises: a first upright bell-shaped element (2) fixed against rotation and having an edge (6a) adapted to bear directly on a surface to be cleaned, a second inverted bell-shaped element (9) engaged coaxially and rotatably inside the first element (2) to define a substantially closed chamber (10) therewith, spindles (13) rotatably through-penetrating the second element (9), scraping brushes (14having metal bristles and being engaged rotatively with the second element (9), outside the chamber (10), and rotatively rigid with the spindles, and drive members (15,16,17) for transmitting the rotary motion to the scraping brushes (14) engaging with the spindles (13) inside the chamber (10).

Abstract: A machine with a frame supporting two side brushes downwardly, a center roller, and an auxiliary front brush movable on command in a crosswise direction to the frame, and upwardly a driver's cab, a trash container, a water tank and a trash conveyor. The water tank and trash conveyor are of reduced dimensions (i.e., short) with respect to the machine lengthwise direction are flattened and inserted between the cab and container. The conveyor has an open structure which extends vertically in an air-tight transport channel between a top end in communication with the container via an opening in the container and a bottom end placed forwardly close to the center roller. A dust suction unit is also provided in communication with the container interior, to draw in dust raised by said brushes through the opening into the trash container from a transport channel between the bottom and top ends of the conveyor.

Abstract: The invention relates to a sweeper machine for floors and bounded surfaces, e.g. the floors of workshops and warehouses, courtyards, having engaged with the machine frame, a removable container for collecting the swept trash supported by pivotally-mounted guides engaged by swivel members extending in a crosswise direction to the machine's longitudinal axis and cooperating to define a small frame intervening sealingly between a suction assembly in the frame and a suction mouth of the container, and with snap-action hook-up elements provided between the frame and the pivotally-mounted guides and spring members projecting from the frame and acting by spring contact on the container.