Abstract: A silenced sprocket comprises, adjacent to the base of its teeth, a circular channel, or bilateral channel, on the metal body of the sprocket itself. The bilateral channel has a minimal radial extension, a silencing rubber element (106?), and a bilateral channel. The bilateral channel creates its own housing and has a minimal radial extension compared to the sprocket radius. The silenced sprocket is made by a molding technique that uses special molding components, adapted to apply the rubber silencing element on the sprocket metal body. These components are of annular circular shape, U cross section and a width essentially corresponding to the channel width, rendering the mold independent from the specific shape of the sprocket metal body.

Abstract: The problem of progressive deforming of the silencing rubber by the motion transmission member (chain) is present in silenced sprockets. In particular for a toothed crown, lacking a central hub, the problem of the deforming or “lowering” of the rubber hasn't been resolved adequately. In the case of a pinion with a hub, an excessive quantity of rubber is used. The silenced sprocket of the present invention comprises, adjacent to the base of its teeth (105?), a circular channel, or bilateral channel (200), on the metal body of the sprocket itself. On the inner circular step (110?) of the channel (200) are discharged the forces created in the rubber by the transmission chain. The bilateral channel has a minimal radial extension, such as about ½ cm in the motorcycle field. In general the silencing rubber element (106?) and the bilateral channel (200), which creates its housing, have a minimal radial extension compared to the sprocket radius.

Abstract: A system for moving and diverting trains (5) of bobbins (7) in a spinning plant with more spinning mills (1) includes a pair of rails (40,41), along which a carriage (32) moves. The carriage (32) can be stopped at a point corresponding to one spinning mill (1) and carries, mounted thereon, a motor (39), which drives the trains (5), coming from a main feeding line (3) to terminal sections (10), situated beside the spinning mills (1). Activator means (29), situated also on the carriage (32), operate the switches (20,21,22) aimed at deviating the path of the trains from the main line (3) to union sections (15) joined to the terminal sections (10). The carriage (32) is moved by a motor (42) and its position along the rails (40,41) is determined by an encoder (43).

Abstract: A system for moving and diverting trains (5) of bobbins (7) in a spinning plant with more spinning mills (1) includes a pair of rails (40,41), along which a carriage (32) moves. The carriage (32) can be stopped at a point corresponding to one spinning mill (1) and carries, mounted thereon, a motor (39), which drives the trains (5), coming from a main feeding line (3) to terminal sections (10), situated beside the spinning mills (1). Activator means (29), situated also on the carriage (32), operate the switches (20,21,22) aimed at deviating the path of the trains from the main line (3) to union sections (15) joined to the terminal sections (10). The carriage (32) is moved by a motor (42) and its position along the rails (40,41) is determined by an encoder (43).