Abstract: An accessory for the preparation of a creamy air-milk-steam emulsion to produce Italian cappuccino, is mounted at the end of a steam outlet pipe (2) of an espresso coffee machine. The accessory comprises an aspiration chamber (3) communicating with the steam outlet pipe, a first lateral opening (4) which communicates with a receptacle containing milk, a second lateral opening (5) in communication with the atmosphere, and a third opening (6) through which leaves a first mixture which flows into an emulsion chamber (7) having a first outlet (8). The accessory comprises a first rigid tubular member (9) having the first opening (4) and the first outlet (8) and receiving partially a second flexible tubular member (10) connected at its upper end to the steam outlet pipe (2) and comprising the aspiration chamber (3). The invention is applicable to all coffee machines with a steam outlet pipe.

Abstract: An accessory for the preparation of a creamy air-milk-steam emulsion to produce Italian cappuccino, is mounted at the end of a steam outlet pipe (2) of an espresso coffee machine. The accessory comprises an aspiration chamber (3) communicating with the steam outlet pipe, a first lateral opening (4) which communicates with a receptacle containing milk, a second lateral opening (5) in communication with the atmosphere, and a third opening (6) through which leaves a first mixture which flows into an emulsion chamber (7) having a first outlet (8). The receptacle containing the milk is integral with the accessory. The invention is applicable to a cappuccino accessory fixed on a steam outlet pipe of a coffee-making machine.

Abstract: A transmission system comprising at least two wheels and a belt wound around the wheels with an unambiguous transmission ratio in that the transmission system is free from clearance and is comparatively stiff, while geometric errors, such as the polygon effect, and manufacturing errors and the occurrence of slip are neutralized in that the wheels are subdivided into segments, which can separately perform a tangential displacement. The belt has spaced opening for receiving the segments, which tangentially displace in case of misalignment of the segments to the belt openings. The belt has spaced opening for receiving the segments, which tangentially displace in case of misalignment of the segments to the belt openings.