Abstract: Apparatus for providing a frothed mixture of milk, air and steam has a mild reservoir, and a steam boiler. A pump draws milk from the milk reservoir and delivers it to an inlet of a Y-connector forming a mixing chamber. A second inlet of the Y-connector is fed with steam. The pump and the steam pressure are controlled such that the milk and steam are substantially of an equal pressure. The milk-steam mix is fed to a jet and exits from its outlet nozzle. The milk-steam mix expands as it exits from the nozzle. Furthermore, the flow of the milk-steam mix draws air into the mix by way of an air inlet conduit whereby a frothed product of milk, air and steam is produced at the nozzle.

Abstract: The invention provides for filter apparatus comprising a receptacle for liquid to be filtered and having outlet means by which filtered liquid can be dispensed therefrom, plunger means having filter means and arranged for movement within said receptacle and through said liquid so as to filter said liquid, said plunger means being provided with a skirt portion for contacting the inner surface of said receptacle during said movement of said plunger within said receptacle, and wherein said skirt portion is arranged to extend away from said filter means and in the direction of movement of said plunger means during the filtering of said liquid, said skirt means being arranged to be biased towards the inner surface of said receptacle by the pressure of the liquid being filtered during said movement.