Abstract: A dispensing piston-cock for ice-cream machines comprises a baseplate and a cylinder, both made of plastic material. The cylinder is open at one end and has an ice-cream dispensing hole at the opposite end which is integral with the baseplate. A communication duct formed in the baseplate opens near the lower end of the cylinder and a piston is slidably mounted in the cylinder to reciprocate from a first position where it closes the communication duct and a second position at which the lower end of the piston is raised above the communication duct. The lower portion of the piston at least up to a height to cover the communication duct in the lower position of the piston is covered by a metal jacket.

Abstract: An ice cream making machine provided with a rotating beater (5) and a stationary counter-beater (16). The stationary counter-beater is carried by a supporting shaft (15) connected at one end to a cross-plate (17) formed with notches (18) for engaging with pegs (14) secured to the closure door (10) of the freezing cylinder (1) of the ice cream machine. The opposite end of the shaft (15) is rotatably idly supported within a tubular hub (8) provided at the rear end of the rotating beater (5).

Abstract: A flavor mixing and dispensing unit for ice cream machines comprising a vertical cylinder open at its top and closed at its bottom by a bottom wall; said bottom wall being provided with a central through boring and with a number of radial slits extending from said central boring toward the outer periphery of said bottom wall; at least one flavoring substance injection port opening in said cylinder at a position just above said bottom wall; an ice cream inlet port opening in said cylinder at a position above said flavoring substance injection port; a rotor arranged at the bottom of said cylinder, said rotor being provided with radial arms, and being supported by a spindle extending upwardly through the said cylinder up to the actuating shaft of a suitable motor; a piston, provided with an axial boring for the passage of said spindle, slidably housed inside of said cylinder; means for lifting and lowering said piston in said cylinder from a position in which the bottom of said piston is disposed slightly above

Abstract: A device for homogenization and thermal treatment of liquids, and particularly of liquid mixtures for the ice cream industry, comprising a container, a centrifugal pump communicating with the bottom of said container so as to continuously suck the liquid from said container and to pump it back into said container, and heating and cooling means in said pump in heat exchange relationship with the liquid flowing through said pump.

Abstract: A dispensing valve comprising: a first tubular member closed at one end by a wall; a second tubular member telescopically housed in said first tubular member and closed at the opposite end by a wall; said second tubular member being slidable with respect to said first member from a rest position in which it is housed inside said first tubular member into abutment against its end wall, to a position in which it projects out of said first tubular member; a piston like member secured to the closure wall of said first tubular member and capable of slidingly penetrating with a close fit into the tubular passage of said second tubular member for a distance shorter than the maximum sliding stroke of said second tubular member with respect to said first tubular member; a first radial inlet port in said first tubular member at a position near its closed end, and a second radial outlet port in said second tubular member at a position in which said outlet port is wholly housed inside said first tubular member in the sai

Abstract: The mixer shaft is provided with radial arms supporting the ends of a set of scraping blades into scraping engagement with the wall of the freezing barrel. The ends of the scraping blades are fastened to supporting plates which in turn are secured to the supporting arms in a radially adjustable manner.