Abstract: A machine (100) for espresso coffee of the piston type is described. The machine comprises a cylinder (1), a piston (2) which is configured to perform a translation movement in said cylinder, a rod (4) having an end cooperating with said piston (2), an operating lever (5), a spring (3), a member (6) configured to cooperate with said rod (4) and to move said piston (2) from a first position to a second position in which said spring (3) is at least partially compressed, and an opening (71) for introducing water into said cylinder (1) configured so as to introduce water above the piston (2).

Abstract: A machine (100) for espresso coffee (barley or other beverages) of the piston type is described. The machine comprises a cylinder (1), a piston (2) which is configured to perform a translation movement in said cylinder (1), a rod (4) having an end cooperating with said piston (2), an operating lever (5), a member (6) configured to cooperate with said rod (4) and to move said piston (2) from a first position to a second position by compressing a spring (3), and a mechanism (8, 10, 11, 12) which realizes the connection between said operating lever (5) and said member (6), wherein said mechanism is of the “hold-to-operate” type.

Abstract: A machine (100) for espresso coffee of the piston type is described. The machine comprises a cylinder (1), a piston (2) which is configured to perform a translation movement in said cylinder, a rod (4) having an end cooperating with said piston (2), an operating lever (5), a spring (3), a member (6) configured to cooperate with said rod (4) and to move said piston (2) from a first position to a second position in which said spring (3) is at least partially compressed, and an opening (71) for introducing water into said cylinder (1) configured so as to introduce water above the piston (2).

Abstract: A machine (100) for espresso coffee (barley or other beverages) of the piston type is described. The machine comprises a cylinder (1), a piston (2) which is configured to perform a translation movement in said cylinder (1), a rod (4) having an end cooperating with said piston (2), an operating lever (5), a member (6) configured to cooperate with said rod (4) and to move said piston (2) from a first position to a second position by compressing a spring (3), and a mechanism (8, 10, 11, 12) which realizes the connection between said operating lever (5) and said member (6), wherein said mechanism is of the “hold-to-operate” type.

Abstract: The present invention relates to a coffee machine, whose dispensing unit has a heat generator which is independent of the boiler of the machine, valves for opening and cutting off the cold water pipe and hot water pipe which supply the dispensing unit, a temperature sensor which is arranged in the dispensing unit and control means which are connected to the valves, the temperature sensor and the heat generator in order to allow the preparation of different types of coffee, even in succession. The present invention also relates to a method for making coffee.

Abstract: An apparatus constituted by a plurality of dispensing assemblies for automatically preparing and dispensing espresso coffee, each assembly of the plurality being of the type comprising a kinematic arrangement having a connecting rod and crank for moving the members responsible for preparing and dispensing the coffee in a prescribed operating sequence. The kinematic arrangement comprises a pair of connecting rods which are connected, at one end, to a respective crank and motor means for actuating at least one of the cranks. The dispensing assemblies are beside each other and the connecting rod of an assembly is provided with means which can function as the connecting rod of the adjacent assembly and transfer the rotational movement to the relevant crank so that all the dispensing assemblies are actuated at the same time by means of a single motor.

Abstract: The present invention relates to a coffee machine, whose dispensing unit has a heat generator which is independent of the boiler of the machine, valves for opening and cutting off the cold water pipe and hot water pipe which supply the dispensing unit, a temperature sensor which is arranged in the dispensing unit and control means which are connected to the valves, the temperature sensor and the heat generator in order to allow the preparation of different types of coffee, even in succession. The present invention also relates to a method for making coffee.

Abstract: An apparatus constituted by a plurality of dispensing assemblies for automatically preparing and dispensing espresso coffee, each assembly of the plurality being of the type comprising a kinematic arrangement having a connecting rod and crank for moving the members responsible for preparing and dispensing the coffee in the prescribed operating sequence. The kinematic arrangement comprises a pair of connecting rods which are connected, at one end, to a respective crank and motor means for actuating at least one of the cranks. The dispensing assemblies are beside each other and the connecting rod of an assembly is provided with means which can constitute the connecting rod of the adjacent assembly and transfer the rotational movement to the relevant crank so that all the dispensing assemblies are actuated at the same time by means of a single motor.

Abstract: A device for heating and working up milk, in particular for preparing cappuccinos on a coffee machine, having a conveyor pipe with an open end which can be submerged in a vessel containing milk, a first pipe for supplying steam connected to the conveyor pipe, a valve, a pressurised air source, a second pipe for supplying pressurised air connected to the conveyor pipe, a temperature transducer associated with the submergible end of the conveyor to detect the temperature of the milk, a control unit connected to the valve, to the pressurised air source, as well as to the temperature transducer, said control unit being programmable to command the open and close of said valve and to actuate said pressurised air source, one independently from the other according to the desired temperature and/or working up of the milk.

Abstract: A device for heating and working up milk, in particular for preparing cappuccinos on a coffee machine, having a conveyor pipe with an open end which can be submerged in a vessel containing milk, a first pipe for supplying steam connected to the conveyor pipe, a valve, a pressurised air source, a second pipe for supplying pressurised air connected to the conveyor pipe, a temperature transducer associated with the submergible end of the conveyor to detect the temperature of the milk, a control unit connected to the valve, to the pressurised air source, as well as to the temperature transducer, said control unit being programmable to command the open and close of said valve and to actuate said pressurised air source, one independently from the other according to the desired temperature and/or working up of the milk.

Abstract: A process for alkylation of phenols comprising letting a phenol react with a vinyl-aromatic hydrocarbon substituted in the vinyl group, in the presence of an organic solvent and of an acid catalyst in an aqueous solution, and of a polymerization inhibitor.

Abstract: A process for the chlorination of the benzene rings of tricyclo 8.2.2.2 hexadeca 4,6,10,12,13,15 hexane (or (2,2)-paracyclophane) having the formula (I): ##STR1## by gaseous chlorine, by operating in the presence of at least one metal chloride as a catalyst, and at least one co-catalyst having the formula V:R--OH (V)whereinR=hydrocarbon or alkylcarboxylic radical with linear or branched chain, containing from 1 to 6 carbon atoms is taught.

Abstract: Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p-methylbenzyl-trimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a compound of the formula (I):Y--A--(X).sub.n (I)wherein A represents an aromatic group, Y an electron donor group, X an electron acceptor group, and n is an integer from 1 to 3.

Abstract: Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p-methylbenzyltrimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a dialkylether of mono- and poly-ethylene glycols having the formula:R--O--CH.sub.2 CH.sub.2 O--.sub.n R' (I)wherein R and R', which may be the same or different, represent alkyl groups having from 1 to 5 carbon atoms, and n is an integer from 1 to 5.

Abstract: There is disclosed a process for the preparation of halogenated (2,2)-paracyclophanes by Hofmann elimination, in an alkaline medium, from p.methylbenzyltrimethylammonium hydroxide halogen-substituted in the nucleus.

Abstract: Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p.-methylbenzyltrimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a ketone of the formula:Ch.sub.3 --CO--CH.sub.2 --R (I)wherein R is hydrogen, a halogen, or an alkyl-carboxylic group.

Abstract: A process for the preparation of (2,2)-paracyclophane by conversion of p.methylbenzyltrimethylammonium halide to the corresponding hydroxide and by Hofmann elimination from p.methylbenzyltrimethylammonium hydroxide, wherein both reactions are carried out in the same aqueous solution of an alkaline hydroxide and in the presence of a copper or iron compound.