A machine for producing articles of sheet material, having a conveyor with powered rollers for feeding blanks along a path; pressure devices for holding the blanks in contact with the powered rollers; and operating devices which interact with the blanks to perform operations, in particular folding and gluing operations, on the blanks as the blanks travel along the path. The conveyor has a number of drive members arranged along the path, and to which the pressure devices are connectable by universal transmission assemblies.
