Abstract: The pump has an integrated fluid pressure actuator which provides for the movement and the axial retention of a movable cover which closes one end of the seat of rotation of the lobes of the pump itself. When the pump is in operation, the movable cover closes the seat of the lobes whereas, when the pump is to be washed, the cover is moved away from the lobes to allow effective circulation of the cleaning liquid. The pump is further equipped with a circuit for washing the seals on the shafts, which is automatically active when the movable cover is in the retracted position of the washing phase and which, in this state, draws the cleaning liquid directly from the suction pipe of the pump, makes it circulate behind the seals on the shafts and discharges it into the delivery zone of the pump itself. The pump is also equipped with apertures which perform the function of indicators of malfunctioning of the pump itself in the event of the main seals on the shafts giving way.

Abstract: The method of packing into boxes ice cream cones comprises the following operative steps: positioning of at least one basket (C) with the ice creams G, in position with at least one empty box (S) which is open upwards; lifting and removal of two parallel rows of ice creams from their seats in the basket; composite rotation of the two rows of ice creams, upwards and in opposite directions through 90.degree.

Abstract: Element of stepwise grid for waste incinerator furnaces of the type forming, together with other similar grid elements, a course or step of a grid borne on a support beam comprising a rear articulated joint and a front thrust portion, provided with a swinging and sweeping hammer which slides on a grid element of a lower step, characterized in that it comprises an upper plate and a lower support box, coupled to each other by means of pairs of rear portions bent to a hook shape, which hook themselves onto said articulated joint, said articulated joint being accomplished by a continuous bar stably constrained to support plates welded onto said support beam.