Abstract: A vacuum-cleaner nozzle assembly has a base nozzle forming a downwardly open suction mouth having a lower edge and of a predetermined horizontal width measured in a direction transverse to a working direction of the base nozzle. A first and second expansion fitting each form a respective downwardly open suction mouth of a predetermined horizontal width substantially greater than the width of the mouth of the base nozzle, the width of the second fitting being greater than that of the first fitting. Each expansion fitting has an upwardly open seat complementary to and fittable with the lower edge of the base nozzle and a suction port in the seat such that, when the base nozzlenestle is fitted to the seat, aspiration through the base nozzle draws air upward from the suction mouth of the respective expansion fitting.

Abstract: A vacuum-cleaner nozzle assembly has a base nozzle forming a downwardly open suction mouth having a lower edge and of a predetermined horizontal width measured in a direction transverse to a working direction of the base nozzle. A first and second expansion fitting each form a respective downwardly open suction mouth of a predetermined horizontal width substantially greater than the width of the mouth of the base nozzle, the width of the second fitting being greater than that of the first fitting. Each expansion fitting has an upwardly open seat complementary to and fittable with the lower edge of the base nozzle and a suction port in the seat such that, when the base nozzlenestle is fitted to the seat, aspiration through the base nozzle draws air upward from the suction mouth of the respective expansion fitting.

Abstract: Rotary-controlled multipole electric switch fitted with a handle (4) and a housing (1) in which a cam device transforms the rotation of the handle into a translational movement of contact bridges (21). In order to ensure coordination between a cylindrical control core (13) and a slider 16 bearing contact bridges, the cam device is fitted with at least two notches (19, 20) offset around the axis of rotation X of the knob (4c), and with a control projection (14) applied respectively to the bottom of one notch in the OFF position and to the bottom of the other notch in the ON position by the force supplied by springs (24) acting on the slider and contact pressure springs (22).