Abstract: Combined nozzle for a dust vacuum-cleaner includes a brush with an interchangeable arrangement at the end of a tube connected to a suction device. The brush has a lower planar face and joint for an arrangement in two different transverse positions with respect to the tube or two different positions longitudinally in the tube extension. In each position, the suction is achieved by an opening in the planar face, or an opening at one of the ends. The joint includes a pivot about at least two axes, such that, when in a position for suction by an end, the brush is oriented so that the lower face and the longitudinal axis of the brush are essentially parallel to the axis of the suction tube.

Abstract: An automatic bag-dispenser which includes a supply of bags (30) arranged flat in a stack (3), and two rotary devices (1, 2) which have parallel axes, are located adjacent each other and are covered with a non-slip material. The rotary devices (1, 2) rotate in counter-rotation at linear speeds which differ at their periphery. At least one of the rotary devices (1, 2) can come into contact with one of the two end bags (30) in the stack (3) in the region of the bottom (32) of the bag (30) such that it can be driven between the rotary devices (1, 2). At least one of the rotary devices (1, 2) has a central part which is not rotated and opposite which devices (4) for gripping the center part of the bag (30) are active.