the open bottomed 16 of the subject lawn sweeper the rotatable drum 34 is formed of a steel circular section 44 having a plurality of ends 46 welded thereto with a central shaft 48 which is carried by a flat plate 50 welded to the side of the housing 12 the central shaft 48 also carries the pulley 32 through which the power to rotate the circular drum is obtained by means of the gasoline engine 26 by referring now generally to fig3 and fig4 of the drawing there is shown in more detail the mounting of the vacuum forming means of the subject invention to the rotating drum 44 a plurality of plates 52 are welded to the periphery of the circular drum 44 as shown especially in fig4 of the drawing and the plurality of wire cable sections 42 are attached to the plates in the embodiment shown in the drawings there have been formed 8 rows of plates 52 around the periphery of the circular drum 44 with each row of plates having alternately 5 plates and 4 plates attached to the drum the plurality of wire cable sections 42 forming the vacuum forming means of the invention have their inner ends 54 fixedly attached to the plates 52 and thereby to the circular drum 44 and have their outer ends 56 positioned within a pressed flat tubing section 58 the wire cables and the elongated pressed flat tubing sections are formed of steel and the tubing sections are pressed on the ends of the wire cables in such a manner as to be able to rotate in the range of approximately 2 500 tp 3 000 revolutions per minute without separating.