screws engaged in elongated slots all of the angled sectors delineated by the struts 20 are structurally configured in the same way and all of the storage slots are thus identical to ensure the movement of containers into each slot 30 transport means 31 positioned above the drum are provided these transport means are pneumatic or use air jets as do the beginning of line and end of line conveyors 3 and 5 so as to preserve the homogeneity of the mechanisms used in the equipment the overall construction and operating method of the air jet conveyors are known to the specialist in the machine according to the invention an elongated tubular case or box 32 is located above the upper part of the drum and extends over its entire length blower means not shown are connected to the box in order to feed pressurized air to it the lower face 33 of the box 32 exhibits an indentation substantially square or rectangular in section and forming a channel 34 allowing the engagement of the necks of the containers the lateral walls of the channel 34 being slotted to direct the pressurized air onto the bottles and propel them the box 32 is fastened to the upper part of the frame 14 using fastening means described below allowing radial motion of the box in relation to the drum in its lowered position as shown in fig3 the lower face 33 of the box is brought into position closest to the drum 15 so that the channel 34 overhangs the slot delimited by the straightedge sections 25.