1,153,702. Spray-producers. UNILEVER Ltd. 19 Jan., 1967, No. 2822/67. Heading B2F. An atomizer comprises a chamber 1 having tangential inlets 2 and a cylindrical rotor 4 coacting with an axial outlet aperture 3 to define an annular discharge outlet, the rotor being rotated at a minimum operative speed of 50,000 revolutions per minute. The rotor is driven by an electric motor or compressed air turbine 5, the space between the rotor spindle and its surrounding wall being. sealed by compressed air supplied through conduits 6. The rotor 4 may extend within the aperture 3, Fig. 2 (not shown), or be formed with a shroud (9), Fig. 3 (not shown), or vanes (12), Figs. 4, 5 (not shown).
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