Improvements in apparatus for the treatment of fluids with ultraviolet radiations and the like

摘要

In apparatus for irradiating milk &c., the lamp 29 is mounted on a carriage slidable on guides 27 away from the operative position between the treatment surfaces 8 into a ventilated chamber 34. Reflectors 31, 32 are provided to concentrate the radiation, and the apparatus is surmounted by a hood 37 to remove fumes. The inclined surfaces 8 are fed from troughs 9 along their upper edges, provided with flanges 11 dipping into the liquid to retain air bubbles. The liquid is supplied from a chamber 16 having a float-valve 20 to provide a constant level. Automatic means may be provided for moving the lamp out of the operative position if the supply of liquid fails.