ROTARY SPRINKLER

A rotary sprinkler having a base member (1) for coupling to an irrigation supply and formed with one or more base member outlets (5), there being furthermore provided a rotary distributor member (7) of substantially cuspidal shape rotatably mounted with respect to said base member (1) with an apical end thereof adjacent the base member (1) and an opposite broad end thereof remote from the base member (1), a plurality of distributor passages (13) are formed in a curved surface of the distributor member (7), each passage (13) extending from a passage inlet (13a) located in said apical end adjacent to a base member outlet (5) to a passage outlet (13b) located in said broad end, a rotary turbine member (15) is rotatably mounted with respect to the distribution member (7) and provided with a plurality of turbine blades (18) disposed adjacent the passage outlets (13b) so that irrigation streams emerging from the passage outlets (13b) strike said blades (18) and rotatably displace the turbine member (15), ball drive means (21) being located between the turbine (15) and distributor (7) members for transmitting the rotary displacement of the turbine member (15) to the distributor member (7).