(under subclass 80) Apparatus comprising a set of blades* mounted on the runner* and acted upon by the fluid discharging from the orifice.
SEE OR SEARCH THIS CLASS, SUBCLASS:
63, for apparatus comprising a reaction- type runner* and a set of fluid impingement blades* in an arrangement which includes a plurality of runners* mounted for movement relative to each other or on separate shafts* for movement independent of each other.