| 416 / | HD | FLUID REACTION SURFACES (I.E., IMPELLERS) |
| 147 | DF | HAVING POSITIVE MEANS FOR IMPELLER ADJUSTMENT {6} |
| 155 | DF | .~ Motor bodily rotatable with impeller hub or shaft {1} |
| 156 | | .~.~ Fluid motor {2} |
| 157 R | DF | .~.~.~> Coaxial with impeller shaft {2} |
| 158 | DF | .~.~.~> Working member mounted or housed |