Rating | Solver | Clue |
---|---|---|
ROWEL | Spur wheel | |
GEAR | A toothed wheel, or cogwheel; as, a spur gear, or a bevel gear; also, toothed wheels, collectively. | |
HOOKE'S GEARING | Spur gearing having teeth slanting across the face of the wheel, sometimes slanting in opposite directions from the middle. |