hodometer

Hodometer, ho-dom′e-tėr, n. an instrument attached to the axle of a vehicle to register the revolutions of the wheels.

As for the windlass and hodometer, they do, it is true, contain whole series of gears used in steps as a reduction mechanism, usually for an extraordinarily high ratio, but here the technical details are so etherial that one must doubt whether such devices were actually realized in practice.

Hero hodometer and water clocks 2nd C., A.D.