cleaning shoe

English

Upper sieve of a cleaning shoe for a combine

cleaning shoe (plural cleaning shoes)

(agriculture) The part of a harvester or combine which both sieves out large impurities such as rocks and blows out light impurities such as chaff
- 2003, William W. Casady, “Grain Harvesting Systems”, in Dennis R. Heldman, editor, Encyclopedia of Agricultural, Food, and Biological Engineering‎, page 449:
  The cleaning shoe expels lightweight material known as chaff as well as material with intermediate aerodynamic properties, such as straw, from the back of the combine.
(rail transport, machinery) A brake shoe used to clean a wheel
- 1913, Pennsylvania Railroad Test Dept., Brake Tests‎, page 245:
  After every test (except those at 30 mph) the wheel was cleaned by making two stops with cleaning shoes from a speed of 40 miles per hour.

part of a combine

brake shoe used for cleaning