Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by context]
7. culinary equipment
8. [food processing equipment]
9. [grain processing tools]
10. [grain washers]
11. grain cleaners

Anotations

Scope note:

Devices used to clean grain consisting of a cylinder covered in mesh or with perforations. Grain passes through the cylinder as it rolls and foreign matter, such as dirt, is trapped in the mesh or perforations.