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 material processed]
7. textile working equipment
8. [textile fabricating tools and equipment]
9. yarn winders

Anotations

Scope note:

Mechanized devices, comprising a system of automated pullies and carrier rolls, used to wind strings of yarn into tight balls. These machines are built in various sizes depending on the desired size of the yarn ball, and are often arranged with a double screw to produce two yarn balls simultaneously.