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. spinning frames

Anotations

Scope note:

Mechanized devices, comprising a double-sided frame equipped with a long row of spindles carried by ring rails, designed to convert pure roving into yarn and strengthen the yarn by twisting the roving in a simultaneous and continious process. After receiving roving from an intermediary simplex machine or fly frame, these devices expose the roving to a drafting process through which it is transformed to a desired thickness. The drafted roving is then twisted and wound onto a ring bobbin for packaging. The most commonly used devices in the yarn manufacturing process, these frames are small, accessible, and simpler to use than other methods of cotton spinning.