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]

Anotations

Scope note:

Small machines, both mechanized and hand-held, designed to rapidly and precisely tie a weaver's knot to faciliate the manufacture of woven and knitted goods. To secure the knots, these devices tie the warp yarns from a new beam onto the warp yarns from another warp on a loom. Traditionally, the operator holds the stand-alone knotter machine in their left hand with their thumb on its trigger; this trigger prompts the machine's guide fingers to move in a rotary action, which both creates a knot and trims the woven materials' loose ends.