Knotter

This was Jai, the expert lace-knotter […]

Source: wiktionary

The community-run Killybegs International Carpet Making and Fishing Centre is housed in the old Donegal Carpets premises and still has some of the looms. By using a tiny group of hand knotters who worked with the original company, they can still make the high-end rugs and carpets to order.

Source: wiktionary

1919, The Fabric of Civilization: A Short Survey of the Cotton Industry in the United States, Guaranty Trust Company of New York (author not credited), Chapter 8, pp. 54-55, One of the most important inventions, one that was received with acclaim by the American manufacturer, and one which actually reduced his labor cost on spooling no less than ten per cent. at one clip, is a tiny little thing that is held in the palm of the hand. This is the Barber knotter. When a thread breaks, the attendant places the two ends together in the machine and by the mere pressure of her thumb ties the knot much better than she could do it without the knotter.

Source: wiktionary

2015, K. C. Colby, “Local farmers showcase old harvesting equipment ahead of Steam Show,” CTV News Barrie, 21 July, 2015, The binder cuts the wheat down and bundles it into a sheaf. The sheafs are then stooked into a field to dry. A metal plate on the binder would have originally been made of wood, but the fact that this machine could automatically tie string was at one time state-of-the-art. ¶ “That knotter was a marvel of its time. I mean this is a huge technology jump to be able to have a piece of mechanical machinery that actually tied a knot.”

Source: wiktionary