A short dictionary entry describing the balling machine used in cotton thread manufacture to wind thread into balls on a rotating spindle or paper cap. It explains the flyer, spindle, stop-motions, and ball sizes (16 to 600 to the pound), with an illustration of the machine and sectional views of a ball. It also credits the invention to M. I. Brunel and notes its adoption at Strutt's mills in Derbyshire around 1805.