The throstle frame was a spinning machine for cotton, wool, and other fibers, differing from a mule in having a continuous action, the processes of drawing, twisting, and winding being carried on simultaneously.OED s.v. Throstle. It derived its name from the "singing or humming which it occasioned,"Edward Henry Knight, Knight's American Mechanical Dictionary (Houghton, Osgood and company, 1881), p. 2564. throstle being a dialect name for the song thrush.
See also
Cowaszee Nanabhoy Davar
Notes