English: Throstle Spinning Frame (c. 1835), Locks & Canal Comp., Lowell, Mass.
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. It "derived its name from the singing or humming which it occasioned," throstle being a dialect name for the song thrush.
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