Throstle frame
Encyclopedia
The throstle frame was a spinning
Spinning (textiles)
Spinning is a major industry. It is part of the textile manufacturing process where three types of fibre are converted into yarn, then fabric, then textiles. The textiles are then fabricated into clothes or other artifacts. There are three industrial processes available to spin yarn, and a...

 machine for cotton, wool, and other fibers, differing from a mule
Spinning mule
The spinning mule was a machine used to spin cotton and other fibres in the mills of Lancashire and elsewhere from the late eighteenth to the early twentieth century. Mules were worked in pairs by a minder, with the help of two boys: the little piecer and the big or side piecer...

 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
Song Thrush
The Song Thrush is a thrush that breeds across much of Eurasia. It is also known in English dialects as throstle or mavis. It has brown upperparts and black-spotted cream or buff underparts and has three recognised subspecies...

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