Crompton's spinning mule frame, 1770s.
© Science Museum / Science & Society Picture Library
This hybrid spinning machine combined Arkwright's method of drawing out the roving (twisted cotton fibres) by rollers and Hargreaves's reciprocating carriage. It was invented by Samuel Crompton (1753-1827) of Bolton, Lancashire, between 1772 and 1779 for the purpose of spinning the fine yarn suitable for weft in weaving. The original machine, of which this is a replica, had about 144 spindles, but this copy has at some time been cut down to a convenient size for exhibition purposes. The original is preserved at Bolton Museum & Art Gallery.