 Mill ponds, weirs, sluice gates and an aqueduct are also part of the museum as well as a 19th-century working waterwheel, fulling stocks and other machinery associated with the finishing of woollen cloth, an original Arkwright water frame, and a Hargreaves Spinning Jenny.It also houses a museum and bookshop selling, among other things, books on local textile history.In 1856 Joseph Porritt established Sunnybank Mill, an enormous mill that once housed the world's largest spinning mules.