1851 Great Exhibition: Official Catalogue: Class VI.: J. Frost
From Graces Guide
84. FROST, J., Macclesfield — Inventor.
Models of improved winding engine and cleaning frame.
Model of a machine spinning and doubling at one operation.
Model of a throwing mill, in which the spindles are turned by friction. Throwing mill, with spindles turned by friction. Iron roller inlaid with wood, placed in segments, turns a spindle with iron wart is stated to give regular spin, take less power, and stands in less space than common throwing mills.
Improved winding engine.
Cleaning train: the cleaners are fitted up with a slop, so as to be fixed on the guide rail, to answer the purpose of the eye or guide.
Spinning and doubling machine, which works two operations by one process, and can be converted into a tram doubler.