Cure the sweet potatoes for 1 to 2 weeks. Keep the roots in a room or other location that reaches between 75 and 80 degrees Fahrenheit (24 and 27 degrees Celsius) with relative humidity of 90 to 95 percent.1  The sweet potatoes need to cure for at least 7 days, but they can be kept there for as many as 14 days. The sweet potatoes need to cure for at least 7 days, but they can be kept there for as many as 14 days. 2  The curing process creates a second skin that forms over scratches and bruises, allowing the sweet potatoes to last longer in storage.
The state of the art spinning wheel in England was known as the Jersey wheel however an alternative wheel, the Saxony wheel was a double band treadle spinning wheel where the spindle rotated faster than the traveller in a ratio of 8:6, drawing on both was done by the spinners fingers.
This caused the fibers to be drawn out and twisted to make yarn. James Hargreaves was a weaver who lived in Stanhill, near Blackburn in Lancashire. He was poor, uneducated and had a large family. It is said that, in 1767, one of his daughters accidentally knocked over his spinning wheel.e called his machine the Spinning Jenny, after his daughter. Hargreaves made a number of Spinning Jennies and started to sell them in the area. However, since each machine was capable of doing the work of eight people, other spinners were angry about the competition.