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.
James Hargreaves' version of the Spinning Jenny had a single wheel that controlled eight spindles which created a weave that used eight threads.This enhancement of the spinning wheel required less time needed to create textiles.his decreased the amount of manual labor needed. In 1764, a British carpenter and weaver named James Hargreaves invented an improved Spinning Jenny, a hand-powered multiple spinning machine that was the first machine to improve upon the spinning wheel.