The spinning mule is an invention that was birthed from the ideas of past inventions. It had changed the spinning game greatly as it wiped almost all the defects its competitors had. The first model, invented by Samuel Crompton, contained these main parts; roving or sliver, drawing-rolls, bare spindles, and a moving carriage. The spinning mule has an intermittent process that spins different fibers into yarn. First, the roving is passed between the rollers or rolls where they separate the wool fibers creating a finer roving. After that, the roving spurns on the spindles that are on top of the moving carriage. The spindles then move to draw and spin the yarn carefully, which results in a strong yarn without the risk of breaking it in the process. It is a simple process the repeats itself multiple times as more and more fiber is added. In 1825, Richard Roberts had patented his self-acting mule, which would not need any manpower. The self-acting mule contained all the previous parts, but Roberts had added mechanisms like levers, inclined planes, faller wire, etc. Also, this mule worked the same way as the first model, but instead the speed of the spindle was controlled by weighted ropes that twisted the drum and turned the spindles. Moreover, he created a reversing mechanism that unwinded the spiral of yarn on the spindle before winding a new thread. Today, there are many different ways to spin thread, and the oldest technique or machine used today are the Ring spinning mules. The can spin the widest range of yarn out of flax, cotton, wool, etc. Although, its process is slower and more time consuming compared to the other modern spinning systems. This machine’s main parts consist of the roving, rotating spindle, drawing rollers, and the bobbins. The process of spinning the yarn is quite short and simple, but the full process, including off-machine steps, take way longer. Firstly, the mass of the roving is reduced using the drawing rollers. Then it is twisted for strength and sturdiness and wound around a bobbin. It is wrapped around the bobbin to make storage, transportation, and processing easier and more productive.
Sara