There are any types of looms other than those previously discussed. The drawloom and the jacquard loom both allow a weaver to weave a complex pattern without manually lifting individual threads. First, a description of harnesses. A loom that makes four sheds (remember: that’s the space that allows the shuttle to pass through )allows a weaver to construct more complicated patterns than one with two. An eight harness loom allows more variation than four. The compound harness loom, also described as a staggered harness loom, allows a loom to function as though it has many many harnesses. The invention has been ascribed to many different countries but it certainly appeared in China, allowing weavers to create silk brocade. Drawlooms required an assistant to sit on top of the harness and pull the heddles that controlled the pattern in the proper order. The assistant was call the drawboy (or sometimes the drawgirl Can you imagine that job?).Pre-constructed patterns were required to produce the desired result.
The modern handweaver does not use any of these. Try to imagine putting your child on top to pull the heddles. Yikes!