Weaving consists of passing a weft thread with the aid of a shuttle between two layers of warp thread. The interlacing of the two threads creates the cloth.
On this loom, which appears in the Encyclopédie Méthodique by Roland de la Platière, the warp threads are all parallel and rolled onto a cylinder. By pressing pedals on the loom, the weaver lifts the frames that in turn lift one part of the warp threads. He then takes a shuttle and passes it between the two layers of warp thread that have just been separated. Once the shuttle has been passed through by hand, the weaver tamps down the freshly interlaced threads by pulling a reed down. A new row is added to the cloth, which gradually takes shape in front of him.