Traption Bakery

A curio for some or a right old puzzle for others, make no mistake. Some say: some folk actually managed to bake a loaf of bread using this confounded contraption... but that's rumoured to be just a rumour. There's no pressure... relax, ponder, prod, clank, crank, pull, push, watch... ponder more....sleep on it... come back to it... ponder.