Using steam at high pressure to prepare hardwood for being bent into unnatural shapes has long been practiced, and is a regular occurrence in our wood craft workshops. New bell wheels are being manufactured constantly, and old bell wheels come in for re-soling and re-shrouding. After steaming for several hours the wood is clamped into formers while it cools and sets into the required shape. Bent sliders are made in a similar fashion, whereas old fashioned bent stays are cut from solid ash.
Here Kart releases the steam before dragging the soling from the steam tube and placing it into the circular clamps.