Mounted on wood with felt covered cylinders....with sharp pins.
I have seen a "carding machine" on the Discovery channel this year (2007) and it explained how the carding machine works. It stretches out the material so that it can become thin and flat. This idea got Mr Charles Nicolas Plantron a US patent in 1875.
Wrapped in the famous
The inventor says that he prefers to arrange the cylinders his own way so that cleansed fibers are delivered to the "stripper N" as marked on the drawing.