Steel production: Forge,A with bellows to produce draught. Foreground bars are being hammered with mechanical hammer. Power source (probably water) out of picture on left,but tappets on revolving barrel would raise hammer for next blow as they engaged with a trip mechanism. After hammering bars are being slaked in water. Agricola De re metallica Basle 1556. Woodcut | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / UIG / Universal History Archive |
Taille de l’image : | 3205 px × 5453 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |