Drop hammer. Computer artwork showing the structure of a drop hammer. The hammers are raised by ledges on a cam (upper right). As the cam rotates,the ledges push down on the end of the hammers,which pivot on the bar at centre,causing the heads to raise. As the cam rotates further,the ledges release the hammer ends allowing the hammer heads to fall | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Lunau, Claus |
Taille de l’image : | 4181 px × 4181 px |
Model Release : | Non requis |
Restrictions : | - |