Trip hammer and bell: what they have in common

1. Step 1. Trip hammer — evolved into — Steam hammer. The mechanization of forging.
2. Step 2. Steam hammer — has part — Cylinder. A steam cylinder.
3. Step 3. Cylinder — is part of — Piston pump. The piston moves in a cylinder.
4. Step 4. Piston pump — is part of — Diving suit. Air was pumped from the surface.
5. Step 5. Diving suit — evolved from — Diving bell. Individual equipment.
6. Step 6. Diving bell — has part — Bell. A body open at the bottom.

Open Evothings