Road roller

device · 1860 · Industrial Revolution

A machine for compacting the surface.

What it is made of

• Diesel engine — has part. A diesel.
• Boiler — has part. The first rollers were steam-driven.

Principles and materials it uses

• Pressure — uses. Compaction.
• Cast iron — is made of. The roller is cast iron.

History: what it evolved from and what it influenced

• Watt steam engine — evolved from. The first rollers were steam-driven.

Take Road roller apart

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