Large spinning drive wheel and paper machine: what they have in common

1. Step 1. Large spinning drive wheel — is part of — Spinning jenny. A drive wheel with a handle.
2. Step 2. Spinning jenny — evolved from — Spinning wheel. Many spindles driven by one wheel.
3. Step 3. Spinning wheel — has part — Belt drive. The wheel is linked to the spindle by a cord.
4. Step 4. Belt drive — is part of — Paper machine. The wire moves on belts and rolls.

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