Joint discs and windlass: what they have in common

1. Step 1. Joint discs — is part of — Teddy bear. Movable limbs.
2. Step 2. Teddy bear — is made of — Wool. Plush.
3. Step 3. Wool — is part of — Spring mattress. A layer of wool or felt over the springs keeps them from being felt.
4. Step 4. Spring mattress — has part — Spring. A spring unit.
5. Step 5. Spring — is part of — Ratchet. The pawl spring.
6. Step 6. Ratchet — is part of — Windlass. A ratchet holds the load.

Open Evothings