Thesaurus Term/Concept: SPIDER
| Identifier | 140135 |
|---|---|
| Class | COMPONENTS |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A four-armed metal coupling, positioned at the centre of a windmill's sails, connected to the front of the striking rod and the shutter bars of all the sails, causing the shutters to open and close. |