Door closer

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

A door closer is a mechanical device that regulates the speed and action of a door's swing. Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior.

Excerpt from the Wikipedia article “Door closer”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: MB-one, CC BY-SA 4.0, via Wikimedia Commons.