Also known as chain bucket excavator
thumb|ThyssenKrupp|Krupp coal stacker featuring tripper conveyor and non-slewing, luffing boom at RTCA Kestrel Mine|300px 300px|thumb|Stacker at Garzweiler surface mine
via Wikidata · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).