bn:00023493n
Noun Concept
Categories: Mining equipment, Gold mining
EN
rocker  cradle  rocker box  gold cradle
EN
A trough that can be rocked back and forth; used by gold miners to shake auriferous earth in water in order to separate the gold WordNet 3.0
English:
mining
Definitions
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EN
A trough that can be rocked back and forth; used by gold miners to shake auriferous earth in water in order to separate the gold WordNet 3.0 & Open English WordNet
A rocker box is a gold mining implement for separating alluvial placer gold from sand and gravel which was used in placer mining in the 19th century. Wikipedia
Any implement or machine working with a rocking motion, such as a trough mounted on rockers for separating gold dust from gravel, etc., by agitation in water. Wiktionary
DERIVATION
WordNet 3.0 & Open English WordNet
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Wiktionary
EN
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