
Gold mining Rocker box (cradle) - The Gold Seekers
One of the most popular pieces of equipment used during gold rush times in XIX century was a rocker box, sometimes called a cradle. Collier's New Encyclopedia from 1921 defines this device as a mechanical contrivance used in placer mining, consisting of a box on rockers and moved by hand, used for washing out the gold-bearing soil.. Rocker allowed to separate gold and other heavy elements …