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Vibrating Gemstone Polisher.
Vibrating Gemstone polisher do the job in half the time as tumblers.
This design is basically a shaker table, with a platform, which holds the rock bowl, suspended on four coil springs and vibrated by eccentric weights on a rotating shaft attached to its underside.
Three pages ( 2 sheets - front on first, front and back on second sheet )
B & W photos, illustrations, expanded views, and instructional narrative.
My plans are from original source materials such as books, magazines and other publications and the pages are carefully removed.
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