tumbling barrel
tumbler

Because the third motor continued to run at full output, the cutter fell into a tumbling barrel roll.

Rocks are placed into a tumbling barrel with with varying degrees of abrasive grit and or water.

A tumbling rough is placed into a tumbling barrel with abrasive grit and water, this initial procedure is called the Coarse Grind.

Centrifugal barrel tumbling uses a tumbling barrel at the end of a rotating arm to add centrifugal forces to the barreling process.

U.S. Patent no. 702,040, "Sand-blast tumbling barrel" (attributed to "Benjamin C. Tilghman Jr.")

A powder mill could be driven by wind or water power, and contained rollers for grinding the ingredients of gunpowder together, as well as presses and tumbling barrels and sieves for compacting, granulating, and grading the powder.