Burr millstone

Burr´ mill´stone`

1.See Buhrstone.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Bowen purchased a sawmill, then added a three-story gristmill with two sets of French burr millstones. (As Marion Cook--who purchased the mill with her husband Neal in 1978--would later describe in "Living Twenty Years in a Historic Mill," these millstones were the best of their kind.
And the original French Burr millstones are once again grinding organically-grown corn to produce flour - just as they did in the mill's 19th-century heyday.
This is then fed slowly between two French burr millstones driven by electricity: water power was used until last year's dry summer caused the adjoining mill pond to run low.
On the top floor are two pairs of French burr millstones, the oak windshaft on which the sails rotate, and a huge brakewheel and tailwheel with wooden cogs.
"He owned six sets of rare old French burr millstones, each weighing about 3,400 pounds.