rotary plough BrE
rotary plow AmE

Note 2: Rotary plough blowers by Boschung Schmitten on downhill end, double plough blades in 'V' formation at uphill end, mounted on underframe of L 401.

The men who attempted to clear the track, gave up within the first few hours: the rotary plows broke down, one after another.

Constant snow slides erase the work of diggers and rotary plows.

Send him a rotary plow.

Rotary snowplow list - lists rotary plows in existence, some of which are still in use today.

In the effort to reach the train, the railroad's snow-clearing equipment and snow-blowing rotary plows became frozen to the tracks.

In this journal he published his plans for the rotary plow, hot air ventilation system, and advertised his general patent agency run in connection with the paper.

(The Park Service does make a heroic effort to keep the litter cleared from along the highways but is handicapped because its rotary plows don't work well on paper and beverage bottles.)

P Map Not much of a park but notable for its display of a vintage narrow-gauge rotary plow and the locomotives that powered it up the famed, rugged, gut-wrenching Boreas Pass railroad (that track is one of the last remaining swatches) to keep gold-mining production open.

The few remaining rotary plows are either owned by museum railroads, or are kept in reserve for areas with poor road access and routine severe snowfall conditions; the largest remaining fleet of rotaries consists of Union Pacific Railroad's six ex-Southern Pacific plows reserved for Donner Pass.