An operator sits in a cab above and behind the blade assembly to control the speed of the blades and the direction of output from the chute. The chute can be adjusted to throw the snow to either the left or the right side of the tracks. The blades on this wheel cut through the snow and force it through a channel just behind the disk to an output chute above the blade assembly. An engine within the plow's carbody rotates the large circular assembly at the front of the plow. Many rotary plows are not self-propelled, so one or more locomotives are coupled behind it to push the plow along the line. The ability to operate slowly, as there is no requirement for train momentum to break up the snow, is often an advantage in mountainous regions, where a high speed derailment could be disastrous. Rotary plows are often deployed when snow is too deep or hard-packed for traditional plows. Operational rotary snowplow Xrotd 9213 of Rhaetian Railway
For this purpose, the rotary snowplow was devised. Deeper drifts cannot easily be cleared by this method there is simply too much snow to be moved. These pushed snow off the tracks, deflecting it to the side. Wedge snowplows were the traditional mechanized method of clearing snow from railroad tracks. He is listed in US patent 1848554 (filed in 1929). Īnother inventor is said to be Colonel Lewis P. Leslie Brothers contracted with Cooke Locomotive & Machine Works in Paterson to do the actual construction. Jull later sold his design rights to Leslie Brothers, who formed the Rotary Steam Shovel Manufacturing Company in Paterson, New Jersey. During the winter of 1883–84, Jull contracted with the Leslie Brothers of Toronto to build a full-size prototype that proved successful. Orange Jull of Orangeville, Ontario, expanded on Elliot's design, building working models he tested with sand. He never built a working model or prototype. The rotary was invented in Toronto, Canada, by dentist J.W.
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