. Canadian transportation & distribution management. t a plow wasrequired that practically could not breakdown and that would have sufficient powerand strength to cut its way through anysnow bank. His instructions were that hewanted a plow with knives of 2 in. armorplate and the rest in proportion. Authoritywas given the following spring for twoplows to these specifications, and arrange-ments were made with the Montreal Loco-motive Works for their construction. , Consulting Engineer of the Ameri-can Locomotive Co., was engaged to preparethe design, in collaboration with the writer,and


. Canadian transportation & distribution management. t a plow wasrequired that practically could not breakdown and that would have sufficient powerand strength to cut its way through anysnow bank. His instructions were that hewanted a plow with knives of 2 in. armorplate and the rest in proportion. Authoritywas given the following spring for twoplows to these specifications, and arrange-ments were made with the Montreal Loco-motive Works for their construction. , Consulting Engineer of the Ameri-can Locomotive Co., was engaged to preparethe design, in collaboration with the writer,and it was decided to modify the construc-tion of the regular rotary plows consider-ably. The writer had for some yearsbelieved that better results could be ob- Fig. i.—Early Leslie Type of Single Cutter Rotary Snow Plow. which in this view are photographed intheir working position. When not requiredthey can be folded back against the sides ofthe casing, the rods which hold them inposition being then removed. These photographs illustrate the develop-. in a slide is not only packed exceedinglyhard, but it is liable to contain trees androcks which aTe carried with it down themountain side. No plow can, of course,handle such obstructions, and when theyare discovered they are either pulled out orblasted away. There is, however, a verystrong pressure on every railway to openup the line in the shortest possible time,and to effect this the usual method ofoperating a rotary was to put two heavyengines behind it, run the plow engine asfast as possible and drive it into the cutat 8 or 10 miles an hour. As the plowslowed down it was drawn back, speeded


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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherdonmi, bookyear1913