File:The street railway review (1891) (14573422547).jpg

Identifier: streetrailwayrev07amer (find matches)
Title: The street railway review
Year: 1891 (1890s)
Authors: American Street Railway Association Street Railway Accountants' Association of America American Railway, Mechanical, and Electrical Association
Subjects: Street-railroads
Publisher: Chicago : Street Railway Review Pub. Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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through the overhead wooden box tothe opposite ends of the plow. The two shears are of jg-in. steel 36 in. wide and 8 ft. long, and are placed stiuarelyacross the track, one at each end. Each shear may be raised The steel plows ser\e to scrape the snow from the road-way and it is then blown out of the way by the current ofair supplied by the fan. The air pressure required to blowthe snow any given distance is very easily regulated by thewind gate which is operated by the small wooden levershown. The two ends of the plow are duplicates and eachblows the snow to the right as the line is double track. Where the pavement is above the rail the snow remainingon the rails is taken care of by adjustable steel scrapers thatfit the rail, and blown to one side by air delivered throughthe hose shown. It will be noted that neither the snowremoved nor that remaining is packed. Back of the railscrapers and close to the wheels are the sand pipes. So long as the fan keeps the track and rails clear the
Text Appearing After Image:
PNEUMATIC SNOW PLOW, ATLANTA, GA. and lowered by means of a vertical screw at the end of theplatform. In addition it is suspended on links so that it willswing Viackward and upward in case it strikes an obstruc-tion, such as a guard rail or the pavement. The backwardmovement is resisted by springs which ordinarily hold thesheet to its normal position, and at the same time serve locushion the blow when an obstacle is struck at high speed.The fan is a steel disk with the wings securely rivetted inplace and is mounted on a shaft 5-in. in diameter. The fancase is built of three thicknesses of matched Hooring with astrip of sheet iron around the outside lo keep it in shape.The fan is driven l>v two 30-h. p. Westinghouse motorswhich may be connected in series or in parallel as required.Two internal gears are shrunk onto the fan shaft and gearwith the motor pinions so that no change whatever need bemade in the motors, and the latter mav be changed in a fewminutes. plow is easily propelled

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