. The street railway review . up at it was decided to spare no time or expense to place the roadin such a condition as to be equal to any emergency. The value of a snow plow lies in the weight available for ad-hesion and in its power; these two factors have been carefully ob-served in the cpnstruction of this plow. The total weight of thisplow is 20 tons, distributed as follows:^ the body, 4 tons; noses,J tons; trucks and motors, 14 tons. Adding to this 10 barrelsof salt and sand that will be carried, 3 tons more, gives a totalweight of 23 tons on the wheels. There being eight driving w
. The street railway review . up at it was decided to spare no time or expense to place the roadin such a condition as to be equal to any emergency. The value of a snow plow lies in the weight available for ad-hesion and in its power; these two factors have been carefully ob-served in the cpnstruction of this plow. The total weight of thisplow is 20 tons, distributed as follows:^ the body, 4 tons; noses,J tons; trucks and motors, 14 tons. Adding to this 10 barrelsof salt and sand that will be carried, 3 tons more, gives a totalweight of 23 tons on the wheels. There being eight driving wheels,the weight on each wheel will be lb. The etiuipment consistsof four G. E. 1,000 motors with 4-turn armatures; the shaft ofeach armature carries a 22-tooth pinion which meshes into a 62-tooth gear, giving a speed reduction of The plow, including the trucks, was built by Polard & Grothe,o( VVohurn, Mass., who arc to be congratulated upon thethoroughness of their vvtirk. The trucks were designed especially. INTERIOR OF CAB. for this work and combine strength and durability with the mini-mum number of parts. The body rests upon a stationary bolsterwith the usual circle and recess at the center, chafing plates at theends of the bolster and at the corners of the trucks. There areno springs used except those on top of the journal boxes and in thesuspension. The truck is enclosed by a steel frame which completely envelopes (he motor wheels and brake rigKi>K. thu^ preventing anysnow from falling back in between the wheels. The trucks haveIkniis wheels on a 3K-in. axle, kcy-scated for G. K. 1,000 r)r 50 motors. Ice cutters or iliggers are fastened directly to the truck, en-suring a gooil ^roniul nl :dl linn- and also allowing ihcm
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
