. The street railway review . CHICAGO CITY RAILWAY DYNAMOMETER CAR. graphs of it. It is the design of W. G. Price, of the CityRailwav. The weight of the car is carried rigidly on fourwheels. The middle pair furnish the records. The latterare allowed a free up and down motion, and this up anddown motion is transmitted to recording pointers by a wirecord from the box of each wheel. For the purpose ofrecording the gage the middle pair of wheels are notmounted on the same axle, but each wheel is held outagainst the track so as to record variations in gage. This is. RECORDING POINTERS ON DYNAMOMETE
. The street railway review . CHICAGO CITY RAILWAY DYNAMOMETER CAR. graphs of it. It is the design of W. G. Price, of the CityRailwav. The weight of the car is carried rigidly on fourwheels. The middle pair furnish the records. The latterare allowed a free up and down motion, and this up anddown motion is transmitted to recording pointers by a wirecord from the box of each wheel. For the purpose ofrecording the gage the middle pair of wheels are notmounted on the same axle, but each wheel is held outagainst the track so as to record variations in gage. This is. RECORDING POINTERS ON DYNAMOMETER CAR. done by the second pointer from the left end. The dynamo-meter pull is recorded liy the pointer second from the rightend. A fixed pointer traces the zero line for the dynamo-meter record. The other records do not need zero pointer at the right end is for variation in height of is connected to the balance show on the right. Thisbalance has instead of weights at the end two plungersdipping into two mercury cups. These cups are of courseconnected by a pipe so that the niercur\ in the two willremain level. The revolving drum which carries the paperis geare<l to one of the truck axles by a light bicycle sprocketchain. .Mthough wheel wear is not as nnuh of a m\sler\ as itwas se\eral years ago and while nunh has been writtenabout it there are still some unexplained results in dealing with a few peculiarities which have comeunder the observation of one of the Rk\iew staff in histravels among master mechanics we will
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
