. American engineer and railroad journal . GENERAL VIEW OF AUTOMOBILE DYNAMOMETER SHOWING LARGE PENDULUM, FRICTION BRAKE AND APPARATUS BELOW THE FLOOR. Since horse-power is a function of speed and tractive effort,both of which are shown on the chart, it was a comparativelysimple matter to lay out curves showing the different horse-powers for all different conditions, which will permit the instantreading of the horse-power being delivered at the rear wheels bynoting the point at which the two moving scales intersect. The instrument showing the grade which could be climbed atthe speed in
. American engineer and railroad journal . GENERAL VIEW OF AUTOMOBILE DYNAMOMETER SHOWING LARGE PENDULUM, FRICTION BRAKE AND APPARATUS BELOW THE FLOOR. Since horse-power is a function of speed and tractive effort,both of which are shown on the chart, it was a comparativelysimple matter to lay out curves showing the different horse-powers for all different conditions, which will permit the instantreading of the horse-power being delivered at the rear wheels bynoting the point at which the two moving scales intersect. The instrument showing the grade which could be climbed atthe speed indicated is controlled by the same cables showing thetractive effort on the chart and consists of a pointer fulcrumedat one end and operated from the horizontal cross piece by aclamp which can be set at the proper weight for the car and itsoccupants. This scale is laid off proportionally to the sine ofthe angle of the grade, which equals the tractive effort in poundsdivided by the weight of the car in pounds, both to the samescale. A large motor is provided below the floor, which can be thrownon to
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
