. American engineer and railroad journal . hs about62 tons complete in working order. The interior finishing andfurniture are specially noticeable for their richness and sim-plicity. Paper Driving Mechanism.—The paper mechanism is driven,as mentioned above, from the forward axle of the rear axle was specially made and contains at its center a spiralgear which is integral with it. This gear meshes with a similarspiral gear keyed to a horizontal shaft, which runs forward adistance of about 21 ft., where it ends in a bevel gear. Here themotion is carried to a vertical shaft projecting


. American engineer and railroad journal . hs about62 tons complete in working order. The interior finishing andfurniture are specially noticeable for their richness and sim-plicity. Paper Driving Mechanism.—The paper mechanism is driven,as mentioned above, from the forward axle of the rear axle was specially made and contains at its center a spiralgear which is integral with it. This gear meshes with a similarspiral gear keyed to a horizontal shaft, which runs forward adistance of about 21 ft., where it ends in a bevel gear. Here themotion is carried to a vertical shaft projecting up into the casebeneath the case containing the recording apparatus. On theupper end of this vertical shaft is another bevel gear, whichmeshes with two gears running freely on a horizontal shaft,which will be seen in Fig. 5 projecting through the end of thecase and geared to the paper driving roll. On this shaft andsplined to it between the two bevel gears is a collar providedwith teeth which can mesh with corresponding teeth in the hub. /Mile Post ^Signal Towpi .ThrottleNotch--Steam Pressure E«T> y Reverse Lever Notch i 185^ Taken 8 ,, , J *3 /• Seconds 1— — - ■ -M> -lticnes -1 ^ Inches of Diag ^PiiBh or Pull Line -Palum Line or Line of no Pull FIG. 6.—SAMPLE RECORD FROM DYNAMOMETER. of either gear. The movement of this collar is controlled bya handle under the recording table. The adjustment is suchthat both gears can run free on the shaft or the splined sleevecan be meshed with either so as to drive the paper only in onedirection no matter which way the car is running. The paperis carried in large rolls, the supply roll being the upper one inFig. 5. From this the paper goes up through a slit in thetable over the top and below the recording pens, and then downthrough a second slit in the far end, under a guide roll backunderneath the table and then down vertically through the driv-ing roll and to the receiving roll, which is fric


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering