. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . o all weathers, and which can be main-tained on a reasonable stop signal requires no surprisetests to prove that railroad men areefficient; it is simply a safeguard againstpossible mishap, and, like the so-calleddead mans handle on the controllerapparatus of an electrically driven car,it does not destroy individuality; itsaim is to sharpen attention to duty,and, as far as man-made devices canact, to eliminate the possibility ofhuman shoT. that automatic train stop-
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . o all weathers, and which can be main-tained on a reasonable stop signal requires no surprisetests to prove that railroad men areefficient; it is simply a safeguard againstpossible mishap, and, like the so-calleddead mans handle on the controllerapparatus of an electrically driven car,it does not destroy individuality; itsaim is to sharpen attention to duty,and, as far as man-made devices canact, to eliminate the possibility ofhuman shoT. that automatic train stop- l<-hni;iry, 1906. RAILWAY AND LOCOMOTIVE ENGINEERING 53 ping has appealed to operating may say that when Mr. Frank Hul-ley, general manager of the Intcr-borough Rapid Transit Company ofNew York, was general superintendentof the Chicago Elevated, he devised. closed again, the reverse order of in-terlocking lever movement (finishingwith the dropping of the air brake trip,and tlic lowering of the danger signal)guaranteed the continuity of the signals and the automatic stopping. AUTOMATIC STOP DEVICE USED ON THE BOSTON ELEVATED, ^IU>\V1^■(;TKIP AIR WITH HANGING HANDLE. without patenting, an automatic trainstop which was used on the approachesto two river bridges in that city. The ap-paratus was similar in principle to thosewhich we have referred to, but was usedin connection with the interlocking in-stallation at the bridges. The system was briefly that the bridgetender was powerless to move the swingspan until it had been unlocked at eachend by towernien, who were at all timeson the elevated structure. These mencould only unlock the bridge after theyhad blocked the road. The sequence oflever movement was devised with muchcare, and it was impossible to use thelevers except in the predetermined or-der; this means that the danger sig-naling and the absolute blocking of therailway line was assured before the con-tinuity of the track could be in
Size: 1787px × 1398px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
