. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ot show, and an incor-rect indication is given. The yellowlight, if seen through fog and steam, willassume a red tint, and when seen byitself, may not be of as decided a shadeas is to be desired, but as in either casethe light would be mistaken for colorsthat would mean stop, no dangerous con-dition would exist. From the trainmens standpoint the engineer can obey the indication of asignal, he must be able to see it, and ifthe speed of the train is to be high, theengineer must cither get a vie
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ot show, and an incor-rect indication is given. The yellowlight, if seen through fog and steam, willassume a red tint, and when seen byitself, may not be of as decided a shadeas is to be desired, but as in either casethe light would be mistaken for colorsthat would mean stop, no dangerous con-dition would exist. From the trainmens standpoint the engineer can obey the indication of asignal, he must be able to see it, and ifthe speed of the train is to be high, theengineer must cither get a view of thesignal far enough away to enable him toproperly control the train or else a dis-tant signal must be provided which willbe far enough away to enable him tobring the train under control in thespace between the distant and the homesignals. So long as the distant signalhad to be mechanically connected andworked from a lever in a tower, it wasnot practicable to properly work the dis-tant signal as far away as it should beput, but since power operated signalshave been perfected they are used and. ELECTRIC MOTOR .\ND MECHANISM OF CNION AUTOMATIC SEMAPHORE SIGNAL. use of the continuous light spectacle is agreat improvement over the 60 degreetwo-light casting or the single light cast-ing with a shield, for in one case a lightis shown to the engineer at all times,whereas with the use of a shield no lighti-; shown when the signal is half waydown and the lamp comes between open-ings in the two light spectacles. Of late years signal engineers and su-perintendents have recognized the ne-cessity of so locating a signal that itwill be put in the best possible positionto be seen by an approaching train andwhile a good view is not always to behad, the ground is usually very carefullygone over before a final location is fact is recognized that before an put as far from the home signal as maybe desired. Their cost is but little morethan that of the mechanical signal, andbesides be
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
