Baltimore and Ohio employees magazine (1912) (14575358237)

Identifier: baltimoreohioemp04balt (find matches)
Title: Baltimore and Ohio employees magazine
Year: 1912 (1910s)
Authors: Baltimore and Ohio employees magazine Baltimore and Ohio Railroad Company
Subjects: Baltimore and Ohio Railroad Company
Publisher: (Baltimore, Baltimore and Ohio Railroad)
Contributing Library: University of Maryland, College Park
Digitizing Sponsor: LYRASIS Members and Sloan Foundation



Text Appearing Before Image:
as boon pro- vided because of the flush platform con-struction at passenger stations. As afurther safety measure automatic sec-tionalizing switches were installed, butthese proved unsatisfactory and were dis-continued. To provide a continuous supply of cur-rent to the locomotives at double slipswitches, where the gaps are too great tobe spanned by the third-rail shoe, aspecial arrangement of movable third-railis used to avoid the necessity for over-head conductors. These consist of struc-tural T-iron located inside the crossingtracks, and at other points where thestandard third-rail would be fouled bytrains using the cross-over. In the op-erating position these rails are level withthe top of third-rail but normally are low-ered to the track rail level, in which posi-tion the current is automatically cut off.The rails are controlled fi-om the signaltower and are properly interlocked withthe switch levers. Electric operation is used only in theup-grade (oastbound) direction, the elec- I
Text Appearing After Image:
MOVABLE SECTIONS OF THIRD RAIL AT C HUSSOVERS. TmS IS THE ONLY INSTALLATIONOF ITS KIND IN RAILROAD PRACTICE THE HALTIMOHK AND OHIO KMPLOVKS MACAZIXh 29