. Operation of trains and station work and telegraphy . t as faras it will go, which raises the armature (Figure 123-J)up to the magnets (Figure 123-K), transferring the cur-rent from the bell kL to the magnet (Plate 9, K-88),closing the circuit as shown in red on Plate 9, and at thesame time closing the circuit on 360-K, shown in greenon Plate 9, after which the preliminary spindle handle(Figure 120-B) is permitted to automatically return toits normal position. This unlocks the revolving drum( Figure 123-C) and indicates the fact by displaying awhite instead of a red disc in the indicator at
. Operation of trains and station work and telegraphy . t as faras it will go, which raises the armature (Figure 123-J)up to the magnets (Figure 123-K), transferring the cur-rent from the bell kL to the magnet (Plate 9, K-88),closing the circuit as shown in red on Plate 9, and at thesame time closing the circuit on 360-K, shown in greenon Plate 9, after which the preliminary spindle handle(Figure 120-B) is permitted to automatically return toits normal position. This unlocks the revolving drum( Figure 123-C) and indicates the fact by displaying awhite instead of a red disc in the indicator at Figure122-H. The operator now moves the end staff (Figure120-E) up the vertical slot into engagement with thedrum (Figure 123-C), the outer guard (Figure 122-N)having first been turned to the right position, revolves thelatter through a half turn, using the staff as a handle,and finally withdraws the staff through the opening atFigures 120 and 124-M. In making the half turn thedrum (Figure 123-C) has reversed the polarity of the STATION AND TRAIN WORK. FIG. 121. ABSOLUTE STAFF View with Cover Removed Showing Armature Dropped. 400 RULES FOR MOVEMENT OF TRAINS
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Keywords: ., bookcentury1900, bookdecade1910, bookidopera, booksubjecttrainmen
