. Cassier's magazine . scharge terminal,which is ample for the line to runby the gravity of the descending ore,developing, when uniformly loadedthroughout its length, an excess ofpower over the amount actually re-quired to run the line, which variesaccording to the output of ore andamount of back freight carried. From the loading terminal to thefirst support the line makes a span ofabout 950 feet across Mule Gulch,then ascends a mountain slope, reach- branch by intervening lines of sus-pended rails on either side, overwhich the carriages run with thependant buckets without interruptionor atten
. Cassier's magazine . scharge terminal,which is ample for the line to runby the gravity of the descending ore,developing, when uniformly loadedthroughout its length, an excess ofpower over the amount actually re-quired to run the line, which variesaccording to the output of ore andamount of back freight carried. From the loading terminal to thefirst support the line makes a span ofabout 950 feet across Mule Gulch,then ascends a mountain slope, reach- branch by intervening lines of sus-pended rails on either side, overwhich the carriages run with thependant buckets without interruptionor attendance. There is quite a sharpridge at the summit where this struc-ture is located, and the rails, whichare curved to conform to the ground,cover a sufficient length to make aneasy transition of the carriers fromone grade to the next. The down-ward pressure of the traction ropehere is very heavy, hence rails aresubstituted for the track cables, whichwould soon wear out if subjected tosuch a pressure. AERIAL TRAMWAYS 379. ANGLE AND OPERATING STATION OF THE SUMMIT OF THE MOUNTAIN. Passing on, we come next to anangle station, where the line makes ahorizontal bend of 2i1/^. degrees andwhere the operating machinery is in-stalled. This station is located at theopposite brow of the mountain top,1,900 feet from the summit and 58feet below it. From this station tothe discharge terminal, a distance of12,320 feet, the fall is 1,891 feet,passing over ground of the most rug-ged nature, as indicated in the ac-companying views. The angle station practically con- stitutes the connection of the twosections into which the line is heredivided, each with an independenttraction rope operated from oneof the two horizontal grip wheelsmounted on the main shaft. Thecarriers, as they arrive loaded orempty from either section, are de-tached from the traction rope of thatsection and run by gravity along theline of suspended rails on either sideto the opposite end of the station,where they are re-gripped to
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyork, booksubjec
