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| | SIDE - Online Information article about SIDE (Site not responding. Last check: 2007-11-01) |
 | | On the other hand, ground that would be difficult for the railway engineer, such as steep hills, deep valleys and turbulent streams, has no terror for the ropeway erector. |
 | | Should the two vessels increase the distance between them during the operation of conveying the coal bags, of which two, weighing 420 lb each, may be fastened to the carrier, the extra rope called for is obtained by slipping the upper strand from the drum; this increases the speed of the upper cable. |
 | | On the other hand should the distance between the vessels be reduced, this operation is reversed, the speed of the upper strand being reduced. |
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