The Cathedral of Commerce the Highest Building in the World
The book The Cathedral of Commerce the Highest Building in the World was written by author Edwin a Cochran Here you can read free online of The Cathedral of Commerce the Highest Building in the World book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Cathedral of Commerce the Highest Building in the World a good or bad book?
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To show the extreme caution of these inspectors, a remarkable test was made in the plant of John A. Roebling's Sons Co. With a set of six hoisting cables condemned and taken from an elevator after three years of active service. The one most worn of these cables was placed upon a powerful testing machine to determine the weight it would sustain before pulling apart. It broke only after assuming a burden of 16, 600 pounds; hence the total carrying strength of the six condemned cables was at least... 99, 600 pounds. As the maximum weight of an elevator and its passengers is about 6, 000 pounds, it will be seen that these cables were, by actual test, still strong enough to safely handle sixteen times the maximum weight of a loaded elevator. "Safety first" and always is the watchword in the operation of this vertical railway system. While the cars travel at great speed, the maintenance is so closely watched and cared for that they move along almost unnoticed no quivering, no vibration, no sound whatever, absolute smoothness and safety.
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