Free and Discounted Ebooks
Join 130,000 readers! Get our ebook deals straight to your inbox.

Harper's Round Table, August 6, 1895

Cover image for

Download


Author: Various Authors
Published: 1895
Language: English
Wordcount: 26,803 / 83 pg
Flesch-Kincaid Reading Ease: 72.9
LoC Category: AP
Downloads: 474
Added to site: 2010.07.06
mnybks.net#: 28393
Origin: gutenberg.org
Genre: Periodical
Excerpt

joint expand and contract three-eighths of an inch, and even when a carriage passes on the roadway you can see it move a little. These slip joints are necessary chiefly because of the heat and cold. In summer the cables are fifteen inches longer between the towers than in the winter. The bridge structure is cut in two in the middle, and an arm is fastened to one of these ends. It slips into an opening in the other end, and moves back and forth as any expansion or contraction occurs. I noticed one day last winter, when the greatest crush in the history of the bridge occurred, and when it was estimated that 2500 tons of human beings were distributed along the bridge at one time, that this slip joint in the middle was drawn out at least fifteen inches because of the unusual weight. As each cable, however, is intended to sustain a weight of 12,000 tons, this great crush was a small matter. Still, the constant motion of the bridge that seems so solid and inflexible is well worth studying.

I am also very fon

SUBSCRIBE TO MANYBOOKS 

FREE EBOOKS 

Join 120,000+ fellow readers! Get Free eBooks and book bargains from ManyBooks in your inbox. 

We respect your email privacy

(advanced)
login | register

User ID

Password

reset password