Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 76
Abridge of similar form, 200feet long, spans Rock Creek in the City of Washington. The Eads bridge crossing the Missis-sippi, at St. Louis, employs for each span eight steel tubes of nineinches exterior diameter.Tubes large and small havebeen strengthened by adopt-ing the model of an old-fashioned… … A sulky in steel tubing. am
Inventions · Inventors
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