By Mary J. Shapiro
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Extra info for A Picture History of the Brooklyn Bridge
Note the warning prominently posted for visitors starting their journey over the footbridge. By the middle of August several thousand people had crossed, including four-year-old Al Smith, Company as a whose father worked for the Bridge man suffered an be tied down until his guard. By September of 1877, after a on the footbridge and had to was finally stopped entirely. 76. Spinning the cables, 1877. On June 1877, the process of spinning the four main cables was ready to begin. Each cable would have 19 strands of 278 wires each.
Sinking the i Arrange Tent of Excavating Machinery. BROOKLYN CAISSON. -«er w A R0EBUN&. H K 3B,-,i : fig. 32). This drawing is one of over 11,000 engineering drawings and blueprints discovered in 1969 in a Department of Transportation Pressure/ Gauge •= Exit £4 ( |coni[irebsed- u air carpentry shop located in Brooklyn, near the Williamsburg Bridge. These drawings document, step by step, the entire construction of the Brooklyn Bridge. Five hundred or more are signed by Washington Roebling himself.
Section of tower, showing saddle plates and lowering of strand into position. Additional rollers were located beneath the saddle plate. These made the saddle movable to allow for variations of stress on the cables so they wouldn't slip, chaff or exert any lateral strain on the towers. In fact, however, the rollers never worked. Because of the tremendous weight of the cables, the rollers soon became embedded in the iron plate on which they rested. However, the towers were saved from damaging lateral strain by the wooden caissons which provided their foundation.