A curiosity in connection with the Edoux system was the use of Worthington (American) pumps ([fig. 40]) to carry the water exhausted from the cylinders back to the supply tanks. No record has been found that might explain why this particular exception was made to the “foreign materials” stipulation. This exception is even more strange in view of Otis’ futile request for the same pumps and the fact that any number of native machines must have been available. It is possible that Edoux’s personal influence was sufficient to overcome the authority of the regulation.
Figure 39.—Passengers changing cars on Edoux elevator at intermediate platform.
(From La Nature, May 4, 1889, vol. 17, p. 361.)
Figure 40.—Worthington tandem compound steam pumps, at base of the Tower’s south pier,
supplied water for the Edoux system. The tank was at 896 feet, but suction was taken from
the top of the cylinders at 643 feet; therefore, the pumps worked against a head of only
about 250 feet. (From La Nature, Oct. 5, 1889, vol. 17, p. 293.)
Figure 41.—Recent view of lower car of the Edoux system,
showing slotted cylindrical guides that enclose the cables.