Positive effect

Counterweight: 55,000 x sin 54 deg.35' (incline of lower run)

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3 (rope gear ratio) 14,940 lb.

Weight of piston and chariot: 33,060 x sin 54 deg.35'

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12 (ratio) 2,245

Power: 156 p.s.i. x 1,134 sq. in. (piston area)

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12 (ratio) 14,742 31,927 lb.

Excess to overcome friction 2,665 lb.

_The Roux, Combaluzier and Lepape System_

Elevator Systems of the Eiffel Tower, 1889 · 第 22 / 27 题