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Scientific American, Vol. 6, No. 42 (1851) (1851)

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An illustration from Scientific American, Vol. 6, No. 42 (1851), 1851, leaf 0
he other during the revolution of the shafts. frame, in line, so that both have the same ax- pleasure of travelling with Messrs. Comstock, is; C and D are equi-distant, so are C’ and Those shafts which carry the type beds re- Quintard, Dennis, or Oakley can testify, and volve contrary to those… … of three times that distance. The citizens plane, so are the two last. Upen each part have now better beef for less money, and the of the said shaft, inside of the bearings, there farmers better prices and less expenditure. is acrank, E, All the cranks are of equal So Black Rock Suspension Bridge.…

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