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Scientific American, Vol. 31, No. 24 (December 1874) (1874)

leaf 9

An illustration from Scientific American, Vol. 31, No. 24 (December 1874), 1874, leaf 9
e weight of heavy masses is not always known; and men and are capable of packing into a small space for easy tran- [ in diameter weighs as nearly as possible ifeth of a pound ;: are adt to risk a catastrophe rather than stop work or wait for sit. At the top is a head of open wirework, crowned with… … side the burner with a loud roar, contin SAFETY CATCH FOB CRANES. tioned. So long, therefore, as the © 1874 SCIENTIFIC AMERICAN, INC.

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