Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 790
Fig. 7.—Railroad iron vault. … Maivin safe. Ornate doors of openwrought-iron work areprovided for use duringbusiness hours. The vaultof the Chemical NationalBank of New York City isillustrated in Figs. 5 and6. The vault occupies twofloors, and weighs, exclu-sive of the masonry, almost200,000 lbs. Both upperand lower vaults are…
Mechanical engineering
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