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 792
Fig. 10.—Marvin flre-proof construction. SANDPAPERING MACHINES. 7G3 … Flu. 11.—Fire-proof construction. and angles. The front and back frames are made solid, with welded oorners, and thebody between these frames is a solid hoop. The back plate is one piece, which is rabbetedinto the frame. Bank safes and vault doors are constructed with outside plates 1 in. thick. A…
Mechanical engineering
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