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 791
the door. This works the attachmentand unlocks the strong bolts. It is arbitrary in its action, not depending upon springs orweights. Among the late improvements in safe manufacture, applied by Messrs. Herring & Co.. area new form of hinge, by which the tongued and grooved door is withdrawn… … Fig. 10.—Marvin flre-proof construction. SANDPAPERING MACHINES. 7G3
Mechanical engineering
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