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 789
neither drivenin or drawn out, and by reason oftheir peculiar con.-truction do notdevelop the structural weakness whichappears in former methods of spindleconstruction. In addition to the lockson both the outer and inner doors, eachdoor is equipped with a gravity device, to operate the instant the… … Fig. 5.—Vault, Chemical Bauk. New York. SAFES AND VAULTS. 761 are hung to compound hinges with a vertical part and two cross-arms. They operate in an anti-friction or ball-bearing cup, and are so arranged thatth? sag of the door may be easily taken up. The finishof the locks, bolt frames, and…
Mechanical engineering
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