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 912
ss the levers beyond the fulcrum are imiversal bars,each of which covers half of the levers, one at one side of the machine, and one at the other.Thus, when the keys on the left are touched, the left universal bar is raised, and when thekeys on the right are touched, the right universal bar is… … Fig. 5.—Crandall type-cylinder machine. po-sition over the levers, so that when any key is jjressed, its stem will rise as a stop directlyover that lever, preventing the wheel from turning past this point. As the type are placedupon the wheels to be guided by this action, each type presents itself…
Mechanical engineering
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