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Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)

D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 315

An illustration from Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts, 1880, leaf 315 — -terbalance lever is in its lower or depressed position (instead of lifted, as shown in the cut). Hav-ing properly set the lock, the user closes the door to which it is attached, throws the gang-bolts intothe forward or locked position, and locks the combination or key-lock which usually also… … LOCOMOTIVE. 303 to come in contact with the two rollers on the opposite ends of the yoke, and thereby lift the yokeand the counterbalance lever and sliding block, and thus close the lock. So long as the pins whichare pushed in remain beneath the rollers, the lock remains closed ; but the continued…

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