e path of the carrier ; and, when the lat - down to the second floor ter strikes against the below, where they pass to frame, the frame, while the centers of the book bearing against the end of stacks and up vertical the carrier, travels up the shafts to the top of the inclined rails until the car-… … strips as it approaches the rails, to insure the the terminals and two minutes in the tunnel. MAIN TRACK OF THE LIBRARY-CAPITOL CARRIER. rails’ entering the grooves. By the use of ball bearings, the power required In a compartment in the is reduced to five horse back of the carrier are power. An…
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