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AssigneeOtis Elevator Company
InventorsDavid W. Barrett, John F. Cassidy, Jr., George A. L. David, Ernest P. Gagnon, Richard E. Peruggi
Estimating the term…
An elevator system has a plurality of elevator cars traveling upwardly in one hoistway and downwardly in an adjacent hoistway, the cars being propelled in a series of overlapping segments, each segment including a pair of couplers roped to counterweights and driven by elevator traction machines. A variant uses a closed loop rope with a pair of couplers to transfer elevator cars from a counterweighted coupler of one segment to a counterweighted coupler of an adjacent segment. An upper passenger landing moves cars on overhead trolleys and a lower passenger landing moves cars on dollies to take them from a hoistway through unloading and loading stations and back to another hoistway. The elevator car roller guides are releasable to permit lateral movement of cars to and from landings. A latched spring buffer and/or a LEM decelerate and accelerate unbalanced counterweights.
An elevator system comprising:
An elevator system comprising:
A buffer for decelerating and accelerating an elevator counterweight in an elevator system having a selectively engageable car coupler roped through a traction machine to said counterweight, comprising:
A buffer for decelerating and accelerating an elevator counterweight in an elevator system having a selectively engageable car coupler roped through a traction machine to said counterweight, comprising:
Dependencies are inferred from the claim text.