Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1975-11-12
1978-02-21
Schaefer, Robert K.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
B66B 118
Patent
active
RE0295434
ABSTRACT:
An elevator control system for a group of cars in which the control of the cars is transferred in response to traffic conditions from a mode of operation in which the cars are successively started from a terminal in response to the generation of timed dispatching signals to one in which they are started in response to the registration of calls. During the latter mode of operation the cars are distributed throughout that portion of the building they serve whereby one car is parked at the top terminal, one at a landing called the middle free car parking floor and the remainder at the bottom terminal. In these circumstances, the top terminal car serves calls at that landing, the middle free car serves calls at landings between the bottom and top terminals and one of the bottom terminal cars serves calls at that landing and at any basements below it.
The cars are capable of high and low call reversal at any landing and the assignment of the cars as middle free car and active bottom car can be transferred if the active bottom car travels above a certain landing.
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Duncanson Jr. W. E.
Mayer Robert T.
Otis Elevator Company
Schaefer Robert K.
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