Abstract:
The hoistways of passenger shuttle elevators are provided with freight landings (78) adjacent commercial businesses in the higher floors of a tall building; passenger cabs (71) are exchanged for freight containers (73) on the car frames (48) of the shuttle elevators, and the shuttle elevators are utilized to move the containers of freight from a freight receiving area (68) at the lower end of the building to the respective freight landings (78). In one embodiment, a ballast weight (80) is loaded onto a car frame as a container of freight is offloaded from the car frame so that the car frame may return to the freight receiving area for another container of freight, without the elevator being misbalanced. Another embodiment utilizes one of two decks for carrying containers of freight while the other deck carries an empty passenger cab, thereby to reduce the difference between the heaviest and lightest that the car frame will be as it returns empty to the freight receiving area for a subsequent container of freight. Another embodiment uses compound or other extensive roping and an extra large traction machine to permit returning a totally empty car frame to pick up a subsequent freight container.
Abstract:
A plurality of elevator shuttles (1-10) are dispatched in a sequence at regular intervals which extend across the average round trip run time for all of the shuttles, by enabling a shuttle to run (101, in response to the shuttle being ready to run (96) following expiration of a dispatching interval (97) which equals the average run time of all the shuttles (91).
Abstract:
An elevator cab X is moved from alanding TL to a car frame (11) simultaneously with moving a cab Y from the car frame (11) onto a landing TR. Double deck car frames (11a) may be utilized with cars P, Q going in the opposite direction of cars X, Y as they are transferred between the car frame and corresponding landings.
Abstract:
Horizontally movable elevator cabs (22, 23) are transferred from the upper deck of a first car frame (26) to the upper deck of a second car frame (27) and from the lower deck of the second car frame to the lower deck of the first car frame. Three elevator hoistways, each with a double deck car frame are controlled by computer routines. A rack and pinion horizontal motive means, for moving the cab from car frame to car frame is also briefly disclosed.
Abstract:
An elevator car call is reassigned if a different car fortuitously shows up first, or if the assigned car leaves the group. The call is reassigned, one time only, if the assigned car is delayed by more than a threshold, or under certain circumstances, if the car is fully loaded without an intervening car call or the call has been waiting for more than a threshold time. The circumstances are that the weighted summation of membership values in fuzzy sets, indicating the degree to which the predicted waiting time for the currently assigned call is deemed long, the response time for a new call assignment is deemed small, and the improvement from switching the hall call assignment is deemed great, exceeds a threshold and each of the membership values exceeds its own corresponding threshold.
Abstract:
In response to a registered hall call, a car announcement is made when and only when an assigned car, of a plurality, has its RRT a calculated number of seconds lower than the car with the next lowest RRT to minimize actual waiting time wherein the calculation is performed as a function of the remaining response time of the assigned car, the waiting time of the passenger, and an RRT inflation factor which is an amount of deviation from the minimum expected remaining response time of the assigned car.