Abstract:
A safety gate (24) is slidable vertically from an upper position at an elevator cab landing (22) where it obstructs movement of the elevator cab (20) into a hoistway, and a lower position that permits cab travel between a car frame (29) and the landing. An actuator (42) normally urges the gate upwardly; the actuator is moved by a cam assembly (35) on an approaching elevator car frame so as to slide the gate (24) downward, out of the way of cab motion.
Abstract:
A plurality of express shuttle elevators S1-S4 exchange elevator cabs at a transfer floor 26 with local elevators L1-L10 by means of a carriage 107, the casters of which 93 are guided by tracks 70-83. The transfer floor has linear induction motor (LIM) primary segments 60-67 disposed on the transfer floor; the carriage has a LIM secondary 128 thereon for propulsion. The carriages can be locked 91, 92 to the transfer floor for loading, and cabs can be locked 131 onto the carriages for stability when being moved. A controller (Figs. 10-13) keeps track of the progress of the cabs from one elevator to another.
Abstract:
Horizontally moveable elevator cabs A-E are transferrable between the car frames (72) of two elevators HI, LO in adjacent hoistways which extend between at least three levels (GND, MID, SKY) of a building, and between the car frames and landings L, R at said levels. The vertical movement of cars in the hoistways is synchronized, and transfer of elevator cabs between landings and car frames is simultaneous.
Abstract:
A plurality of express shuttle elevators S1-S4 exchange elevator cabs at a transfer floor 26 with local elevators L1-L10 by means of a carriage 107, the casters of which 93 are guided by tracks 70-83. The transfer floor has linear induction motor (LIM) primary segments 60-67 disposed on the transfer floor; the carriage has a LIM secondary 128 thereon for propulsion. The carriages can be locked 91, 92 to the transfer floor for loading, and cabs can be locked 131 onto the carriages for stability when being moved. A controller (Figs. 10-13) keeps track of the progress of the cabs from one elevator to another.
Abstract:
Elevator cabs (A,B) are transferred between elevators, which may be shuttles, in various levels of a building, such as transport floors, in response to car calls registered in the cabs and hall calls registered on the transport floors. The cabs may be transferred from carriages (107) or bogeys onto elevator car frames (104) in a lateral direction, which is perpendicular to the motion of the cab on a carriage (107) or bogey, or in a longitudinal direction which is the same as the direction of motion of a cab on a carriage or bogey. The horizontal/vertical control and transfer may be effected in response to the arrival at transport floors of elevators having cabs therein, or in response to the arrival at an elevator of a bogey carrying a cab which must be transported between a transport floor on one level of a building and a transport floor on another level of a building, in order to serve the need of a car call registered therein or a hall call. The horizontal transportation may occur on transport floors within a building, or may extend between different building segments or between different buildings.
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:
An elevator safety brake for stopping an elevator car is provided with a brake shoe (25) having a molybdenum alloy friction surface (32) for contacting an elevator guide rail surface (16) to provide a stopping force. The molybdenum alloy contains 99.4 weight percent molybdenum, 0.5 weight percent titanium and 0.1 weight percent zirconium. The friction surface of the brake formed from the alloy exhibits a consistent high friction and low wear suitably accommodating high speed, high load elevators installed in very tall buildings.
Abstract:
Elevator cabs A-C move upwardly through three or more contiguous overlapping hoistways 38-40 in the upper decks of double deck car frames 41-43, and move downwardly through the hoistways in the lower decks (or vice versa). To switch between decks, the cabs are offloaded from the hoistways into auxiliary elevators 50, 51 at the terminal ends of the shuttle, and are moved to be adjacent to the other deck by the auxiliary elevator and loaded thereon for the trip in the opposite direction. A second embodiment has additional auxiliary elevators 64, 65 and additional cabs D, E so that loading and unloading of passengers do not delay movement of the cabs in the hoistways.
Abstract:
A plurality of express shuttle elevators S1-S4 exchange elevator cabs at a transfer floor 26 with local elevators L1-L10 by means of a carriage 107, the casters of which 93 are guided by tracks 70-83. The transfer floor has linear induction motor (LIM) primary segments 60-67 disposed on the transfer floor; the carriage has a LIM secondary 128 thereon for propulsion. The carriages can be locked 91, 92 to the transfer floor for loading, and cabs can be locked 131 onto the carriages for stability when being moved. A controller (Figs. 10-13) keeps track of the progress of the cabs from one elevator to another.