Abstract:
The present invention relates to an elevator door controller system for operating doors of an elevator car. The system includes a travelling cable for delivering DC power to the car. The car includes a power storage device for storing DC power from the travelling cable, a DC motor for operating the car doors, and an elevator door drive powered by the power storage device for driving the DC motor to operate the car doors.
Abstract:
A suspension work platform hoist system for raising and lowering a work platform is provided. The system incorporates at least one hoist attached to the work platform and in electrical communication with a hoist control system that may have a data transmitter to transmit data to a remote location, a data receiver to receive data from the remote location, and/or a monitoring and diagnostic system to monitor and record at least one of a plurality of operating characteristics of the hoist. The hoist control system may also include a GPS tracking device that transmit a hoist location and may prevent operation of the motor if the hoist location is not in an authorized area of operation. The hoist control system may further include a safety lock out system that requires authentication of an operator prior to the hoist control system causing movement of the hoist system.
Abstract:
An auxiliary device for operating a disabled elevator in case of emergency includes a pull cable and an action cable by which the disabled elevator can be raised or lowered to reach a desired floor. The pull cable is fastened at the top end thereof with one end of an application rod which is fastened pivotally at another end thereof in a control room located at the top of an elevator shaft. As the pull cable is pulled, an action rod is exerted on by the pressure of the application rod to disable the braking device so as to permit the elevator cab to be raised or lowered by a transmission box when the action cable is actuated.