Examples of the present disclosure describe systems and methods of issuing certificates. One embodiment includes a non-transitory, computer-readable medium comprising computer executable instructions stored thereon, the computer executable instructions executable for receiving a certificate request from an online identity, wherein the certificate request validates a reputation of the online identity, analyzing the certificate request, based on the analysis, determining to issue a certificate, and issuing the certificate to the online identity.

A top module for closing off an elevator shaft of an elevator system has a first top module side wall and a top module ceiling, a first guide rail piece fixed by a bracket on the first top module side wall, and a drive unit connected to the first guide rail piece. The top module can assume an operating state and a transport state. In the operating state, the first guide rail piece and the drive unit assume operating positions, and a car of the elevator system can be moved in the elevator shaft closed off with the top module. In the transport state, the first guide rail piece and the drive unit assume transport positions that deviate from the operating positions.

An elevator system that may be ropeless is in a structure and includes a guide rail and a guide rail extension that may generally guide a car between a hoistway and a transfer station of the system. The rail extension may generally project telescopically downward from the first rail and toward the transfer station. The telescopic relationship between the guide rail extension and the guide rail may generally compensate for vertical structure compression that may occur over a period of time.

The invention relates to a method for constructing an elevator, comprising providing an elevator car; providing plurality of prefabricated hoistway modules to be piled on top of each other, each hoistway module bordering a hoistway space into which the whole elevator car or at least an upper or lower end thereof can be fitted to move; and piling said plurality of prefabricated modules on top of each other, such that the hoistway spaces of the prefabricated modules are vertically aligned forming a continuous vertically elongated hoistway where the elevator car can be fitted to move; and arranging the elevator car to be vertically movable in the hoistway. The invention also relates to an elevator obtained with the method.

An elevator system for supporting tubulars having one or more elevator links with internal passages disposed through the elevator links to provide communication to and from the elevator.

An elevator system includes a hoistway, the hoistway having a plurality of landing floors each landing floor having a landing floor door. One or more guide rails are located in the hoistway to guide one or more elevator system components along the hoistway. An absorber is located at a hoistway pit and is supportive of a guide rail of the one or more guide rails. The absorber is configured to absorb loads imparted to the guide rail due to vertical translation and/or compression of the hoistway. A method of supporting a guide rail of an elevator system includes locating an absorber in an elevator hoistway in operable communication with a guide rail of an elevator system. Vertically-acting loads are transmitted from the guide rail to the absorber via the absorber piston thereby increasing a fluid pressure in the housing chamber.

Foldable guide rail tracks in elevator systems having first and second rail sections each having a base and a blade and a rail connector rotatably connecting the first rail section and the second rail section. The rail connector has a first securing plate fixedly attached to the first rail section, a second securing plate fixedly attached to the second rail section, and a pivot rotatably connecting the first securing plate to the second securing plate. The first rail section is rotatable about the pivot relative to the second rail section from a folded state to an unfolded state, and, when in the unfolded state, the first base and first blade of the first rail section aligns with the second base and second blade of the second rail section to form at least a portion of a guide rail track.

Examples of the present disclosure describe systems and methods of determining online identity reputation. In aspects, an online identity of an entity may engage in online interactions. The content provided by the online identity may be accessed and analyzed to determine interaction characteristics and reputation metrics for the online identity. Based on the reputation metrics, the online identity and/or entity (and content therefrom) may be filtered from further online interactions. In some aspects, interaction data may be stored in a data store. An interaction mapping component having access to the data store may analyze the data store data to determine mappings between online identities, entities and interactions. In at least one aspect, an opt-in certificate system may also be provided. The opt-in system may provide an online identity or entity a certificate to securely validate identity.

A tensioning device and a tensioning method for a steel wire rope of a cage guide of an ultra-deep vertical shaft. The tensioning device comprises an upper rope clamping device, a rope adjustment guide frame, a lower hydraulic rope locking device, and a lower hydraulic rope adjustment device. The upper rope clamping device is provided with a rope clamp and a pressure sensor. The rope adjustment guide frame comprises a steel frame body, double fixed clamp-plates, a balance weight, and a balance weight steel wire rope. Double moving clamp-plates are disposed in a guide groove of the steel frame body. The double moving clamp-plates are provided with a rope clamp and a lower guide pulley. The double fixed clamp-plates are provided with an upper guide pulley. The balance weight is provided with a fastening joint. Each of the upper rope clamping device, the lower hydraulic rope locking device and the lower hydraulic rope adjustment device comprises a wedged iron block and a shim. Each of the lower hydraulic rope locking device and the lower hydraulic rope adjustment device further comprises a lever wedge adjustment mechanism and a wedge adjustment hydraulic cylinder. A wedge adjustment hydraulic pressing rod is connected to the wedged iron block. The bodies of the wedge adjustment hydraulic cylinders are connected to the shims. The tensioning device and the tensioning method can be used for implementing automatic adjustment and control of the tensile force of the steel wire rope of the cage guide of the ultra-deep vertical shaft.

An elevator system that may be ropeless is in a structure and includes a guide rail and a guide rail extension that may generally guide a car between a hoistway and a transfer station of the system. The rail extension may generally project telescopically downward from the first rail and toward the transfer station. The telescopic relationship between the guide rail extension and the guide rail may generally compensate for vertical structure compression that may occur over a period of time.