The invention relates to a method for generating a trajectory for a load transported by a hoisting appliance spanning a hoisting area. The method includes providing a 3-dimensional model of the hoisting area with located obstacles within the hoisting area, providing load parameters including load length, height, width and weight. Generating a trajectory for navigating through the hoisting area using the model of the hoisting area and taking in account located obstacles, load parameters; and load movement parameters including a maximum attainable speed of the hoist appliance with the load, wherein the generated trajectory includes a starting point, a target point and a number of consecutive line segments connecting the starting point and the target point. And optimizing the trajectory for speed by maximizing the length of at least one line segment in a main direction of travel in order to travel at a maximum attainable speed of the hoisting appliance with the load in the main direction of travel.

The present disclosure provides a device for fixing a gantry crane rail in a factory building and a gantry crane system using the same. The device comprises a main body, which comprises a top portion, a first surface and a second surface opposite the first surface. The top portion is fixed to a bottom surface of a beam of the factory building, and the first surface and the second surface are substantially parallel to the crane rail. The device further comprises a first protruded support positioned on the first surface and a second protruded support positioned on the second surface.

The present disclosure provides a device for fixing a gantry crane rail in a factory building and a gantry crane system using the same. The device comprises a main body, which comprises a top portion, a first surface and a second surface opposite the first surface. The top portion is fixed to a bottom surface of a beam of the factory building, and the first surface and the second surface are substantially parallel to the crane rail. The device further comprises a first protruded support positioned on the first surface and a second protruded support positioned on the second surface.

A bridge crane arrangement includes at least one main girder having a central web and a bottom flange; end girders supporting opposite ends of the main girder; a slide arranged between an end girder and the main girder, the slide allowing the movement of the end girder in relation to the main girder in at least its longitudinal direction and the rotation of the end girder and main girder in relation to each other; and a restrictor to restrict the movements between the end girder and the main girder. On the top surface of the end girder, there is arranged a support platform wider than the bottom flange, the slide includes a slide surface arranged on the top surface of the support platform and/or the bottom surface of the bottom flange, and the restrictor is arranged to the support platform on both sides of the bottom flange.

A bridge crane arrangement includes at least one main girder having a central web and a bottom flange; end girders supporting opposite ends of the main girder; a slide arranged between an end girder and the main girder, the slide allowing the movement of the end girder in relation to the main girder in at least its longitudinal direction and the rotation of the end girder and main girder in relation to each other; and a restrictor to restrict the movements between the end girder and the main girder. On the top surface of the end girder, there is arranged a support platform wider than the bottom flange, the slide includes a slide surface arranged on the top surface of the support platform and/or the bottom surface of the bottom flange, and the restrictor is arranged to the support platform on both sides of the bottom flange.

A bottom block assembly includes a bottom block defining a cavity and at least one opening passing through a portion of the bottom block. The assembly further includes a plurality of sheaves disposed at least partially within the cavity, each sheave having a central opening. The assembly further includes a sheave pin passing through the at least one opening in the bottom block and the central openings in the sheaves to rotatably couple the plurality of sheaves to the bottom block. The assembly further includes a plurality of captivating frame assemblies to be coupled to the plurality of sheaves, each of the plurality of captivating frame assemblies including a housing and a plurality of rollers rotatably mounted to the housing. Each captivating frame assembly is associated with a corresponding one of the sheaves. The assembly further includes a plurality of wires for coupling the plurality of captivating frame assemblies to the plurality of sheaves. Each wire is reeved around one of the sheaves and reeved through the corresponding captivating frame assembly.

A bottom block assembly includes a bottom block defining a cavity and at least one opening passing through a portion of the bottom block. The assembly further includes a plurality of sheaves disposed at least partially within the cavity, each sheave having a central opening. The assembly further includes a sheave pin passing through the at least one opening in the bottom block and the central openings in the sheaves to rotatably couple the plurality of sheaves to the bottom block. The assembly further includes a plurality of captivating frame assemblies to be coupled to the plurality of sheaves, each of the plurality of captivating frame assemblies including a housing and a plurality of rollers rotatably mounted to the housing. Each captivating frame assembly is associated with a corresponding one of the sheaves. The assembly further includes a plurality of wires for coupling the plurality of captivating frame assemblies to the plurality of sheaves. Each wire is reeved around one of the sheaves and reeved through the corresponding captivating frame assembly.

A system for servicing a nuclear reactor module comprises a crane operable to attach to the nuclear reactor module, wherein the crane includes provisions for routing signals from one or more sensors of the nuclear reactor module to one or more sensor receivers.

A control switch for operating a crane. The control switch includes a first interface designed to transfer signals between the control switch and a control unit of the crane. In order to combine, in particular, the robustness and operating reliability of the control switch desired in industrial use with increased functional scope in a cost-effective way, the control switch is provided with a second interface designed to transfer signals between a mobile terminal and the control switch in order to add functions of the mobile terminal to the functional scope of the control switch.

A crane lifting device, and method for raising and/or lowering a load-handling element of a crane lifting device, allows for operating the lifting device with a first velocity or with a second velocity greater than the first velocity, by means of a control unit. To achieve a reduction in impulses while raising the load-handling element, and to achieve an extended service life of the supporting means, an inclination sensor is used to determine an inclination angle of the load-handling element and/or a state sensor is used to determine a free or occupied state of the load-handling element. An evaluating unit interacts with the control unit in such a way that, depending on the determined inclination angle and/or the determined free or occupied state, the evaluation unit prevents or permits operation of the lifting device with the second velocity by means of the control unit.