A wheel block, preferably for an overhead traveling crane, wherein the wheel block comprises a housing and a wheel mounted in the housing and protruding out of the housing. In order to allow for proactive maintenance of the wheel with a simple checking process and simultaneously reliable loading and, in particular, overloading detection and identification, according to the invention, the wheel block has a contactless operating measuring device for determining the distance between the measuring device and the wheel, in order to detect and/or identify and/or predict any current and/or future wear on the wheel and/or a loading, in particular an unloaded state and/or an overloaded state, of the wheel block based on measurement signals or measurement data from the measuring device and an evaluation thereof.

A trolley for mounting on a beam of a gantry, comprising: a first plate; a roller assembly, mounted at an end of the first plate; a shaft, extending outwardly of the first plate; and a second plate, rotatably mounted on the shaft such that the second plate can move between a closed position, in which the second plate engages with the roller assembly and an open position in which the second plate does not engage with the roller assembly.

A trolley for mounting on a beam of a gantry, comprising: a first plate; a roller assembly, mounted at an end of the first plate; a shaft, extending outwardly of the first plate; and a second plate, rotatably mounted on the shaft such that the second plate can move between a closed position, in which the second plate engages with the roller assembly and an open position in which the second plate does not engage with the roller assembly.

A self-steering wheel for use with an overhead crane or a train car includes a trapezoidal shaped tread formed as part of the wheel. The trapezoidal shaped wheel tread, when riding on a steel track, will cause the wheel to self-steer and therefore cause self-steering of the overhead crane or train.

A self-steering wheel for use with an overhead crane or a train car includes a trapezoidal shaped tread formed as part of the wheel. The trapezoidal shaped wheel tread, when riding on a steel track, will cause the wheel to self-steer and therefore cause self-steering of the overhead crane or train.

A load assembly for use with an aircraft includes a support sub-assembly and a lifting sub-assembly. The support sub-assembly is configured for removable coupling to a structural member of the aircraft. The structural member has a first interior position and a second interior position. The support sub-assembly extends between the first interior position and the second interior position. The lifting sub-assembly is movably coupled to the support sub-assembly. The lifting sub-assembly is movable along the support sub-assembly between the first interior position and the second interior position and configured to lift or lower a load, and to support the load as the lifting sub-assembly moves along the support sub-assembly between the first interior position and the second interior position.

A guided vehicle includes a guidance unit having first and second V-mounted guide pulleys resting on first and second running surfaces of a guide rail. The running surfaces are on sides of a median longitudinal plane of the guide rail and each pulley has a flange for freely gripping the guide rail. A device and method protecting against loss of vehicle guidance include a section with longitudinal height fixed along its length to a guide rail part, between running surfaces, the section having a cross-section guiding the unit during derailment or loss of guidance thereof with the section fixed to the guide rail part. The cross-section geometry holds the first pulley flange on the side of the median plane including the first pulley running surface and the second pulley flange on the side including the second pulley running surface. A device fixes the section to the guide rail.

A guided vehicle includes a guidance unit having first and second V-mounted guide pulleys resting on first and second running surfaces of a guide rail. The running surfaces are on sides of a median longitudinal plane of the guide rail and each pulley has a flange for freely gripping the guide rail. A device and method protecting against loss of vehicle guidance include a section with longitudinal height fixed along its length to a guide rail part, between running surfaces, the section having a cross-section guiding the unit during derailment or loss of guidance thereof with the section fixed to the guide rail part. The cross-section geometry holds the first pulley flange on the side of the median plane including the first pulley running surface and the second pulley flange on the side including the second pulley running surface. A device fixes the section to the guide rail.

A wheel block, preferably for an overhead traveling crane, wherein the wheel block comprises a housing and a wheel mounted in the housing and protruding out of the housing. In order to allow for proactive maintenance of the wheel with a simple checking process and simultaneously reliable loading and, in particular, overloading detection and identification, according to the invention, the wheel block has a contactless operating measuring device for determining the distance between the measuring device and the wheel, in order to detect and/or identify and/or predict any current and/or future wear on the wheel and/or a loading, in particular an unloaded state and/or an overloaded state, of the wheel block based on measurement signals or measurement data from the measuring device and an evaluation thereof.

A wheel block, preferably for an overhead traveling crane, wherein the wheel block comprises a housing and a wheel mounted in the housing and protruding out of the housing. In order to allow for proactive maintenance of the wheel with a simple checking process and simultaneously reliable loading and, in particular, overloading detection and identification, according to the invention, the wheel block has a contactless operating measuring device for determining the distance between the measuring device and the wheel, in order to detect and/or identify and/or predict any current and/or future wear on the wheel and/or a loading, in particular an unloaded state and/or an overloaded state, of the wheel block based on measurement signals or measurement data from the measuring device and an evaluation thereof.