The present invention relates generally to lifting gear such as cranes which use ropes such as high-strength fiber ropes. The invention here in particular relates to an apparatus for monitoring operating data and/or for determining the replacement state of such a rope in use on such lifting equipment having a detection device for detecting at least one rope use parameter that influences the replacement state of wear and having a data store for storing the detected rope use parameter and/or an operating parameter derived therefrom that characterizes the residual service life and/or the replacement state of wear of the rope. Provision is made in accordance with the invention that the data store for storing the at least one detected rope use parameter and/or an operating parameter derived therefrom is integrated in the rope, with a reading and/or writing unit connected to the detection device for detecting said rope use parameter being provided to write to the data store in the rope installed at the lifting equipment.

The present invention relates generally to lifting gear such as cranes which use ropes such as high-strength fiber ropes. The invention here in particular relates to an apparatus for monitoring operating data and/or for determining the replacement state of such a rope in use on such lifting equipment having a detection device for detecting at least one rope use parameter that influences the replacement state of wear and having a data store for storing the detected rope use parameter and/or an operating parameter derived therefrom that characterizes the residual service life and/or the replacement state of wear of the rope. Provision is made in accordance with the invention that the data store for storing the at least one detected rope use parameter and/or an operating parameter derived therefrom is integrated in the rope, with a reading and/or writing unit connected to the detection device for detecting said rope use parameter being provided to write to the data store in the rope installed at the lifting equipment.

Work platform, comprising an elevatable platform deck provided with a rail system having one or more rails extending in a longitudinal direction along a trailing edge of the deck; a trolley engaging with the one or more rails and configured for being moved in the longitudinal direction; and a crane device mounted on the trolley, configured for lifting and moving objects above the platform surface.

A power pack [2] is located within a housing [3] on the platform [1] of a wind turbine generator tower. The power pack [2] is supplied from a fuel tank [4]. With the door [6] of the housing [3] open, the power pack [2] may be removed for servicing and repair by using a U-shaped support structure [8] to which an electric motor [11] is mounted. Two support rails [12] permanently located within the housing [3] support the housed power pack [2]. A chain [15] attached to the power pack [2] is driven by the motor [11] to remove the power pack [2] from the housing [3] by sliding the power pack [2]along the support structure [8]. A pulley arrangement reduces the necessary torque. After removing the power pack [2] from the housing [3], a crane [7] is used to lift the power pack [2] from the platform [1] and to lower it down to a sea vessel [17]. The crane [7] may also be used in the refilling of the fuel tank [4] by hauling a fuel line [18] from a sea vessel up to the platform [1] and connecting it to the fuel tank [4].

A davit arm holder 30,50 for a davit arm 11-18 for suspending lines 4 from elevated heights by mounting the davit arm 11-18 on a structural substrate 1. The davit arm holder 30,50 comprises a base 50 formed from one or more planar layers 52 of sheet material adapted to lie parallel to the plane of a surface of the substrate 1, and an attachment 30 adapted to be fixedly attached to the base 50 and to provide a connection 32 to engage a davit arm 11-18. The base 50 includes an outer layer 52 and at least one inner mount 60. The outer layer 52 has a plurality of first engagement portions 70 that are radially spaced from a centre point 54 of the base 50. The at least one inner mount 60 is integrally formed with the outer layer 52, is fixedly securable to the substrate 1 and is adapted to space an inside surface 68 of the outer layer 52 from the substrate 1 to form a gap 66 under the outer layer 52. The base 50 is adapted to have a low-profile when anchored to the substrate 1. The attachment 30 is adapted to be releasably engaged to the base 50 by a plurality of second engagement portions 40 adapted to engage the corresponding plurality of first engagement portions 70 by rotation of the attachment 30 about an axis 56 perpendicular to the plane of the substrate 1.

A crane risk logic apparatus and system and method for use of the same are disclosed. In one embodiment of the crane risk logic apparatus, the crane risk logic apparatus is integral with a crane, such as a crawler crane or a tower crane, and located in communication with a load moment indicator. The crane risk logic apparatus receives crane data from the load moment indicator and determines lift cycle data therefrom. The crane risk logic apparatus determines an area of interest based on locationing data received from a global positioning system (GPS) unit incorporated therewith and receives weather data for this area of interest. The crane risk logic apparatus causes an alert notification at the crane to occur in response to presence of weather issues.

A line guidance device (40) is provided for use with a confined space entry/retrieval hoist and fall protection anchorage system (10) and includes a line guide (46) that guides a line from an extend/retract line device (22) past another extend/retract line device (20) with both devices (20, 22) mounted on a backside (24) of a mast (12) of the system (10).

A pipe lifting apparatus and method related thereto are provided, wherein the pipe has a base with outriggers, a vertically extending beam having a pulley at its upper end and a cable attached to a winch and extending over the pulley. The pulley and winch are oriented so that the cable extends naturally in line with a vertex between two of the outriggers such that, when a pipe in a vertical sleeve is attached to the distal end and is lifted by the cable, the pipe passes adjacent to the vertex. The apparatus is configured to raise pipes from a vertical pipe sleeve used in floating roofs of above-ground storage tanks. The apparatus can be used to raise and lower pipes and to move them around the upper surface of the floating roof of the tanks.

The invention provides a bearing. In particular, the invention provides a bearing for allowing a column of a davit to be rotatably mounted on a substantially upright shaft. The bearing has a body shaped to correspond to an internal profile of the column. The body has a first bore for receiving a component on which the bearing bears and a first pair of parallel, spaced second bores, narrower than the first bore, which extend across the first bore in a direction perpendicular to an axis of the first bore and are configured to receive retaining pins which engage with a groove in the component received in the first bore. A single bearing can be used to rotatably couple the davit to the shaft, or king post, with a plurality of different-spaced bores to account for different diameters of shaft. This improvement allows the davit to be manufactured easily and erected easily by users.

Telescopic lattice type crane boom for a crane, further comprising a locking system configured to lock at least one telescopic boom section with respect to a base boom section in at least an extended position, wherein said locking system includes a plurality of pins, each pin being configured to extend, in at least the extended position of the boom, at least partly through a corresponding pin receiving aperture provided in one of the base boom section and the at least one telescopic boom section.