Abstract: A method (100) of mounting a blade (22) to or unmounting a blade (22) from a rotor hub (20) of a wind turbine (10), the wind turbine (10) comprising a tower (12) and a nacelle (16) mounted on the tower (12), the rotor hub (20) being coupled to the nacelle (16), the method (100) comprising gripping the blade (22) using a gripper (50), the gripper (50) comprising gripping members (58) configured for gripping the blade (22) and teeth (60) protruding from the gripping members (58), wherein gripping comprises inserting the teeth (60) of the gripper (50) into receptacles (78) of the blade (22); and rotating the blade (22) about a rotation axis (54) perpendicular to a longitudinal blade axis (53) using a blade rotation device (52) of the gripper (50), wherein the teeth (60) are configured for transmitting an axial load (57) of the blade (22) between the blade (22) and the gripping members (58).

Abstract: A blade gripping device for gripping a rotor blade, in particular a rotor blade of a wind turbine, comprising a blade gripping assembly with a number of blade gripping tools and a sensor arrangement realized to sense a specific feature of the rotor blade is provided. Thereby, the specific feature is such that it can be used to orientate the blade holding device relative to the rotor blade in a blade gripping manoeuvre. Further the invention concerns a method of moving a blade gripping device for gripping a rotor blade, in particular a rotor blade of a wind turbine, relative to the rotor blade.

Abstract: A lifter bar is includes at least one attachment formation for use in lifting the lifter bar; wherein the at least one attachment formation is embedded in the lifter bar. A method of producing the lifter bar and tools for use in handling the lifter bar are also described.

Abstract: An electric-controlled operator includes, in part, a first group of grippers and a second group of grippers which are coupled to a base. Grippers in said first group of grippers are adapted to cooperatively grip an object and cooperatively release the object. Grippers in the second group of grippers are adapted to cooperatively grip an object and cooperatively release the object. When the first (or the second) group of grippers cooperatively grips an object, the second (or the first) group of grippers is in a state in which the object is released. The first and second groups of grippers are adapted to put in and take out objects from the same surface of the said base thus eliminating the need for turning of the base during the operation.

Abstract: The invention relates to a container yoke (1) for lifting of at least one container (5), comprising a base frame (2), two travelling beams (3a,b), which are telescopically displaceable in the base frame (2) and on whose outer end portions are arranged transverse beams (6a,b) provided with locking members (8), so called twist locks, for engagement in, and locking to, the corner boxes of a container (5). The invention is realized by virtue of the fact that cables (11a,b) are arranged to displace a respective travelling beam (3a,b) into the desired position in the frame (2) of the container yoke, that the cables (11a,b), for displacement of a travelling beam (3a,b), are simultaneously reeled up and unreeled with the aid of one and the same cable drum (10b), that both cable drums (10a,b) of the container yoke (1) are driven by a common actuator (4), and that the cables (11a,b) are fastened in the end portion of a respective travelling beam (3a,b) via spring-loaded cable tensioners (15a,b).

Abstract: An article holding assembly for rotatably securing and hoisting various types of articles is provided. The article holding assembly is a clamp type article holding assembly having interchangeable end effectors rotatably secured to bottom ends of clamp arms. The end effectors act to secure the article and to allow the operator to rotate the article once secured and hoisted. For each article that the article holding assembly is to rotatably secure and lift, a specific pair of end effectors is provided. The end effectors are readily secured to and removed from the clamp arms.

Abstract: A method adapted to transfer a sample container such as a capped sample tube is disclosed. In one aspect, the method includes gripping a sample tube body with a first gripper pair and a cap with a second gripper pair of a gripper apparatus. In another aspect, a seating member may contact the cap to aid in the positioning of the sample container. Apparatus and systems for carrying out the method are provided, as are other aspects.

Abstract: A plant transplanting apparatus includes a pair of hand spade assemblies each having a post with a top end and a bottom end and a blade that has a top edge and a bottom edge. The top edge is attached to the bottom end of the post and a grip is attached to the top end of the post. A coupling assembly releasably couples the hand spade assemblies together. The coupling assembly engages the posts to allow the first sides of the blades to be pivoted toward or away from each other. The coupling assembly is adjustable to allow a space between the spade assemblies to be selectively adjusted. The blades are extended into soil on either side of a plant and the blades are pivoted toward each other to lift the plant from the soil to allow the plant to be transplanted.