An object of the present disclosure is to provide a utility pole rotation apparatus and a position control method that can reduce not only the number of workers for adjusting an orientation of a scaffold bolt (an orientation of a side surface of the utility pole) but also the number of workers for stopping swinging of the utility pole, which cannot be simultaneously reduced in the related art.

The utility pole rotation apparatus according to the present disclosure includes a gripping portion that grips a utility pole, and a roller having a cylindrical shape that contacts the utility pole at an inner side of the gripping portion and rotates the utility pole with a longitudinal direction serving as an axis due to rotation of the roller.

A vacuum material handler (10) has a vacuum beam (12) supported by an adaptor block (60) attached to a rotator (50). A vacuum pad (40) is carried beneath the vacuum beam (12). The vacuum beam (14) has a motor (20) that powers a pump (30). The adaptor block (60) has a body (64) and arms (70/71) having receivers thereon for receiving an upper pin assembly that may be carried by host equipment. The host equipment locates foe upper pin assembly within foe receivers where the upper pin (66) may be clamped into place, thereby conducting all heavy lifting with foe host equipment.

A grappler overload protection system uses a load-measuring device to provide a first load indication for preventing the grappler from bearing an unsafe load when the first load indication exceeds a first limit. A grappler overload protection method determines a spread of grappler arms based on information from a first sensor, determines an expected weight of the load based on the spread of the grappler arms, and compares the expected weight to a first limit for preventing the grappler from bearing an unsafe load. The method may optionally determine an angle of a boom supporting the grappler for determining an expected torque on the boom based on the boom angle and the expected weight of the load. The method may take preventative measures to prevent the grappler from bearing the load when the expected weight exceeds the first limit or when the expected torque exceeds a second limit.

The invention provides a lifting device (1) for lifting a leg of at least one part of a sea platform comprising a support structure and a top side, wherein the lifting device comprises: a base structure (2) to be mounted on a vessel; a gripping device (3) to grip the leg, wherein the gripping device is movably supported with respect to the base structure; a support device (4) mounted on the base structure, and a lifting beam (5), wherein a first end of the lifting beam is configured to be supported at a support location of the support device and wherein a second end of the lifting beam opposite to the first end is configured to be connected to the gripping device.

The invention provides a lifting device (1) for lifting a leg of at least one part of a sea platform comprising a support structure and a top side, wherein the lifting device comprises: a base structure (2) to be mounted on a vessel; a gripping device (3) to grip the leg, wherein the gripping device is movably supported with respect to the base structure; a support device (4) mounted on the base structure, and a lifting beam (5), wherein a first end of the lifting beam is configured to be supported at a support location of the support device and wherein a second end of the lifting beam opposite to the first end is configured to be connected to the gripping device.

Aspects described herein include an end effector capable of prehending items using impactive and astrictive forces. The end effector includes an interface system having a deformable mounting plate and a pliable body member attached to the mounting plate. The end effector further includes a linkage system between a plurality of actuators and the interface system. The linkage system connects to lateral portions of the mounting plate.

A sacrificial polymer pole guide cover for the use of covering one or more pole guide tongs in a pole guide. The pole guide cover has a generally arcuate body presenting a length and that is curved along the length. The pole guide cover further presents a concave interior surface along the length and a convex exterior surface along the length. A channel is formed in at least a portion of the length of the convex exterior surface. The channel is shaped to complementally receive at least a portion of a pole guide tong. The pole guide cover also has a mounting assembly for removably mounting the pole guide cover to the pole guide tong.

A sacrificial polymer pole guide cover for the use of covering one or more pole guide tongs in a pole guide. The pole guide cover has a generally arcuate body presenting a length and that is curved along the length. The pole guide cover further presents a concave interior surface along the length and a convex exterior surface along the length. A channel is formed in at least a portion of the length of the convex exterior surface. The channel is shaped to complementally receive at least a portion of a pole guide tong. The pole guide cover also has a mounting assembly for removably mounting the pole guide cover to the pole guide tong.

The invention relates to an arrangement (600) for controlling a rotator, the arrangement (600) comprising a control device (100); a rotator (200) for a jib-carried tool (300); and one or more image sensing devices (700); wherein the control device (100) is configured to obtain one or more signals (702) from the one or more image sensing devices (700), obtain a location of a target object (500) based on the one or more signals (702), and control the rotator (200) based on the location of the target object (500). Furthermore, the invention also relates to a corresponding method, a vehicle comprising such an arrangement and a computer program.

The invention relates to an arrangement (600) for controlling a rotator, the arrangement (600) comprising a control device (100); a rotator (200) for a jib-carried tool (300); and one or more image sensing devices (700); wherein the control device (100) is configured to obtain one or more signals (702) from the one or more image sensing devices (700), obtain a location of a target object (500) based on the one or more signals (702), and control the rotator (200) based on the location of the target object (500). Furthermore, the invention also relates to a corresponding method, a vehicle comprising such an arrangement and a computer program.