A slurry wall grab has a hybrid drive in turn having at least one pulley block, at least one hydraulic actuator, and at least one energy store. The hydraulic actuator and the pulley block open and/or close a grab jaw of the slurry wall grab. The energy store can be charged by actuating the pulley block.

A system and method of transporting and unloading a load from a floating container that includes placing a load on a floating container at a first location, wherein the load is a mixture of solid material and liquid; moving the floating container with the load on a body of water from the first location to a remote second location; positioning the floating container so that a crane at the second location is within reach of the load; positioning a dewatering unit at the second location proximate the crane; unloading a quantity of the mixture of solid material and liquid from the floating container with the crane; depositing the quantity of the mixture of solid material and liquid into the dewatering unit; and dewatering the quantity of the mixture of solid material and liquid with the dewatering unit.

A crop bucket having an aux-bail release mechanism wherein movement of the chains is restrained such that an auxiliary hook actuating the release mechanism can do so in a smooth and controlled manner from a variety of angles and positions, while reducing or eliminating bucket roll from offset pulling. The release mechanism can include a carriage configured to translate along at least a portion of a mast and operatively connected to first and second clamshell portions such that movement of the carriage away results in rotation of the clamshell portions toward the open position.

A system and method of transporting and unloading a load from a floating container that includes placing a load on a floating container at a first location, wherein the load is a mixture of solid material and liquid; moving the floating container with the load on a body of water from the first location to a remote second location; positioning the floating container so that a crane at the second location is within reach of the load; positioning a dewatering unit at the second location proximate the crane; unloading a quantity of the mixture of solid material and liquid from the floating container with the crane; depositing the quantity of the mixture of solid material and liquid into the dewatering unit; and dewatering the quantity of the mixture of solid material and liquid with the dewatering unit.

A support system is provided for a gear case of a rope shovel. The gear case supports a gear drive configured to drive rotation of a hoist drum, and the gear case includes a first end, a second end, and a longitudinal axis extending between the first end and the second end. The support system includes: a coupling for securing the gear case against translational movement relative to a rotating frame, the coupling oriented orthogonally to the longitudinal axis and configured to engage the rotating frame and a portion of the gear case; and a support member configured to be coupled to the rotating frame of the rope shovel and supporting the gear case, the support member permitting translational movement of the gear case relative to the rotating frame to accommodate flexing of the rotating frame.

A material handling device for the loosening of forage, in particular silage from a silo. The material handling device is provided with a grab device provided with grab device members of which the edges facing towards each other are provided with cutting elements. The grab device members are movable between a closed position and an opened position, wherein the cutting elements are positioned at an angle with the vertical. This angle is in the range of 25 to 25 degrees, preferably 15 to 15 degrees with the vertical.

A method for filling a gripper for bulk material, with the gripper being suspended on holding cables, raised and lowered by a crane via a controller, and acting on the bulk material with the gripper weight during the closing and filling process. By reducing the effect of the weight of the gripper on the bulk material, a fill degree of the gripper is influenced via the controller in that a tensile force acting on the holding cables is influenced in order to optimally fill the gripper. A tensile force TARGET value is determined for the holding cables via the controller and is output to a tensile force controller as an input variable. An electric motor for lifting and lowering the gripper is controlled by the tensile force controller, and an ascertained tensile force ACTUAL value of the holding cables is supplied to the tensile force controller as an input variable.

A hoisting apparatus that is operable to lift objects from a transport vehicle and further provide positioning thereof in alternate location wherein the present invention provides load leveling and balancing of the object while suspended. The present invention includes a housing that is suspendedly mounted to a crane lifting block. The housing includes an exterior wall having a top and a bottom and further including an interior volume with an opening at the bottom substantially the diameter of the housing. The housing has mounted therein four winches wherein each of the four winches is independently operated so as to separately control the length thereof. A center attachment member is present that is configured to secure the hoisting apparatus to the lifting block of a crane. Securing members are operably coupled to the center attachment member and are equidistantly distributed around the circumference of the housing.

A four cable operated scissors grab, comprising a pair of scissor levers that are connected via a pivot joint to pivot about a pivoting axis, which scissor levers each include a grab shell and a hoist cable connection situated on a first side of the lever with respect to the pivot joint, and a closing cable connection situated on a second side of the lever that is opposite with respect to the pivot joint, so that in use a dedicated hoisting cable is fastened to each lever on the first side of the lever, and a dedicated closing cable is fastened to each lever at the second side of the lever. The scissor levers each include a sheave on the second side of the lever, and said sheaves are each arranged as a first and final closing sheave, so that in use each of the two closing cables extend in a single pass from a closing cable connection on the second side of one lever via the closing sheave on the second side of the other lever to depart from the grab and continue upward to a crane carrying the grab.

A four cable operated scissors grab, comprising a pair of scissor levers that are connected via a pivot joint to pivot about a pivoting axis, which scissor levers each include a grab shell and a hoist cable connection situated on a first side of the lever with respect to the pivot joint, and a closing cable connection situated on a second side of the lever that is opposite with respect to the pivot joint, so that in use a dedicated hoisting cable is fastened to each lever on the first side of the lever, and a dedicated closing cable is fastened to each lever at the second side of the lever. The scissor levers each include a sheave on the second side of the lever, and said sheaves are each arranged as a first and final closing sheave, so that in use each of the two closing cables extend in a single pass from a closing cable connection on the second side of one lever via the closing sheave on the second side of the other lever to depart from the grab and continue upward to a crane carrying the grab.