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Lifting appliance
A machine for lifting and handling loads with an orientable articulated placing jib, comprising a mast with a rotating pivot, an articulated jib ( 16 ) comprising a jib foot ( 19 ), articulated at its first end on the top of the mast by a horizontal rotation axis ( 27 ), a jib head member ( 18 ) articulated for rotation by a horizontal articulation axis ( 32 ) at the second end of the jib foot, a jib holding assembly comprising at least one stanchion ( 7 ), a jib holding line ( 11 ) and a moving counterweight ( 100 ) connected to the jib by the said holding line. The counterweight is made to follow a guiding track ( 1 ) with a variable slope (α), integral with the rotating pivot, supporting the said counterweight, arranged opposite to the jib, and where the variations in slope (α) are chosen so that the counterweight exerts a set of variable forces on the said jib and on the structure of the said machine, helping to balance the machine during movements of deployment/retraction of the jib in articulated working mode.

Backhoe for all-terrain vehicles
A backhoe for quick connection to an end of an all-terrain vehicle (ATV) is described. A quick-connector mechanism is secured to a main mounting frame of the backhoe for securement to attaching components of an ATV. The backhoe has a pair of adjustable telescopic legs and a pivoting boom assembly, as is common with such apparatus. The pivoting boom assembly is connected to the main mounting frame of the backhoe by a piston operated pivoting mechanism for 180° lateral displacement of the boom assembly. The pivoting mechanism is comprised of a toothed sprocket secured to a vertical pivot connection at an attaching end of the boom assembly and fixedly secured to the main mounting frame. A sliding rack is provide with a series of teeth in toothed engagement with the toothed sprocket and secured for axial displacement by a fluid operated cylinder to cause the sprocket to turn and cause rotation of the pivot connection to thereby rotate the boom assembly within an arc of 180°.

Method and device for determining a swinging motion of a load suspended from a lifting gear
A method and a device for determining the rotary oscillation of a load suspended from a lifting gear are disclosed. The lifting gear includes a trolley equipped with a camera that can be oriented towards the load. The load includes at least two spaced apart markers, with one marker located on or near the axis of rotation, which extends in the lifting direction. A rotary oscillation of the load can be determined from the position of two markers, whereby at least one marker is recorded by the camera and its position is determined. At least at certain points in time, the rotary oscillation is determined by including a virtual position of a marker.

Assembly for mounting various work tools to a construction vehicle
An assembly for mounting various work tools, e.g., a backhoe, to a pair of parallel frame members ( 28 ) of a vehicle ( 20 ). A pair of parallel main beams ( 26 ) extend transversely across the frame members ( 28 ) and a telescoping stabilizing leg ( 24 ) extends downwardly from each end of each of the main beams ( 26 ). Four posts ( 48 ) extend from the main beams ( 26 ) for connecting the main beams ( 26 ) at spaced positions along the pair of parallel frame members ( 28 ). Each of the posts ( 48 ) is L-shaped in cross section with one flange thereof welded to the associated main beam ( 26 ) and the other flange attached to the vehicle ( 20 ) frame members ( 28 ). A pair of bearing blocks ( 50 ) are disposed on a first leg cross-beam ( 42 ) for pivotally supporting a and a pair of hydraulic cylinder-pistons ( 52 ) are attached to a main cross-beam ( 40 ) for pivoting the backhoe about the bearing blocks ( 50 ).