A lifting hook bias angle monitoring apparatus, a vertical hoisting monitoring apparatus, and a mobile crane. One method is that a lifting hook assembly serially connects connecting plates (b3) provided with hinge connection shafts (b2, b4) at two ends to a movable pulley component (b1) which bears a pulling force and a lifting hook component (b7) which bears a pulling force, and is also provided with a biaxial inclinometer (b9) on a platform surface (b8) of the connecting plates (b3) which is perpendicular to a lifting force line of action of the lifting pulley component, so as to detect a real-time lifting hook bias angle, and accordingly be developed into a mobile crane having a vertical hoisting monitoring function.

An apparatus for use by a load-lifting machine in aerial lift and transportation of loads, the apparatus comprising: a triangular body having a first side and a second side, the triangular body being adapted to balance weights of the loads simultaneously aerially lifted and transported; a plurality of holes, each hole of the plurality of holes being disposed in a corner of the triangular body; a plurality of couplers, each coupler of the plurality of couplers being connected to one of the plurality of holes; a lifting hook comprising a self-locking latch and an eye loop, the lifting hook being connected to a first coupler of the plurality of couplers via the eye loop, and the lifting hook being adapted to attach to the loads; and a lifting ring connected to a second coupler of the plurality of couplers, the lifting ring being adapted to connect to the load-lifting machine.

An apparatus for use by a load-lifting machine in aerial lift and transportation of loads, the apparatus comprising: a triangular body having a first side and a second side, the triangular body being adapted to balance weights of the loads simultaneously aerially lifted and transported; a plurality of holes, each hole of the plurality of holes being disposed in a corner of the triangular body; a plurality of couplers, each coupler of the plurality of couplers being connected to one of the plurality of holes; a lifting hook comprising a self-locking latch and an eye loop, the lifting hook being connected to a first coupler of the plurality of couplers via the eye loop, and the lifting hook being adapted to attach to the loads; and a lifting ring connected to a second coupler of the plurality of couplers, the lifting ring being adapted to connect to the load-lifting machine.

An unmanned aerial vehicle according to certain embodiments generally includes a chassis, a power supply mounted to the chassis, a control system operable to receive power from the power supply, at least one rotor operable to generate lift under control of the control system, and a winch mounted to the chassis. The winch includes a reel and a motor. The reel has a line wound thereon, the line having a free end. The reel includes a circumferential channel in which a wound portion of the line is wound onto the reel. The circumferential channel includes an inner portion, an outer portion, and a passage connecting the inner portion and the outer portion. The motor is operable to rotate the reel under control of the control system to thereby cause the line to wind onto and off of the reel, thereby causing the free end of the line to raise and lower.

A retaining mechanism for a clevis hook assembly with an axial device that provides a retaining mechanism for a load pin.

A retaining mechanism for a clevis hook assembly with an axial device that provides a retaining mechanism for a load pin.

Load lifting systems include a load lifting structure configured with at least two attach points defining at least one axis between two attach points of the at least two attach points, a flexible suspension member suspended from the load lifting structure at the at least two attach points, and a carriage configured to have a load suspended therefrom having at least one guide element arranged along the at least one axis and configured to move relative to and along the suspension member along the at least one axis such that the carriage follows a curved path having a continuously varying radius of curvature based on the at least two attach points.

An Enhanced Lift Assist Device is described. The device allows a user to lift and manipulate large, heavy or bulky items by applying force to the item as opposed to traditional control methods such as buttons. This force based system provides ease of movement of the item, making it appear much lighter than it actually is. The Enhanced Lift Assist Device also includes an adjustable base that allows for change of orientation of the device that may include leveling or self-leveling functionality, allowing the device to be operated in non-traditional environments that require leveling or operational adjustments for proper functioning.

An unmanned aerial vehicle according to certain embodiments generally includes a chassis, a power supply mounted to the chassis, a control system operable to receive power from the power supply, at least one rotor operable to generate lift under control of the control system, a line having one end coupled to the chassis and an opposite free end, wherein the free end is positioned below the chassis, and a severing mechanism operable to sever the line under control of the control system.

A lifting hook including a fixed portion and a moving portion coupled to the fixed portion, the moving portion being pivotable between a locking position in which the moving portion retains a profile of a formwork panel housed in a housing of the fixed portion, and a release position in which the profile of the formwork panel can be introduced into or extracted from the housing. The lifting hook also includes a pushing part coupled to the fixed portion which pushes the moving portion when the pushing part is pulled.