A jib crane cart assembly including a platform having a proximal surface and a distal surface, the platform having a reinforcement structure between the proximal surface and the distal surface, a pair of masts extending from the proximal surface of the platform, each of the masts having a jib arm moveably secured thereto, and a set of wheels secured to the platform, wherein the set of wheels are arranged for a cart track of a coke oven battery.

A system for extraction of a pool cleaning robot from a pool, the system may include a base for receiving the pool cleaning robot; and at least one out of (a) an interface device and (b) a pool cleaner electrical power cable winding drum; wherein the interfacing device comprises an interfacing device portion that extends beyond and below the base during a part of the extraction of the pool cleaning robot from the pool; and wherein the pool cleaner electrical power cable winding drum is configured to wind and unwind a power cable of the pool cleaning robot during the part of the extraction of the pool cleaning robot from the pool.

An engine hoisting assembly for supporting an engine comprises a ground supporting frame, a substantially upright member having a longitudinal axis, a boom operably connected to the upright member, lifting means to selectively move the boom up or down along upright member's longitudinal axis and engine connecting means to operably connect the boom to the engine. The boom is maintained at a substantial horizontal orientation when lifting means selectively moves boom up or down.

A crane for lifting and transporting loads includes a base frame, capable of transferring loads onto a support surface. A sliding element is slidably constrained to the base frame. An arm capable of moving the loads is hinged to the sliding element. A connection element has a first end hinged to the sliding element, and a second end constrained to the base frame in a mobile manner. Each of a pair of rod elements is hinged to the base frame and to the connection element to form an articulated quadrilateral. A first linear actuator is hinged to the base frame and to the connection element and to cause sliding movement of the sliding element relative to the base frame. A second linear actuator is hinged to the sliding element and to the arm to cause mutual rotation movement between the arm and the sliding element.

A crane for lifting and transporting loads includes a base frame, capable of transferring loads onto a support surface. A sliding element is slidably constrained to the base frame. An arm capable of moving the loads is hinged to the sliding element. A connection element has a first end hinged to the sliding element, and a second end constrained to the base frame in a mobile manner. Each of a pair of rod elements is hinged to the base frame and to the connection element to form an articulated quadrilateral. A first linear actuator is hinged to the base frame and to the connection element and to cause sliding movement of the sliding element relative to the base frame. A second linear actuator is hinged to the sliding element and to the arm to cause mutual rotation movement between the arm and the sliding element.

A method for moving a lifting device includes: in a presetting phase, presetting at least one target position for the lifting device; in a measuring phase, detecting an instantaneous geometry of the arm system; in a selection phase, selecting a target position specified in the presetting phase; in a comparison phase, determining a geometrical deviation between the geometry of the target position selected in the selection phase and the instantaneous geometry detected in the measuring phase; in a generation phase, generating at least one control command on the basis of the geometrical deviation determined in the comparison phase; and in a control phase, performing at least partial movement of the lifting device into the selected target position by actuating the actuators of the arm system with the at least one control command generated in the generation phase.

An engine hoisting assembly for supporting an engine comprises a ground supporting frame, a substantially upright member having a longitudinal axis, a boom operably connected to the upright member, lifting means to selectively move the boom up or down along upright member's longitudinal axis and engine connecting means to operably connect the boom to the engine. The boom is maintained at a substantial horizontal orientation when lifting means selectively moves boom up or down.

In general, this invention allows one to easily move a heavy object, via a lightweight portable lift. It can lift heavy electric wheelchairs, scooters to and from a vehicle. In addition, it can lift other heavy objects such as coolers, groceries, a toolbox, or lawn equipment. It is composed of a lightweight material and allows easy transportation and storage. It includes a foldable base, a hoisting arm and a power supply and motor.

In general, this invention allows one to easily move a heavy object, via a lightweight portable lift. It can lift heavy electric wheelchairs, scooters to and from a vehicle. In addition, it can lift other heavy objects such as coolers, groceries, a toolbox, or lawn equipment. It is composed of a lightweight material and allows easy transportation and storage. It includes a foldable base, a hoisting arm and a power supply and motor.

A device designed for the removal, storage, and installation of convertible hardtops from sport utility vehicles. The device is floor level and mounted on casters for portability. The device utilizes a platform and ratcheted gear apparatus to assist provide leverage and assist a single operator to remove or install a convertible hardtop form an SUV. The device also utilizes a tilting assembly to allow the operator to reduce the footprint of the device with the hardtop loaded, making it simpler to maneuver and store.