A self-propelled vehicle used to lay pipe sections within trenches located on sloped terrain, and a method for using it, including: an undercarriage carrying a vehicle chassis and capable of climbing sloped terrain; a rotating platform which can be maintained level relative to the sloped terrain; and a boom with an angled boom head, capable of using two independent winch cables to lift and position individual pipe sections having differing lengths and diameters. The vehicle may be used to sequentially lift two or more pipe sections, one at a time, and to swing and position the pipe sections in a trench, end-to-end.

A vehicle for delivering packages, comprising a tractor comprising a motor, a pair of front wheels, a rear wheel, and a rail between the pair of front wheels and the rear wheel, and a removable container comprising a space for storing packages where a bottom of the container is configured to fit over and mount to the rail.

A self-propelled flat-bed trolley is provided which includes a motor for locomotion and including a load-bearing platform and an articulated crane with a telescopic arm adapted to load and unload articles to and from the platform. The crane is maneuverable to locate the center-of-mass of the articles within a base of support for the trolley, with the trolley further including a controller for controlling the motor and articulated crane.

A balanced lifting device comprises at least two lifting arms arranged opposite to each other, each lifting arm comprises a balance arm and an actuating arm driving the balance arm to move, the balance arm is rotatably connected to the actuating arm at a rotatably connected part, and a first drive device is arranged between the balance arm and the actuating arm to drive the balance arm to a horizontal state throughout the lifting process. A vehicle-mounted exchange box system and a multi-oil cylinder synchronization method are also provided in the present invention. A cargo box may be lifted stably to improve the operation safety, the vehicle utilization rate is improved by saving the waiting time for loading and unloading in the transfer process.

A portable crane formed of composite members. A composite mast is coupled to a composite boom. A boom end housing removably couples at a top of the mast and includes an enclosure. A first end of the boom couples within the boom end housing. A boom pivot couples to the boom end housing and couples the boom to the mast. An angle adjuster releasably secures the boom at a desired angle relative to the mast. In implementations an end cap is included at a second end of the boom, coupled to a sheave with a pin, the end cap covering a terminal end of a second end of the boom and extending along both sides of a slot in an upper surface of the second end and along a portion of a first side of the second end and along a portion of a second side of the second end.

Lifting system (1) for mounting on a loading surface of a vehicle (3), comprising at least one first lifting arm system (4) on one side of the loading surface in the transverse direction of the vehicle (3) and at least one second lifting arm system (5) on the other side of the cargo area in the transverse direction of the vehicle (3). The lifting arm systems (4, 5) comprises at least one foundation (6) with which the respective lifting arm system (4, 5) is connected to the vehicle (3), The lift arm systems (4, 5) each comprise at least one lifting arm (9) and at least one operating mechanism (15). The lifting device (1) comprises at least one lifting boom (13) extending between the lifting arm (9) in the first lifting arm system (4) and the lifting arm (9) in the second lifting arm system (5), The operating mechanism (15) is operated with at least one actuator (27). The actuating mechanism (15) comprises at least one first operating arm (16), which is rotatably connected at one end, or end thereof, to the base (6) and at its other end, or its proximity is connected to the lifting arm (9) via at least one arm link (22). The operating arm (16) and the arm link (22) are pivotally connected to each other and the arm link (22) is pivotally arranged relative to the lifting arm (9). The operating mechanism (15) further comprises at least one operating link (25) which is pivotally connected to the operating arm (16).

A technique is directed to a vehicle assembly. The vehicle assembly includes a vehicle body having a top deck. The vehicle assembly further includes a basket affixed to the top deck. The vehicle assembly still further includes a crane coupled to the vehicle body. The crane is constructed and arranged to lift a hazardous object and place the hazardous object into the basket.