Abstract: 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.

Abstract: In a horizontal combination weighing device in which weighing units are arranged next to each other, a horizontally long base is equipped with the weighing units each including a weighing hopper and is supportably mounted to a support frame in a manner that the base is pivotable around a fulcrum vertically extending at lateral one end of the base.

Abstract: A lift system includes a block and tackle pulley system movable along a track and carrying first and second hooks at a common attachment axis. The first hook is attached at a front end of the saddle while the second hook is attached to the back end of the saddle. Once the saddle is lowered onto the horse the inward tension of the hooks caused by the weight of the saddle is released allowing the hooks to be removed from the saddle without human intervention. The lift system accommodates a range of saddle sizes and weights.

Abstract: The present invention is a hardtop removal and storage system and method that comprises a front and rear support arm. The support arms may be mounted to a ceiling such that they are allowed to pivot together and apart. A vehicle may be positioned such that the rear support arm is in contact with a removable hardtop configured to be used with the vehicle. The vehicle hardtop may then be removed by raising the hardtop away from the vehicle and causing the front and rear support arms to pivot underneath of the hardtop. Once positioned in such a manner, the front and rear support arms may retain the hardtop, permitting the owner or driver of the vehicle to move the vehicle out from underneath the invention while the hardtop remains supported by the front and rear support arms.

Abstract: A lifting tool (2) for use in lifting components (1,5) from a wind turbine gearbox during service or repair comprises a frame-like structure comprising interconnected beams (4,6,8,8,10,12,20,22,24,26,28) for securing to the gearbox housing once an upper housing part has been removed to provide an opening to the gearbox interior, the tool being secured to the gearbox at a periphery of the opening, and further comprising one or more pulleys (36) mounted on the frame-like structure, a lifting chain, cable, wire or rope extending over the pulley or pulleys attachable to a component (1) within the gearbox, the frame-like structure comprising a number of inter-connectable modules.

Abstract: A system and method for conveying wireline tools between a wellsite and a logging truck and for assembling the tools at the wellsite is disclosed. The conveying system includes a taut line extending between a wellsite and the logging truck, a mechanism for anchoring the taut line at the wellsite, and a mechanism for tensioning the taut line. A trolley on the taut line is attachable to a logging tool and operable to convey the tool between the truck and the wellsite. Preferably, the logging tools are stored in a tool bed adjacent the rear axle of the logging truck so that they can be easily displaced and connected to the trolley for conveyance along the taut line to the wellsite. At the wellsite, the operators use a remote winch control for controlling the rotation of the logging cable winch and the position of any tools at the wellsite connected to the logging cable. A spanner is provided which permits the operator to connect two tools together (or disassemble) using one hand.