Abstract: A tensioning device uses two perpendicular gears so that common hand tool such as wrenches or socket wrenches can be used to drive the gears to rotate a barrel having two oppositely threaded apertures. Shafts having complementary threads inserted into the threaded apertures and means for connecting chain, wire rope, cable, or straps will be extended or retracted when tools rotate the driving gear. End effectors on the shafts include hooks or clevises for securing cargo, pads for use as a jack, and ball ends for use as an adjustable mechanical linkage such as the top link of a three-point agricultural hitch. Load locks can secure the threaded shafts from unwanted rotation while in transit or in other service.

Abstract: A tensioning device uses two perpendicular gears so that common hand tool such as wrenches or socket wrenches can be used to drive the gears to rotate a barrel having two oppositely threaded apertures. Shafts having complementary threads inserted into the threaded apertures and means for connecting chain, wire rope, cable, or straps will be extended or retracted when tools rotate the driving gear. End effectors on the shafts include hooks or clevises for securing cargo, pads for use as a jack, and ball ends for use as an adjustable mechanical linkage such as the top link of a three-point agricultural hitch. Load locks can secure the threaded shafts from unwanted rotation while in transit or in other service.

Abstract: A tensioning device comprised of; a gear box containing a bevel gear assembly inside the gear box with one gear attached directly to a barrel which passes through the gear box and threaded shafts at either end of the barrel. Inside the gear box is a guide which is placed such that a drive gear and the barrel gear are engaged when assembled and a socket wrench receptacle is part of the drive gear. The threaded shafts move in and out of the barrel based on the rotation of the gear. The tensioning device uses direct gearing of the rotational motion of the drive gear to rotate the barrel causing the shafts to be linearly displaced tightening or loosening a chain, cable or strap.