Abstract: The present invention provides a material handling device comprising: a support trailer configured for movement thereof; a material holding device pivotally connected to the support trailer, the material holding device configured for reversible rotational movement between a first lowered orientation and a second elevated orientation; an accessory support pivotally connected to the material holding device, wherein the accessory support is coupled to the material holding device at a location wherein the accessory support translates when the material holding device is reversably moved between the first lowered orientation and the second elevated orientation; and a linkage system operatively interconnecting the support trailer, the material holding device and the accessory support, wherein the linkage system is configured to substantially maintain a desired orientation of the accessory support during reversible rotational movement of the material holding device.

Abstract: A hydraulic platform lift, having hydraulic pump means and first and second hydraulic cylinders each having a piston member therein, each operatively coupled to a respective side edge of a platform to permit raising and lowering of the platform. A positive displacement valve is further provided, with the hydraulic platform lift and comprises a pair of juxtaposed cylinder members, each containing a longitudinally-movable piston, such pistons operatively coupled to each other so that movement of one piston causes an equal movement of the other. The positive displacement valve is adapted, when the pump means provides pressurized hydraulic fluid via a respective aperture to a first side of each of the pistons, to cause the pistons to be displaced an equal distance causing an equal egress of hydraulic fluid from the cylinder members via a respective aperture.

Abstract: An apparatus for depositing long pieces of material, such as pipes, rods, etc., in a shelf unit that has a number of receiving spaces for the long pieces of material. The apparatus includes a movable tray-like receptacle that is open at its ends and conveys the long pieces of material. A drive mechanism is provided for introducing one of the ends of the receptacle into the receiving spaces. The receptacle is equipped with CATERPILLARS that are guided over chain wheels provided at the ends of the receptacle.