Abstract: An order picker truck includes an extendible mast, and a load platform slidably fixed relative to the extendible mast. An operator platform is slidably fixed relative to the load platform, and a load former is fixed to the operator platform. The load former defines a volume over a portion of the load platform to guide an operator building the load and stabilize the load on the load platform.

Abstract: An order picker truck includes an extendible mast, and a load platform slidably fixed relative to the extendible mast. An operator platform is slidably fixed relative to the load platform, and a load former is fixed to the operator platform. The load former defines a volume over a portion of the load platform to guide an operator building the load and stabilize the load on the load platform.

Abstract: A lift truck mast arrangement minimizes stresses occurring in mast members using rearward chain anchor placement to apply a rearward counterbalancing moment to the mast so as to create a bending moment in portions of the mast below the instantaneous position of the load carriage which is substantially equal to the bending moment then occurring in portions of the mast above the load carriage.

Abstract: Elevations of a lift truck load carrier relative to shelves of a storage rack are accurately indicated by photosensor means on the load carrier operated by light reflected from reflectors on the storage rack. Raising and lowering the load carrier rotates the shaft of a retractable cable reel. Photosensor signals operate a clutch which connects the reel shaft to rotate a potentiometer over a limited range of heights surrounding the desired load carrier heights for each shelf in a vertical stack of shelves.

Abstract: A counterbalanced lift truck mast is adjustable to a plurality of discrete different longitudinal positions between the truck load bearing wheels to overcome additional counterweighting requirements or load de-rating if various load manipulators position the load at varying distances from the load wheels. The load bearing wheels are driven through separate very narrow gear train housings to provide adequate space for mast adjustment.

Abstract: The fork carriage of a side-loader truck is journalled for rotation about a vertical axis between two arms, one above and one below the carriage, which transmit lateral load moments to a narrow vertical member. A vertically-extending torque shaft journalled on the vertical member carries gears on its opposite ends. The gears engage laterally-extending racks spaced widely vertically apart on a rearward carriage, so that lateral load moments apply minimum forces to the racks, and rotation of the torque shaft also serves to laterally position the vertical member and the fork carriage. The rearward carriage may comprise an elevatable, mast-guided laterally-fixed carriage, or an intermediate carriage may be interposed between the vertical member and the laterally-fixed carriage to provide greater lateral load extension. An intermediate carriage having a roller arrangement insuring adequate support at any lateral load position is shown.