Abstract: A multi-task capable work assist vehicle is designed for transporting an operator and items to be handled by the operator and for elevating the operator with such items supported upon a load tray elevated with the operator. Preferably the load tray is mounted for positioning along a telescoping mast which supports and elevates the operator. A load deck or load platform is provided on a body of the vehicle in addition to the load tray so that items such as packages, tools, parts, merchandise and the like can be carried by the vehicle. Load shelves may also be provided adjacent the load deck to add flexibility and capacity to the load carrying capability of the vehicle. Uses of the vehicle include order picking, in-house service maintenance, stock management, cargo delivery and the like. It is designed to be compact in size and highly maneuverable for use in narrow storage aisles and tight quarters.

Abstract: A roll conveyance device for conveying rolls and attaching or detaching the rolls in a roll applying apparatus includes guide pillars, and a roll rest having a plane on which a plurality of the rolls are positioned. The roll rest is movably supported by the guide pillars and has two mutually divisible sections so that the roll rest is foldable. A roll rest moving device vertically moves the roll rest.

Abstract: A walking dragline excavator massive hollow internally reinforced base frame has built-in annular rail girder means over which annular track means are carried for running thereon of roller means adapted for supporting the revolving frame on the annular track means. Load stress distribution between the base frame and the revolving frame is attained by having an annular area contiguous to the perimeter of the base frame of greater resilient flexibility than the remainder of the base frame. Means comprising either bolts or clips are provided for releasably connecting the track means to the base frame and for permitting load stress relief circumferentially directed relative movement of the track means and the base frame under load transmitted through roller means by the revolving frame during load lifting and operational revolving of the revolving frame.