Abstract: Telescoping rigid frame/scissor conveyors with suspension structures to accommodate less than totally flat surfaces, and for easy and ergonomic repositioning. Such conveyors are formed of a plurality of telescoping frame segments which may be positioned at any number of desired nested/unnested configurations. The frame segments bear a lazy tong or scissors conveyor structure which assures uniform roller spacing, and rollers positioned at one height along the conveyor rather than at different heights for each frame segment. The conveyors are adapted to bear greater weight than conventional lazy tongs conveyors, but contain suspension systems in order to conform to irregularities in factory and warehouse floors and slabs and for easy movement.

Abstract: Expandable powered conveyors featuring a number of roller power motors located externally of the rollers. The conveyors include a pair of lazy tong trusses which may be supplemented, as desired, by telescoping rigid frames, leg structures or other structures. The motors are mounted between the trusses so that their drive pulleys are located substantially coaxial to the middle connection points of the scissor bars in the trusses and thus maintain a substantially constant distance from rollers connected to those scissor bars. Drive belts connect the motor drive pulleys to power such rollers. The conveyors also include a number of transfer pulleys which are also mounted substantially coaxial to corresponding middle connection points of the trusses. A single motor may thus power one or more rollers directly, and other rollers indirectly via motor drive belts and transfer drive belts.

Abstract: Telescoping rigid frame/scissor conveyors. Such conveyors are formed of a plurality of telescoping frame segments which may be positioned at any number of desired nested/unnested configurations. The frame segments bear a lazy tong or scissors conveyor structure which assures uniform roller spacing, and rollers positioned at one height along the conveyor rather than at different heights for each frame segment. Counterintuitively, the increased structural complexity is more than outweighed by the benefits resulting from the uniformly positioned rollers of a uniform height, which are thus adapted to convey articles in a reliable and jam-free fashion unlike previous expandable rigid frame conveyors. Conveyors according to the present invention may contain automatic locks to prevent overextension, powered rollers and motive devices for automatic and reliable extension and retraction.

Abstract: An improved fin stabilized projectile including multiple stabilizer fins upon a stabilizer unit situated at the aft end of the projectile is provided, the improvement wherein the stabilizer fins are joined into the stabillizer unit by an injection molded engineering grade polymer.