Abstract: A protective leg sleeve. The protective leg sleeve includes a flexible panel having a first lateral edge opposite a second lateral edge. An upper strap is disposed on an upper side of the flexible panel at the first lateral edge, such that the upper strap can removably secure the first lateral edge to the second lateral edge. A lower strap is disposed on a lower side of the flexible panel at the first lateral edge, such that the lower strap can removably secure the first lateral edge to the second lateral edge. The flexible panel defines a closed configuration having an open upper end and an open lower end, wherein a channel extends therebetween. A plurality of sleeves, each having an aperture extending through a longitudinal axis thereof, are removably securable over each of the upper strap and the lower strap.

Abstract: Fixed conveyor slats (12) in the nature of beams extend over a window in a support framework (70, 72, 74, 76, 86, 88) for the movable and fixed slats (10, 12) of the reciprocating slat conveyor. The fixed slats (12) support the movable slats (10), including in the region of the window. The fixed and movable slats (12, 10) are box beams, providing them with strength and stiffness in the region of the window. The fixed slats (12) are covered by planks of bearing material (46). Side portions (14, 16) of the movable slats (10) set down on side portions (50, 48) of the planks of bearing material (46). The planks of bearing material (46) are connected at one end only to the fixed slats (12). The bearing material (46) is capable of withstanding the heat of hot asphalt concrete and protects the fixed slats (12) from contact with the asphalt concrete.

Abstract: A trailer (T) and a dock (D) are provided with substantially identical slat conveyors (10, 12). Each conveyor (10, 12) has alternating conveyor slats (36, 36?) and lifting/holding slats (38, 38?). The trailer (T) is backed up to the dock (D). Upper portions of the lifting/holding slats (38, 38?) are coupled together at their ends. The confronting ends of the conveying slats (36, 36?) are also coupled together. A mechanism carried by the dock (D) raises and lowers the upper portions of the two sets of lifting/holding slats (38, 38?) a drive mechanism carried by the dock (D) where it reciprocates both sets of conveying slats (36, 36?).

Abstract: Beams (24, 26) are used to guide the rear end of a trailer (T) into contact with bumpers (20, 22) on the rear end of a dock (D). Longitudinal beams (32, 34) include hydraulic cylinders that are operated for extending and retracting the beam (32, 34). The trailer (T) is backed up against sloping surfaces (100) on the beams (32, 34). Contact between the sloping surfaces (100) and a transverse beam (104) at the rear end of the trailer (T) cams the beam (104) into a position where hooks (102) on the outer ends of the beams (32, 34) can hook onto a shoulder (106) on the trailer beam (104). The beams (32, 34) are then retracted. This moves the beams (32, 34) upwardly onto supports (78, 80), raising the trailer beam (104) a proper height. Continued retraction of the beams (32, 34) pulls the trailer beam (104) into contact with bumpers (20, 22) on opposite sides of the rear end of the dock (D).

Abstract: An elongated plastic slide bearing (10) comprises a top (30), sidewalls (32, 34) depending from the top (30), and connecting to walls (36, 44, 48 and 38, 46, 50) that form laterally inwardly extending recesses (40, 42). Lock ribs (62, 64) extend upwardly and inwardly from the inner walls (44, 46) of the recesses (40, 42) to upper edges (66, 68). The upper edges (66, 68) are spaced below the bearing top (30). The bearing (10) is adapted to be set down onto a support beam (14) that includes laterally outwardly projecting lock flanges (22, 24) at its top. The lock ribs (62, 64) contact the lock flanges (22, 24). When the bearing (10) is pushed downwardly, the lock ribs (62, 64) bend outwardly and allow the lock ribs (62, 64) to move into a position below the lock flanges (22, 24). When that happens, the lock ribs (62, 64) assume substantially unstressed positions in which their upper edges (66, 68) are below the lock flanges (22, 24).

Abstract: Separate manifold blocks are connected to the ends of tubular piston rod end portions of linear hydraulic motors that are parts of a drive assembly for a reciprocating slat conveyor. The manifold blocks are removably connected together by bolts and when connected complete passageways in the manifold block assembly that connect the linear hydraulic motors with each other and with pressure and return conduits. The end portions of the linear hydraulic motors are connected to transverse mounting frame members by spaced apart clamp assemblies. The clamp connections stiffen the end portions of the linear hydraulic motors and minimize deflection at the centers of the linear hydraulic motors.

Abstract: Fixed conveyor slats (12) in the nature of beams extend over a window in support framework (53, 100, 102, 116, 118) for the movable and fixed slats (10, 12) in a reciprocating slat conveyor. The fixed slats (12) support the movable slats (20), including in the region of the window. The movable slats (10) are in the nature of box beams, providing them with strength and stiffness in the region of the window. At the rear end of the conveyor, the movable slats (10) move onto support brackets (120) which prevent the rear end portions of the slats (10) from being damaged when they are in a position overhanging a rear wall (84) and material is dropped from above down onto the rear end portions of the slats (10).

Abstract: Fixed conveyor slats (12) in the nature of beams extend over a window in support framework (53, 100, 102, 116, 118) for the movable and fixed slats (10, 12) in a reciprocating slat conveyor. The fixed slats (12) support the movable slats (20), including in the region of the window. The movable slats (10) are in the nature of box beams, providing them with strength and stiffness in the region of the window. At the rear end of the conveyor, the movable slats (10) move onto support brackets (120) which prevent the rear end portions of the slats (10) from being damaged when they are in a position overhanging a rear wall (84) and material is dropped from above down onto the rear end portions of the slats (10).

Abstract: A plow (P) sits down on movable slats (10) of a reciprocating slat conveyor formed of the movable slats (10) and fixed slats (12) which are between the movable slats (10). The movable slats (10) and fixed slats (12) define valley regions between the movable slats (10). The plow (P) has fingers (92, 106) which extend into the valley regions. During the unloading operations, the plow (P) is moved rearwardly by the moveable slats (10), together with the load (L) that is on the conveyor. When the plow (P) reaches the rear end of the conveyor, it tips rearwardly and discharges the remaining portions of the load (L) off from the conveyor. Then, a teather (T) is wound onto a winch and used for pulling the plow (P) forwardly back into a forward parked position (FIG. 15).

Abstract: Transverse frame members (14, 16) extend across and are connected to longitudinal frame members (10, 12). Frame member (14) divides longitudinal frame members (10, 12) into major and minor parts (20, 22, 24, 26). The minor parts (24, 26) are braced by gussets (70, 72) which extend between the minor parts (24, 26) and a vertical web portion (68) of the transverse beam (14). The minor parts (24, 26) of the frame members (10, 12) and the central portion of the frame member (14) form a nook (76) in the cylinder components (80, 82, 84, 102, 104) are received. Piston rod portions (92, 94, 96) of the assembly of linear motors extend from the cylinder component portions to guide bearings (100) mounted in openings (56, 58, 60) formed in the vertical web (54) of the second transverse beam (16). Bolts are used to connect the inner corner portions of the assembly of linear hydraulic motors to mounting pads (34, 36).

Abstract: A threaded nipple (26) at the closed end of a linear hydraulic motor (12) is received within a recess (82) in a frame member (78). Single clamp members, or individual clamp members (88), have recesses (92) that receive lower portions of the nipples (26). Bolts (94) extend through the clamp members (88) and screw into threaded openings in the frame member (78). This clamps the nipples (26) between the frame member (78) and the removable clamp members (88). End members (22) at the rod ends of the cylinders (12) include keys (66) that are received within recesses (80) formed in another frame member (76). Bolts (76) extend through the end member (22) and screw into threaded openings (84) in the member (76). A mounting frame has transverse mounting frame members (74, 102, 74?, 102?) that are used for mounting the drive assembly in an installation. The mounting frame members (74?, 102?) may have end portions (208, 210, 212, 214, 240, 242) that serve as cells in a trailer installation.

Abstract: The invention is directed to a system and method for extending the life of a bluish, greenish, or reddish colored gel, comprising a filter coating situated between a light source and a colored gel, which filter coating has a reflectance band falling in the same wavelength region of the visible light spectrum as the absorption band for the colored gel such that burning or bleaching of the color is prevented or delayed.