Abstract: A corner bracket for use as part of a support system wherein a plurality of corner brackets are used in combination with connecting members in the form of lengths of 2.times.4 lumber, the corner bracket includes a three-sided hollow frame member wherein two of the sides are arranged so as to face one another in a substantially parallel manner with the third side being disposed therebetween and at a right angle thereto so as to define an enclosed channel. Each of the two first sides includes a generally rectangular opening which is compatibly sized to receive a length of 2.times.4 lumber. The third side has a top edge in common with the top edge of the first and second sides, while the lower opposite edge of the third side is elevated above the lower edge of the first two sides. This configuration creates a third opening which is also sized and arranged to receive a length of 2.times.4 lumber. The final length of 2.times.

Abstract: A corner bracket for use as part of a support system wherein a plurality of corner brackets are used in combination with connecting members in the form of lengths of 2.times.4 lumber, the corner bracket includes a three-sided hollow frame member wherein two of the sides are arranged so as to face one another in a substantially parallel manner with the third side being disposed therebetween and at a right angle thereto so as to define an enclosed channel. Each of the two first sides includes a generally rectangular opening which is compatibly sized to receive a length of 2.times.4 lumber. The third side has a top edge in common with the top edge of the first and second sides, while the lower opposite edge of the third side is elevated above the lower edge of the first two sides. This configuration creates a third opening which is also sized and arranged to receive a length of 2.times.4 lumber. The final length of 2.times.

Abstract: A dust-sealing assembly for a coupling for use in a fluid circuit in which a body member is movably mounted on a mounting plate, and a nipple-releasing mechanism is fixed to the mounting plate and embraces a sleeve member that is mounted on and extends from one end of the body member, the nipple-releasing mechanism being spaced from the one end of the body member. A compression spring is disposed about the sleeve member in the space between the body member and nipple-releasing mechanism for holding the body member relatively away from the nipple-releasing mechanism. A dust cover is disposed about the sleeve member and spring, and is disposed in the space between the body member and the nipple-releasing mechanism for deterring entry of foreign material into the space. The compression spring engages the dust cover and retains the dust cover in place.

Abstract: An automatic coupling device having a body member movably mounted on a mounting plate fixed to the implement, and a sleeve member movably mounted on the body member. A releasable device between the mounting plate and the sleeve member releasably retains a coupler nipple on the sleeve member, the nipple including a first valve element urged toward a closed position and being movable to an open position. A valve body is slidably mounted in a bore of the sleeve member, the valve body having a passage with an inlet end for connection to a fluid line, and being movable to a first position to preclude substantially relative movement of the sleeve member and body member for locking of the nipple in the releasable device, and being movable to a second position to allow relative movement of the sleeve member and body member for insertion of the nipple into the releasable device.