Abstract: Provided are a rotation joint capable of compensating for a mismatch due to thermal expansion and a semiconductor device having the same. The rotation joint can include a support member and a first contact member coupled to a first portion of the support member such that a surface of the first contact member is moveable relative to a surface of the support member adjacent to the first contact member. The first contact member can include solder material.

Abstract: A bale rack comprises an elongate horizontal frame mounted on wheels for movement along the ground, and a pair of bale supports extending along opposite sides of the frame. The bale supports are pivotable relative to the frame between a raised position, in which the bale supports serve to retain bales on the frame, and a load release position, in which the bale supports are downwardly and laterally inclined from the frame to allow a bale to roll from the frame to the ground. Latch mechanisms are provided for releasably retaining the bale supports in the raised positions, and counterweights are provided for urging the bale supports from the lowered positions to the raised positions, thus avoiding the use of springs, hydraulic devices or other relatively complicated mechanisms for this purpose.

Abstract: The invention comprises a farm wagon of the possum belly type which may be used as a bale hauler, a feeder wagon, or a general purpose farm wagon. With end pipes and connecting cables installed, two tiers of cylindrical bales may be hauled. With sides of open planking installed, the low height of the bed enables livestock to feed directy from the wagon. A second tier of sides may be added to give greater hauling capacity, or the sides and ends may be completely removed for general purpose hauling.

Abstract: A trailer for hay bales includes a center longitudinally extending frame member supported on a single axle having wheels at its opposite ends. The trailer is pivotal about the axis of the axle. Forwardly and rearwardly of the axle on opposite sides of the frame member are bale supports cantilevered to the main frame and extending laterally outwardly therefrom for supporting a total of four large round bales. The width of the supports is such that a pair of fork lift fingers can straddle the hay supports when a bale of hay is being transferred onto the support. A pair of center spacer telescopic posts are provided on the main frame between the bale supports.