Abstract: A deck for the roof of a grain bin includes a plurality of deck units each having a plate having an upper face and a lower face and openings spaced from each other and adjacent each longitudinal edge of the plate. The spacing of some of the openings is substantially the same as the spacing of openings in the roof whereby the plate may be attached to the roof. A pair of ring segments extend substantially perpendicular to the elongate plate and rest upon the plate. Openings are in the ring segments and at least one of which is aligned with openings in the plate whereby the ring segments may be attached to the upper face of the plate. A riser extends upwardly from the ring segments opposite the plate, and the riser and ring segments are attached. A deck plate is attached to the riser opposite the ring segments.

Abstract: A grain bin and deck assembly includes a generally cylindrical grain bin having an inclined roof and a substantially vertical cylindrical side wall the top of which is located adjacent to the bottom of the inclined roof, and a deck encircles at least a portion of the cylindrical side wall beneath the bottom of the inclined roof and the deck is positioned to permit access to vents on the roof. The deck is mounted to and supported on the exterior of the side wall and its side wall stiffeners which stiffeners are spaced from each other and extend substantially vertically over at least a portion of the height of the cylindrical side wall and adjacent the top of the cylindrical side wall. The deck is fastened to the stiffeners of the side wall by a support assembly which includes mounting plates having a width that extends across the width of the stiffeners, and the mounting plates have plural rows of holes which are arranged to overlie stiffeners of differing widths.

Abstract: A deck for the roof of a grain bin includes a plurality of deck units each having a plate having an upper face and a lower face and openings spaced from each other and adjacent each longitudinal edge of the plate. The spacing of some of the openings is substantially the same as the spacing of openings in the roof whereby the plate may be attached to the roof. A pair of ring segments extend substantially perpendicular to the elongate plate and rest upon the plate. Openings are in the ring segments and at least one of which is aligned with openings in the plate whereby the ring segments may be attached to the upper face of the plate. A riser extends upwardly from the ring segments opposite the plate, and the riser and ring segments are attached. A deck plate is attached to the riser opposite the ring segments.

Abstract: A curvilinear stairway construction for mounting to a curvilinear wall includes a plurality of stringers which are mountable one above the other and which are normally straight, but bend such that the curvature of the stringers is substantially concentric to the curvature of the wall when the stringers are mounted by the steps to the wall. Reinforcing means extend in opposite directions from the plane of the stringers adjacent the longitudinal edges of the stringers. The ends of the stringers contain a plurality of apertures for directly attaching the stringer ends together and the apertures and reinforcing means are positioned so as to allow horizontal movement of the stringer ends relative to each other to adjust for differing degrees of curvature of the wall.