Trapezoidal divider wall for use in shaft construction

摘要

A curtain wall (12) used to divide the shaft in a shaft construction (10) is made of panels (26) in the shapes of parallelograms. Side edges (28 and 30) of the panels (26) are received in channels (18 and 20) in the peripheral wall (16) of the shaft construction. These side edges are parallel to each other, and the perpendicular projections of each side edge are substantially non-overlapping with the other side edge. The result is that the panels can be lowered lengthwise into place and then rotated into the proper orientation. The panels can therefore be lowered through smaller openings than rectangular panels can, and they do not have to be lowered by "chivvying," as rectangular panels do.