Description
This class includes (1) structures supported in spaced relationto the earth"s surface for supporting a workman adjacenta structure being worked on, (2) means for climbing comprising astile having steps or rungs, (3) means ancillary to normal egressmeans to traverse a vertical distance to facilitate quick escapefrom a structure in case of emergency not elsewhere provided for and(4) torso harness, for rescue or escape operations, with or withouta tether anchored to the work or to a worker"s support.