Abstract: The safety device for a person in an underground duct, tunnel or the like, particularly for a person in a sewer pipe, comprises a guide rail attached by a plurality of spaced fasteners to the roof of the duct or tunnel and a traveling body movable on and along the guide rail which is attached with a safety tether to a safety belt worn by the person. The traveling body is a hingedly or pivotally openable and closable end piece device located at or near one end of a safety rod which is provided with a retaining eye for the safety tether and with an end piece handle at its other end.

Abstract: A safety ladder comprises a vertical central ladder stringer and a plurality of horizontal rungs attached thereto, wherein the central ladder stringer has a substantially C-shaped cross section with a front longitudinal slot, a rear transverse piece lying opposite to the longitudinal slot, this rear transverse piece having rounded longitudinal edges. The rungs are attached from the outside to the central ladder stringer and are bent with their free outer members forward. In order to provide a better distribution of the climbing forces without impairing any corrosion protection measures or obstructing the interior of the longitudinal slot, the rungs are provided with a preferably equal sided, trapezoidally shaped recess for the rear transverse piece, by which the rungs sit riderlike on the central ladder stringer contacting only in the vicinity of the longitudinal edges of the ladder stringer and the rungs are attached to the central ladder stringer by a fastening means.