Metal fatigue of a spacious ladder Broken step of a spacious ladder; top view of the eyes, clearly indicating the irregular shape of the holes and the rough internal surface; microphotograph, 150 x enlarged, shows that the structure can be improved after prolonged annealing, 18 hours; from the report on an accident of a port worker with fatal outcome on board the ss Kilbergen dated 19 April 1947 Date: 19 April 1947 Keywords: industrial accidents, cast iron, ladders, metal fatigue, enlargements

---

Size: 2230px × 3137px
Photo credit: © BNA Photographic / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: