Automatic Safety Suspending Apparatus for Pit Cages, Hoists and the like.

摘要

17,154. Paton, T., and Williamson, P. Jan. 15, 1914. Strip and thin-plate springs.-Springs 29 of the shape shown in Figs. 5 and 6, are described in connexion with a lift well to cushion the fall of the cage, by engagement with the arms of the safety-suspending apparatus.