Improvements in, or relating to Safety Automatic Devices for Cages and Lifts for Coal Pits, Mines and the like.

摘要

740. ConsidÞre, E. A., and Ives, H. B. Jan. 12. Hooks, automatic - release.-An automatic device for detaching mine cages &c. from their suspension gear comprises a releasing-hook 5 pivoted to the point of the main hook 4. The cage is released by pulling a rope 9 attached to the outer end of the hook 5, or by the hook 5 striking a pivoted plate 47 which partially closes a keyhole slot 33 in a plate 32.