Improvements in or relating to shoes for use with pit props and like mining equipment

摘要

987,051. Base plates for pit props. B. R. D. CO. Ltd. Feb. 3, 1964 [Feb. 14, 1963], No. 5946/63. Heading E1E. A circular shoe attached to a pit prop by a chain 12 and clamp ring 13 is centrally dished to receive the prop base. In a modification a dished shoe 18, Fig. 5, particularly for a pusher ram in a mine, incorporates an arcuate shroud 22 which locates the ram and chainattachment lugs 19, 20.