Improvements in or relating to supports for dust barriers for use in colliery workings

摘要

927,949. Brackets. S.W.M. (MACHINERY) Ltd. Jan. 11, 1962 [Jan. 14, 1961], No. 1640/61. Class 52 (5). [Also in Group XXI] Brackets for mounting shelves on girder arches consist of two plates 14 clampable to the girder 23 by means of shouldered rods 24a, 24b and nuts 26 and having permanently fixed inwardly projecting studs 17. Shelf bearers are supported on tongues 28. The plates may be joined in U-form by a connecting web.