| 摘要 |
A permanent sill or hob mould for creating a rebated sill or hob on the upper surface of a concrete building slab; said mould comprising side panels maintained in a parallel, fixed spatial relationship by a plurality of 5 transversely-arranged spacer elements; said side panels being shaped to provide a desired cross-sectional shape of said sill or hob, including an outer, lowered rebate and an inner raised part which impedes any tendency for water to flow inwardly into a structure, said rebate being made to accommodate a wall, window or other structure; said sill or hob mould 10 being supported on a plurality of chairs fixed to formwork built for the creation of a concrete building slab during the fixing of steel reinforcing bar, and filled with concrete during the pouring of said concrete slab; means being provided to facilitate filling of said sill or hob mould with concrete. Sheet 2 of 8 A2( Fig 2 2 %556 3,27 Lao 7le7 |
