Improvements in and relating to forms or shuttering for the casting in situ of concrete structures, adapted to be faced with plastering, stone and like plastic dressings

摘要

323,281. West, W. Oct. 8, 1928. Moulding concrete surfaces in situ.-Undercut recesses are formed in cast concrete surfaces by the use of a ribbed flexible lining to the shutters. The lining may be of rubber 1 formed with dovetail-shaped projections 3. After casting, the shuttering Y is first removed and the lining is peeled off. The projections on the lining may be in the form of oppositely disposed teeth 5, 6, Fig. 4. The recesses in the surface form keyways for the plaster or may be used to receive anchor tiemembers attached to stone or like dressing for the walls.