Improvements in moulds for use in the construction of floor slabs, wall panels, pavement lights, windows and the like of glass framed in ferroconcrete

摘要

397,371. Pavement lights ; casting in situ. DEUTSCHE GLASBAU-GES., 43, Lehderstrasse, Weissensee, Berlin. Jan. 16, 1933, No. 1472. Convention date, Jan. 16, 1932. [Classes 20 (ii) and 20 (iii).] Reinforced - concrete floors or the like having circular pavement lights bedded therein are constructed by using rectangular moulds e fitted together on a flat support, said moulds having circular tops c to support the lights. The sides of the moulds are concave and meet the plane of the circular top at an obtuse angle which is greatest at a corner of the square. The moulds may be removed when the concrete has set or may be left embedded therein.