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Publication of GB362247ApublicationCriticalpatent/GB362247A/en
362,247. Floors. DIESPEKER & CO., Ltd., 57, Holborn Viaduct, and CHATWIN, A. S., 142, Victoria Road, Wood Green, both in London. Feb. 14, 1931, No. 4714. [Class 20 (iv).] Precast reinforced concrete beams 1 are laid side by side, and slabs or tiles 5 of asbestos-cement or other material are placed on edge in recesses 6 in the flanges to form air spaces 7 and channels for concrete 9 which may be reinforced by bars 10. A top layer 11 of concrete may be added.