Improvements inthe construction of floors, roofs, decks of bridges, foundations of roads, tracks, footpaths, yards areas, quays and the like

摘要

13,182. Frost, P. B., and Rings, F. May 29. Foundations. - Consists in laying beams of the shape shown in Fig. 1 side by side to form foundations for roads and paving. The beams are made of plain or reinforced concrete, or terra cotta. For paving, the surface material is also filled in between the beams.