GB247616A - Improved interfitting blocks and the like for roads, pavements, and the like - Google Patents

Abstract

247,616. Cowper, J. S., and Cowper, E. O. Sept. 19, 1924. Paving-blocks. - Reversible paving-blocks of rubber or composite rubber are provided with interfitting parts of rounded rib and rounded groove formation, adapted to produce a bonding action between flat abutting surfaces of adjacent blocks. Fig. 1 shows one construction in which each block has two rounded ribs b on one side and one rib at one end, the other side and end being formed with corresponding grooves c. These ribs and grooves may be vertical, as shown, or may be oblique. They may also be tapered. In another form, the grooves and ribs are larger, and each side and end has only one rib or recess. Fig. 3 shows another form in which the rib band groove c are horizontal. Fig. 4 shows a construction in which a series of blocks interfit with a long strip d. Fig. 5 shows a construction in which the blocks are hooked together, each being formed with upstanding hooked parts b along one side and end and with depending hooked parts on the other side and end. Fig. 6 shows a tapered pin e used for inserting between blocks to force them together. The blocks may be made in layers of different grades of rubber. Fig. 7 shows a block in inverted plan to illustrate grooves f provided for drainage. These blocks may be laid on concrete, cement, or like slabs, or upon wooden sleepers provided with pads or lengths of felt, rubber, or suitable materials, to prevent displacement. The sleepers may be fitted with rings to enable sections of the road surface to be lifted bodily.