GB400948A - Improvements in and relating to means for supporting reinforcing mats in concrete roads, buildings and like structures - Google Patents

Abstract

400,948. Reinforced concrete. DUNKER, J. H., Mole House, Esher Road, Walton-on-Thames. May 2, 1932, No. 12617. [Class 20 (iv).] A supporting member for positioning reinforcing mats or bars within concrete structures comprises a base member having an upstanding projection, the upper end of which is provided with a fork adapted to engage by snap action the portion of the mesh or bar to be supported. The fork is adapted to be opened out in the process of inserting the mesh or bar, but tends to return to its original position after the mesh or bar has been inserted. As shown in Fig. 1, the member comprises a pair of strip metal members 7, 8 having their lower ends 9, 10 bent outwardly to provide a base member and with their main parts connected by rivets, bolts, welding, &c. The upper ends of the strips are opened out to provide the fork 12. In a modification, the support is made from a single strip 19, Fig. 3, having its upper end divided to provide tbree parts, of which two parts 22 are bent in opposite direction to the other part 23 in order to provide a fork. The upper edges of the fork are bent back as at 24, 25 to facilitate entry of the reinforcement into the fork, and also to permit, where desired, a securing wire to be wrapped around the ends of the fork. The securing wire may, alternatively, be passed through holes in the supporting member or completely around such member. The forked members may engage only partially a reinforcing bar.