| 摘要 |
715,843. Shuttering for casting in situ, columns &c. in walls etc; concrete stanchions. O'SULLIVAN, E. Feb. 11, 1953 [Feb. 13, 1952], No. 3898/52. Classes 20 (1) and 20 (2) A concrete stanchion, isolated or in a wall, is constructed by casting a hollow shell in sections 42 in a mould having a cavity forming core 30, Fig. 2, and filling the interior with concrete to form a permanent core 50. The shell may be a dry mix and the core a liquid mix. Reinforcement 48 is placed in the shell before filling it with concrete and extends into a recess 41 in the foundation. The mould is similar to that described in Specifications 594,897, 612,871 and 683,222, but has internal projections on the end plates which form recesses in the stanchion sections across which reinforcing rods 43 are laid to support the mould for casting the next section. The joints 51, 52, 53 for the core 50, shell 42 and reinforcement 48 respectively are staggered. The concrete of a floor 56 may be run into the stanchion shell as shown at 57. The cavity forming core 30, Fig. 2, may be of sheet-metal and open at the base and have a hook-shaped part 33 to accommodate the supporting cross bar 32 having locating collars 37. A handle 34 is attached to the cross bar by chains 35. Specifications 550,564, 703,715 and 707,989 also are referred to. |
