| 摘要 |
<p>1405474 Sliding shuttering for walls UDDEMANN BYGGTEKNIK AB 6 Sept 1972 [7 Sept 1971] 41423/72 Heading E1S A sliding shutter 7 for casting concrete walls is pivotally mounted on a pair of spaced horizontal stiffeners 9, 10 which are pivotally mounted on spaced upright posts 11, each of which depends from the shutter and carries at its lower end means for bearing against the wall 12 already cast, the bearing means being adjustable to displace the lower end of the post 11 towards or away from the wall, and thereby through the parallelogram linkage formed by the members 7, 9, 10 and 11 to change the inclination of the shutter 7. The shuttering may be annular, for the external shuttering of a tower &c, the internal, face being formed by a lining 3. The bearing means may be a wheel 14 on a screw 13 mounted on the post 11. The shutter is raised by a rod 8 and carries working platforms 17, 18, and is supported by reinforcement 4, 5 in the wall.</p> |
