Anti-spill attachment for concrete shutter top - has inclined wall solid with longitudinal angle iron beam which is fixed to shutter top

摘要

The attachment stops concrete spilling to the front or back of the shutter, and makes it easier to control the hopper and the concrete flow. Less cleaning of the formwork is necessary and less deterioration of the top shutter profile occurs. The inclined wall (3) extends beyond the angle iron (5, 6) and has a return fold (7) at its top edge while the angle iron has a cross passage (8) and cover (9) to take rods for shutter bracing. A plate (13) fits into the U-section top of the shutter and bolts (12) pass through the plate and oblong holes (11) to fit the angle iron to the shutter top.