| 摘要 |
The invention relates to a scraper bar 10 for screed levelling comprising a hollow tapered or wedge profiled section with a rounded or bull nose working edge (17 figure 1b) that contacts the screed. The scraper bar may be made from aluminium and further comprise a demountable operators handle 15 fitted to a demountable bar clamp (29 figure 2a) and preferably include visual reference markings for blade angle alignment. A later embodiment relates to a screed levelling kit comprising said scraper bar with a plurality of reference bars (12 figure 5) and support pegs (13 figure 50) that support the reference bars and on which the scraper may rest and level the cement to the desired height. The reference bars may be rectangular and may incorporate connector elements (28 figures 4a-d). |
