| 摘要 |
A levelling tool 10 has an elongate datum member 12 and a scraper member 14, said scraper being attached parallel to the datum member and extending from one end along a part of its length. The lower edge of the scraper is additionally parallel to the longitudinal axis of the datum member and may be bevelled or radiussed. The scraper may be attached to the datum member by releasable means 16,18 with provision, such as a spacer, for adjusting the depth of the scraper. Wheels or rollers may be provided on the datum member. When in use, with the datum member positioned on a guiding surface such as paving slabs, the scraper member is inclined with its lower edge trailing its upper edge. The datum member may contain a spirit level 20. |
