| 摘要 |
A sliding bracket comprises a first part (1) for attachment to a support surface, and a sliding part (2) for attachment to a sheet (3), such as a roofing sheet, to be clamped to a support surface (5), the sliding part (2) being connected in a manner permitting limited sliding movement along the first part (1). The sliding part is provided with a tongue (24) permitting the sliding part (2) to be secured to the fixed part (1) or the support surface (5) by means of a nail, for instance, thus producing a fixed bracket. Alternatively only the fixed part (1) may be secured to the support surface, thus permitting the sliding part to absorb movements in the sheeting. A method of preparing roofing sheets for assembly comprises fitting brackets of the type described at specified distances along the assembly flange of the sheets. At the time of assembly the worker can then alter the function of the bracket from fixed to sliding, or vice versa, as required. |
