| 摘要 |
<p>The invention concerns an anchoring device of fume vents to the top of a flue, which comprises a sleeve (14) having a base (15) cut at an angle corresponding to the slope of the roof and made to be fixed to a chimney weathering support (13), and an intermediate part provided with longitudinal slots (16) forming a number of radially expanded (18) vertical strips (17), relatively flexible and contractible, and provided to engage the internal surface of a fume vent (12) when the latter is fitted onto the sleeve to be placed in position.
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