Air duct grills

  • Inventors:
  • Assignees: G B Ind Ltd
  • Publication Date: January 29, 1975
  • Publication Number: GB-1382198-A

Abstract

1382198 Ventilators G & B INDUSTRIES Ltd 1 Feb 1973 5196/73 Heading F4V A grille assembly for insertion into the end of an air supply duct comprises a louvred plate 10, a first damper behind the plate 10 and having pivotally mounted slats 17 simultaneously operable by a lever 25 which projects through an opening in the plate 10, and a second damper behind the first damper and having pivotally mounted slats 42, the plate 10 and first and second dampers being rigidly interconnected for insertion as a unit into the duct.

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