Quick release ventilated fire stop plate

A ventilating mounting for a chimney flue comprises a slotted mounting plate 1, a mechanical heat sensitive release mechanism and a top closure plate 4 or 7. In the first embodiment the top closure plate is mounted by resilient brackets 2 arranged to hold the closure plate 4 above ventilation slots...

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Bibliographische Detailangaben
1. Verfasser:	RAY WILLIAM JOHN ANDREWS
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BUILDING CEILINGS COMBUSTION APPARATUS COMBUSTION PROCESSES ENGINEERING ELEMENTS AND UNITS FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS FIRE-FIGHTING FIXED CONSTRUCTIONS FLOORS FLUES GENERAL BUILDING CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HUMAN NECESSITIES INSULATION OR OTHER PROTECTION OF BUILDINGS JOINTS OR FITTINGS FOR PIPES LIFE-SAVING LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES ROOFS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WALLS, e.g. PARTITIONS WEAPONS
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Beschreibung
Zusammenfassung:	A ventilating mounting for a chimney flue comprises a slotted mounting plate 1, a mechanical heat sensitive release mechanism and a top closure plate 4 or 7. In the first embodiment the top closure plate is mounted by resilient brackets 2 arranged to hold the closure plate 4 above ventilation slots in the mounting plate 1 and in the second embodiment the closure plate 7 has slots and is rotatably mounted adjacent to the mounting plate 1. In both cases the release mechanism is actuated by excessive heat causing fusible links 5 or 5 and 9 to melt. In the first embodiment a restraining wire loop 3 disengages and the brackets 2 release the closure plate which falls onto, and closes, the ventilation slots. In the second embodiment springs held in tension are released which rotate the closure plate and cover the slots. The blocking of the ventilation slots has no effect on the flow of gases through the chimney flue.