Chimney damper plate with control by removable handle - has frame supporting plate and axle spring loaded at one end

摘要

The damper has a rectangular frame (9) fitted with an internal flange (7). The frame carries the damper plate (5) which is supported on the shaft (4) resting in the tube (6). The tube is welded to the flange at the inner end (8). The shaft may be rotated by a removeable handle (1) with a square stub (2). The free end of the shaft has a coil spring (11) and an outer tube and cover (10). The travel of the damper is limited by the notch (15).