Date: March 24, 1885
Creator: Atkin, Samuel T.
Description: Patent for a new and improved ventilating chimney. This design consists in "the combination, with the smoke-flue, of the ventilating-flue, the thimble provided with outwardly-projecting lugs and inwardly-projecting apertured lugs, the plate provided with a central aperture and with a flange having notches, and the screws passed through the plate into the apertured lugs" (lines 16-23).
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