Patent for a new and improved combined ventilator and chimney. This design consists in "[a] combined ventilator and chimney . . . composed of a central flue surrounded by an annular air-chamber, in the top and bottom of which are openings, flange, and case, provided with a water-shed or apron, in combination with [a] section consisting of a flue or chimney, having its lower end inserted in the flue of the ventilator and extending therefrom above the roof, and covered with a cap or caps, and its juncture with the ventilator protected by a downward-projecting hood" (lines 38-49).