Improvement in Combined Ventilators and Chimneys (open access)

Improvement in Combined Ventilators and Chimneys

Patent for improvement in Combined Ventilators and Chimneys. This object is to be used with the brick chimney on top of the roof to provide air circulation. It consists of an iron-lined inner flue secured within an outer casing with suitable bottom and top perforation for establishing air current around the flue.
Date: July 14, 1874
Creator: Hickley, Walter R & Dibrell, Charles J
System: The Portal to Texas History