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Ventilating Apparatus.
Patent for a new and improved ventilator. This design consists in "a fan casing, constructed and arranged . . . of the fan arranged therein, the gearing placed above the fan, the air-ducts leading to the fan-chamber, the endless weighted chain or cord, and drums and pulleys . . . [and] an open bottom secured to a ceiling and communicating with air-ducts passing between the floor and ceiling of a building" (lines 80-90).
Date:
September 21, 1886
Creator:
Garfield, John Morris
System:
The Portal to Texas History