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145,209 · Hyatt · "Improvement in Illuminating Ventilating-Steps" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

145,209: 2 of 4

stream of water from a hose without in any manner endangering the safety of articles contained within the space beneath the stoop.     Having thus fully set forth the nature and merits of my invention, what I claim as new is--     1. In an illuminating-stoop, a ventilating chamber formed by extending the rear edge of one plate beneath, and in rear of the plate which forms the next highest step, substantially as and for the purpose specified.     2. In an illuminating-stoop, a ventilating-chamber formed between the rear edge of one plate and the overlapping front edge of a higher plate, and partly or wholly inclosed at

its rear side by means of a glazed wall or partition, substantially as and for the purpose shown.     3. The overlapping illuminating-plates A and A', open risers B, and glazed frame E, when constructed and combined in the manner and for the purpose substantially as set forth.     In testimony that I claim the foregoing I have hereunto set my hand this 26th day of July, 1873. THADDEUS HYATT. Witnesses:     AMBROSE MONELL,     CHARLES SPYR.