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236,817 · Hyatt · "Illuminating-Grating or Perforated Plate of Metal and other Materials, and Constructions made therefrom" · Page 3 Home  > Prism Glass  > Patent Index  > Page 3

236,817: 3 of 6

fire-proof incasement which completely incloses the metal, substantially as and for the purposes herein set forth, and illustrated by my drawings.     2. Illuminating-roofs and walking-surfaces made by the combination of any number of fireproofed illuminating gratings or plates, as aforesaid, substantially as and for the purposes herein set forth, and illustrated by my drawings.     3. Illuminating-roofs and walking-surfaces made by the combination of any number of fireproofed gratings or plates, as aforesaid, so combined as to produce a practically continuous fire-proof roof and walking-surface, substantially as and for the purposes herein described, and illustrated by my drawings.     4. Illuminating-roofs and walking-surfaces formed by the combination of any number of illuminating-gratings or perforated metal plates overlaid by or incased with ornamental fireproofing materials, substantially as and for the purposes herein set forth, and illustrated by my drawings.

5. Illuminating-roofs and walking-surfaces formed by the combination of any number of illuminating-gratings or perforated metal plates overlaid by or incased with fireproofing materials in which the glasses are inclosed in jackets or mounts, substantially as and for the purposes herein set forth, and illustrated by my drawings.     6. Applying fireproofing material in molded and hardened form as an overlayer or as an incasement to illuminating-gratings or perforated metal plates, substantially as and for the purposes herein set forth and illustrated by my drawings.     7. Applying the glasses of illuminating gratings or plates, when overlaid by or incased in fireproofing material, after the same has become set and hard, substantially as and for the purposes herein set forth, and illustrated by my drawings. THADDEUS HYATT. Witnesses:     GEO. M. LOCKWOOD,     L. BACON.