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631,220 · Manning · "Illuminating Window-Glass" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

631,220: 2 of 3

arranged one in contact with another in permanent relation, and transparent sheets of soluble glass covering the light-receiving and light-discharging surfaces of the panel and united with the edges of said blocks, substantially as described.     4. In an illuminating structure, a panel formed of a series of transparent blocks arranged one in contact with another in permanent relation, and a transparent sheet of

glass applied in a softened state to the surface of the panel and united with the edges of said blocks, substantially as described.     In testimony whereof I affix my signature in presence of two witnesses. CHARLES E. MANNING. Witnesses:     E. A. COLVIN,     HENRY H. SHERWOOD.