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586,251 · Soper · "Device for Lighting Basements" · Page 2 Home > Prism Glass > Patent Index > Page 2 |
586,251: 2 of 4 |
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sides, in combination with transparent prism-deflectors placed at the
sides and adapted to receive the light from such side-throwing prism-tiles
and to direct it forward into the room to be lighted. 3. A device for lighting basements and the like comprising a series of prism-tiles arranged in a pavement-like body, substantially at right angles to the building, said tiles arranged in groups, one group adapted to throw the light into the room to be illuminated, the |
other groups adapted to throw the light on opposite sides, in combination
with transparent prism-plates placed at the sides and adapted to receive
light from such side-throwing prism-tiles and to direct it forward into
the room to be lighted.
FRANCIS M. PARKER, BERTHA C. SIMS. |