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492,865 · Haustein · "Illuminating-Tile" · Page 2 Home > Prism Glass > Patent Index > Page 2 |
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Up: Patent Index |
492,865 · Haustein · "Illuminating-Tile" · Page 2 Home > Prism Glass > Patent Index > Page 2 |
492,865: 2 of 3 |
|
lenses are filled in with Portland cement concrete, or any other material
in plastic state. Placing the skeleton in this manner the rubber will
not absorb the moisture from the Portland cement concrete and will give
to the tiles a smoother surface. Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-- In illuminating tiles the combination of the lenses with bars arranged in pairs and adapted to receive the said lenses at intervals, an |
exterior frame to which the said bars are attached and screw-threaded rods
E and nuts G for clamping the said bars on the said lenses substantially
as set forth. In testimony whereof I have hereunto affixed my signature in presence of two witnesses.
WM. L. MURPHEY, H. C. BRADLEY. |