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568,789 · Pennycuick · "Vault-Light" · Page 2 Home > Prism Glass > Patent Index > Page 2 |
 568,789: 2 of 3 |
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Up: Patent Index |
568,789 · Pennycuick · "Vault-Light" · Page 2 Home > Prism Glass > Patent Index > Page 2 |
568,789: 2 of 3 |
|
under surface, arranged one behind the other, the reflecting-surface
of one prism being at an angle of substantially forty-five degrees to
the horizontal, and the reflecting-surface of the other prism being
at an angle of substantially fifty degrees to the horizontal, the said
prisms reflecting the rays of light in the same general direction, and
each having a non-reflecting surface in front of the reflecting-surface,
the said tile having its upper surface set at an angle to the upper line
of the said prisms, substantially as described. 3. A glass tile, having two prisms on its under surface, arranged one behind the other, the reflecting-surface of one prism being at an angle of substantially forty-live degrees to |
the horizontal, and the reflecting-surface of
the other Prism being at an angle of substantially fifty degrees to the horizontal, the said
prisms reflecting the rays of light in the same
general direction, and each having a non-reflecting surface in front of the reflecting-surface, the said tile having a rabbet formed
thereon above the upper line of the prisms,
whereby the whole volume of light may be
transmitted, substantially as described. Toronto, October 29, 1895.
F. W. BARRETT, D. P. KENNEDY. |