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378,558 · Sharts · "Illuminating-Tile" · Page 2
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My cross-bar or bearing-beam can lie made
wholly of cast-iron, or it may be made by using a straight bar of
wrought-iron, with the top bearing-surfaces of malleable iron or other
suitable metal fastened to it at proper intervals along its upper edge,
(see letters D and d, Fig. 3,) in which case the beveled edges
may be dispensed with, if desired.
What I claim as new, and desire to secure by Letters Patent, is--
1. The combination, with illuminating-tiles having half light-openings along their meeting edges, of the supporting-bars provided at regular intervals on their upper sides with the broad bearings, as at B, having re-enforcing
flanges d d, and, the upper edges of the bar between these
bearings, which are adapted to come beneath the light-openings,
tapered so as to permit the entrance of light, substantially
2. As an improved article of manufacture, a supporting-bar for the purpose described having its upper edge tapered to nearly a feather edge, and provided at regular intervals with broad bearings re-enforced by flanges beneath them, substantially as specified.
J. A. J. NEAFIE,
RO. L. CLUTTER.