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317,944 · Hyatt · "Illuminating Combination-Tile" · Page 3 Home  > Prism Glass  > Patent Index  > Page 3

317,944: 3 of 5

is lost, but where the lines are waved, as in Fig. 8, this opportunity is taken advantage of and turned to account, as fully set forth herein and explained.     What I claim as my invention is--     1. A fractional grating wherein the light-holes are disposed on the honey-comb plan, in groups of triangles, in combination with junction sides formed on a waved or serpentine outline in harmony with the geometrical disposition of the holes, substantially as and for the purposes herein set forth and illustrated.     2. In illuminating-tile constructions, fractional gratings having their light-holes arranged in lines parallel with the dividing-lines of the fractions, and having their junction edges formed in a waved or sinuous outline, substantially as herein shown and described.     3. In combination-tiles made of fractional gratings wherein the light-holes are grouped in obtuse angled triangles, and so disposed as to run crosswise to the tile on the fractions being united, forming the junction sides of the

fractions with a sinuous or waved outline, substantially corresponding to the contour of the individual light-holes along the junction edges of the gratings, substantially as herein, shown and described.     4. Illuminating constructions or surfaces made of combination-tiles formed of fractional gratings wherein the light-holes are grouped in triangles, and in which they are also so disposed as to run crosswise to the tile on the fractions being united, when the junction sides of such fractions are made to conform to the honey-comb arrangement of the light-holes therein in a waved or serpentine outline, substantially as and for the purposes herein set forth and illustrated.     In testimony whereof I affix my signature in presence of two witnesses. THADDEUS HYATT. Witnesses:     LOUIS BEYER,     JOHN C. PARKER.