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D22,390 · Jacobs · "Design for a Lens for Vault-Lights" · Page 1
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Patents: 263 of 511
UNITED STATES PATENT OFFICE
JACOB JACOBS, OF NEW YORK, N. Y.

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Jacob Jacobs
35 of 57
DESIGN FOR A LENS FOR VAULT-LIGHTS.
SPECIFICATION forming part of Design No. 22,390, dated March 2, 1893.
Application filed March 31, 1893. Serial No. 468,573. Term of patent 14 years.
To all whom it may concern:
    Be it known that I, JACOB JACOBS, a citizen of the United States, residing at New York city, in the county of New York, and in the State of New York, have invented a certain New and useful Design for a Lens for Vault-Lights, &c.; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which--
    Figure 1 shows a plan view of a lens or glass formed in accordance with my design, and Fig. 2, a view of a cross-section of the same on line x, x, of Fig 1.
    Letters of like name and kind refer to like parts in each of the figures.
    The object of my invention has been to provide a new, useful and original design for a glass or lens, such as is used in vault lights and illuminating tiles, and to this end my invention consists in the design substantially as hereinafter specified and shown in the drawings.
    My special purpose has been to so form the upper portion, or that part of the lens or glass, which is exposed to view, at the surface of the finished light or tile, that it will produce an ornamental and pleasing effect. With such purpose in view, I make the said portion of each lens of the form shown in the drawings, in which A designates the body or main part of the lens or glass, and A' that portion which comes flush with or just above the exposed surface of the cement or other
material, in which the lenses of vault lights or illuminating tiles are ordinarily secured. The edge of part A', is formed with a series of V-shaped notches a which are placed close together, so as to leave angular pointed projections a' between them. The bottoms of said notches are substantially straight lines, which, extending downward and outward to the outer edge of part A', are situated in radial planes. When a lens or glass, so formed, is embedded in the cement or other holding material in a vault light or illuminating tile, its exposed upper or outer part A' shows around its edge a series of oppositely inclined facets, while the edge of its upper or outer surface is formed on a wave line. The result is a very pleasing appearance in each lens, and, where several of them are, in the ordinary manner, brought close together in one frame, a neat, ornamental and attractive vault light or illuminating tile is provided.
    Having thus described my invention, what I claim is--
    The design for a lens or glass for vault lights and illuminating tiles, substantially as herein shown and described.
    In testimony that I claim the foregoing I have hereunto set my hand this 20th day of February, A. D. 1893.
JACOB JACOBS.
Witnesses:
    GEO. W. TICE,
    E. J. JACOBS.