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D22,391 · Jacobs · "Design for a Lens for Vault-Lights" · Page 1
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Patents: 264 of 511
UNITED STATES PATENT OFFICE
JACOB JACOBS, OF NEW YORK, N. Y.

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Jacob Jacobs
36 of 57
DESIGN FOR A LENS FOR VAULT-LIGHTS.
SPECIFICATION forming part of Design No. 22,391, dated March 2, 1893.
Application filed March 31, 1893. Serial No. 468,574. 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 lens or glass for vault lights and illuminating tiles, and, to this end my invention consists, in the design substantially as hereinafter specified and shown in the drawings.
    The part of the lens or glass for which my design is especially intended is that one, the outer side of which will be exposed to view in the finished vault light or illuminating tile.
    In the drawings, A designates the body of the lens or glass, and A' the portion, which is intended to appear to the view in the finished light or tile. In general outline such part is rectangular. Along its four sides are series of V-shaped notches a, which are set close together, so as to leave between them V-shaped outwardly projecting portions a'. The bottom of these notches a, are substantially straight lines extending downward and outward and situated in planes at right angles in the respective sides of the top.
The outline of the extreme outer portion of part A' shows the corners of the rectangle cut off, at right angles to diagonal lines to such rectangle. Beyond such points said corners are beveled in opposite directions downward and outward from the respective diagonals; but the specified formation of the corners of the lens, does not form any essential feature of my design. It can be varied, as desired, without departure from my invention. The notching of the outer portion or top of the lens, in the manner described, produces, along the four sides of such part, a series of oppositely inclined facets. There is, at a short distance outside of the part A', made in accordance with my design, a raised rib running around the lens body parallel to the sides thereof. When a lens, made in accordance with my design, as hereinbefore described and shown in the drawings, having the series of oppositely inclined facets along its four sides, and the edge of its top surface made on a wave line, is embedded in the cement, or other holding material ordinarily used in an illuminating tile, or vault light, so that the said portion A' shows above said holding material, the finished vault light or illuminating tile will, because of the form of part A, be given a very pleasing and attractive appearance.
    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.