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D30,446 · Jacobs · "Design for a Lens or Glass for Gratings" · Page 1
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Patents: 484 of 511
UNITED STATES PATENT OFFICE
SIEGFRIED MARCUS, PHILADELPHIA, PENNSYLVANIA.

DESIGN FOR A GLASS LIGHT.
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Siegfried Marcus
1 of 1

SPECIFICATION forming part of Design No. 30,446, dated March 28, 1899.
Application filed February 27, 1899. Serial No. 707,116. Term of patent 14 years.
To all whom it may concern:
    Be it known that I, SIEGFRIED MARCUS, of the city and county of Philadelphia, State of Pennsylvania, have invented and produced a new and useful Design for Glass Lights, of which the following is a specification.
    My design for glass lights intended for illuminating panes or gratings is shown in the accompanying drawings, in which—
    Figure 1 is a perspective view of a glass light embodying my design, and Fig. 2 is a transverse sectional view of the same.
    The light is composed of a series of parallel parts A, each of which is triangular in cross-section and provided with one convex side a and two concave sides b c, and these parts A are united to one another at the adjacent angles of the concave side c with the
intermediate angle d between the concave side b and the convex side a projecting outwardly, thus forming a plate having one side provided with small rounded corrugations and the other side with a series of parallel projecting concavo-convex ribs.
    Having thus described my design, I claim as new and desire to secure by Letters Patent—
    The design for a glass light substantially as herein described and shown.
    In testimony of which invention I have hereunto set my hand.
SIEGFRIED MARCUS.
Witnesses:
    R. M. HUNTER,
    R. M. KELLY.