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D27,335: 1 of 2

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Patents: 322 of 511
UNITED STATES PATENT OFFICE
JOHN M. EWEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO
THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE.

DESIGN FOR A PRISM-LIGHT.
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John M. Ewen
5 of 21

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Luxfer: 18 of 88

SPECIFICATION forming part of Design No. 27,335, dated July 13, 1897.
Application filed June 15, 1897. Serial No. 640,932. Term of patent 14 years.
To all whom it may concern:
    Be it known that I, JOHN M. EWEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented and produced a new and original Ornamental Design for Prism-Lights, of which the following is a specification.
    My invention relates to a new design for prism-lights and is illustrated in the accompanying drawings, wherein--
    Figure 1 is a perspective view, and Fig. 2 a section through a prism-light containing my design.
    Like parts are indicated by the same letter in each figure.
    A is the elliptical or oval body; B B, the prisms thereon.
    I have shown a certain thickness of the prism-light, and certain inclination of the angles of the prisms, and proportions of the diameters of the ellipse; but the essential features of my invention are found in a prism-light having a body of a substantially elliptical or oval shape with prisms thereon substantiality parallel with the long axis of the ellipse.
    I claim--
    The design for a prism-light substantially as shown and described.
JOHN M. EWEN.
Witnesses:
    DONALD M. CARTER,
    HOMER L. KRAFT