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D27,841: 1 of 2

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Patents: 386 of 511
UNITED STATES PATENT OFFICE.
FRANK C. SOPER, OF CHICAGO, ILLINOIS, ASSIGNOR TO
THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE.

DESIGN FOR A VAULT-LIGHT.
First: D25,865 · Soper · "Design for a Prism-Tile" · Page 1 Last: D30,472 · Soper · "Design for a Vault-Light" · Drawing Prev: 586,252 · Soper · "Basement Light" · Page 1 Next: 595,270 · Soper · "Ornamental Prism-Light" · Page 1 Navigation
Frank C. Soper
8 of 16

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Luxfer: 34 of 88

SPECIFICATION forming part of Design No. 27,841, dated November 9, 1897.
Application filed September 27, 1897. Serial No. 653,261. Term of patent 14 years.
To all whom it may concern:
    Be it known that I, FRANK C. SOPER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and original Design for Ornamental Vault-Lights, of which the following is a specification.
    My invention relates to a new and original design for vault-lights, and is illustrated in the accompanying drawings, wherein--
    Figure 1 is a front view of vault-light embodying my invention. Fig. 2 is an end view of the same.
    As illustrated in the drawings, the vault-light consists of the body portion A, provided with the downwardly-projecting part or prism B. This prism may be provided at its ends with the projecting parts B'.
The prism B is provided with the converging surfaces B² B³, for forward surface B² being a convex curved surface, as shown.
    The essential feature of my design is a vault-light having a projecting part or prism provided with two converging surfaces, the forward or front surface being a convex curved surface.
    I claim--
    The design for a vault-light as herein shown and described.
FRANK C. SOPER.
   Witnesses:
       DONALD M. CARTER,
       HOMER L. KRAFT.