Home Index Site Map Up: Patent Index Navigation
Up: Patent Index
D27,978 · Wright · "Design for a Prism-Light" · Page 1
Home  > Prism Glass  > Patent Index  > Page 1
First: D27,978 · Wright · "Design for a Prism-Light" · Page 1 Last: D27,978 · Wright · "Design for a Prism-Light" · Drawing Prev: D27,978 · Wright · "Design for a Prism-Light" · Drawing Next: D27,978 · Wright · "Design for a Prism-Light" · Drawing Navigation
D27,978: 1 of 2

First: 232 · Wyndus · "Glasses and Lamps for Ships, Mines, &c" · Page 1 Last: 397,371 · Deutsche Glasbau-Gesellschaft · "Improvements in Moulds for use in the Construction of Floor Slabs, Wall Panels, Pavement Lights, Windows and the like of Glass Framed in Ferroconcrete" · Drawing Prev: D27,977 · Wright · "Design for a Prism-Light" · Page 1 Next: D27,979 · Wright · "Design for a Prism-Light" · Page 1 Navigation
Patents: 412 of 511
UNITED STATES PATENT OFFICE
FRANK L. WRIGHT, OF CHICAGO, ILLINOIS, ASSIGNOR TO
THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE.

DESIGN FOR A PRISM-LIGHT.
First: D27,977 · Wright · "Design for a Prism-Light" · Page 1 Last: D28,020 · Wright · "Design for a Prism-Canopy" · Drawing Prev: D27,977 · Wright · "Design for a Prism-Light" · Page 1 Next: D27,979 · Wright · "Design for a Prism-Light" · Page 1 Navigation
Frank L. Wright
2 of 41

First: D26,829 · Basquin · "Design for a Prismatic Window-Light" · Page 1 Last: D30,472 · Soper · "Design for a Vault-Light" · Drawing Prev: D27,977 · Wright · "Design for a Prism-Light" · Page 1 Next: D27,979 · Wright · "Design for a Prism-Light" · Page 1 Navigation
Luxfer: 45 of 88

Specification forming part of Design No. 27,978, dated December 7, 1897.
Application filed October 4, 1897. Serial No. 654,089. Term of patent 14 years.
To all whom it may concern:
    Be it known that I, FRANK L. WRIGHT, 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 Prism-Lights, of which the following is a specification.
    My invention relates to designs for prism-lights having prisms on one side and ornamental designs on the other.
    It is illustrated in the accompanying drawings, wherein--
    Figure 1 is a plan view of the ornamental side of the prism-light. Fig. 2 is a cross-section therethrough on line 2 2.
    A is the body of a prism-light.
    B B are distinct designs, each formed of the series of elements C, grouped together, so as to form, as it were, a compound design.
    The several elements may be connected together, as shown, and the separate compound designs may be connected.
    The designs are produced by a series of lines worked into the surface of the prism-light, the raised line being shown in cross-section.
    The essential feature of my design as applied to the back of a prism-light is the form of a series of groups, each group composed of a series of lesser designs or figures, the whole appearing, when seen, both as a series of groups and as series of lesser designs within the groups.
    I claim--
    A design for a prism-light substantially as shown and described.
FRANK L. WRIGHT.
Witnesses:
    DONALD M. CARTER,
    HOMER L. KRAFT