 Up: Patent Index |
D28,003 · Wright · "Design for a Prism-Plate" · Page 1 Home > Prism Glass > Patent Index > Page 1 |
 D28,003: 1 of 2 |
|
Up: Patent Index |
D28,003 · Wright · "Design for a Prism-Plate" · Page 1 Home > Prism Glass > Patent Index > Page 1 |
D28,003: 1 of 2 |
|
Patents: 437 of 530 |
UNITED STATES PATENT OFFICE
FRANK L. WRIGHT, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE. DESIGN FOR A PRISM-PLATE. |
Frank L. Wright 27 of 41 Luxfer: 70 of 88 |
|
SPECIFICATION forming part of Design No. 28,003, dated December 7, 1897. Application filed October 23, 1897. Serial No. 656,227. 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-Plates, of which the following is a specification. My invention relates to designs for prism-plates. Figure 1 is a plan view of a prism-plate embodying my design. Fig. 2 is a cross-section therethrough. A A are surface areas comparatively uniform and formed by the lines of separation B B on the surface of the prism-plate. C C are prisms on the opposite side. D D are lines which constitute designs along a band of lower areas, E E lines which form designs along an upper band of areas, and F F lines which constitute designs upon intermediate areas. The designs on intermediate areas are arranged so as to form a distinct and separate pattern or design on each |
such area, such patterns or designs being uniform. The result, as indicated,
is a distinctly-ornamented bar or band across the upper part and another bar
or band across the lower part, with a field ornamented by uniform ornaments,
giving a sort of mosaic effect. The essential feature of my invention is found in a prism-plate comprising an extended body with prisms on one side, lines of separation which divide the other surface into a series of areas, and a band of such areas distinctly ornamented across the top and another across the bottom, with a field of surface areas uniformly ornamented and distinguished from the band. I claim-- A design for a prism-plate, substantially as shown and described.
Witnesses: |