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D27,992 · Wright · "Design for a Prism-Plate" · Page 1 Home > Prism Glass > Patent Index > Page 1 |
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Up: Patent Index |
D27,992 · Wright · "Design for a Prism-Plate" · Page 1 Home > Prism Glass > Patent Index > Page 1 |
D27,992: 1 of 2 |
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Patents: 426 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 16 of 41 Luxfer: 59 of 88 |
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SPECIFICATION forming part of Design No. 27,992, dated December 7, 1897. Application filed October 7, 1897. Serial No. 654,467. Term of patent 14 years. | ||
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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 a designs for prism-plates. Figure 1 is a plan view of a prism-plate. Fig. 2 is a cross-section therethrough. A A are surface areas. B B are lines of separation across the face of the prism-plate. On one side of the prism-plate is a series of prisms B'. On the other side is a series of ornamental figures C C D D, many of which figures are carried over the lines of separation B B. |
The essential features of my design are found
in a substantially flat body having prisms on one side, lines of separation
on the other, which divide the prism-plate into separate areas or surfaces,
and ornamental figures which are carried from one separate area to the other
across the lines of separation, thus producing the appearance of a complete
design only when the lines on adjacent areas are considered together. I claim-- A design for a prism-plate, substantially as shown and described.
Witnesses: |