USD28011S - Design for a prism-plate - Google Patents
Design for a prism-plate Download PDFInfo
- Publication number
- USD28011S USD28011S US D28011 S USD28011 S US D28011S
- Authority
- US
- United States
- Prior art keywords
- prism
- design
- plate
- surface areas
- prisms
- Prior art date
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- 238000000926 separation method Methods 0.000 description 2
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Description
EX 09075 OR D 28.0
DESIGN.
F. L. WRIGHT.
PRISM PLATE. No. 28,011. Patented 1380.7, 1897.
UNrrEn STATES PATENT Orrrce,
FRANK L. \VRIGHT, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE.
DESIGN FOR A PRISM-PLATE.
SPECIFICATION forming part of Design No. 28,011, dated December '7, 1897.
Application filed October 23, 1897. Serial No. 666,236, Term of patent 14 years.
To (ti/l whom it may concern.-
Be it known that I, FRANK I). 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 description.
My invention relates to designs for prismplates.
Figure 1 is a plan view of a prism-plate embodying my design. Fig. 2 is a section therethrough with parts broken away and enlarged.
A is the body of the prism-plate; B B, a series of surface areas formed on one side thereof by the lines of separation C C. These surface areas are substantially uniform.
l) D are prisms on one side of the plate,
and E E prisms on certain of the surface areas grouped about the center, so as to form a sort of central-surface prism or decorated part.
The essential features of my design are found in a prisnnplate comprising a substantially flat extended body with surface areas on one side formed by means of lines of separation, prisms on the other side, and prisms in a body of such surface areas gathered about the center. I claim-- A design for a prism-plate, substantially as shown and described.
FRANK L. \VRIGIIT. itnosscs:
O. A. LONGFELLOW, OLIN II. BAS UIN,
Family
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