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D28,011 · Wright · "Design for a Prism-Plate" · Page 1 Home  > Prism Glass  > Patent Index  > Page 1

D28,011: 1 of 2

Patents: 445 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 35 of 41 Luxfer: 78 of 88
SPECIFICATION forming part of Design No. 28,011, dated December 7, 1897. Application filed October 23, 1897. Serial No. 656,236. 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 description.     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 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.     D 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 prism-plate 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. WRIGHT. Witnesses:     C. A. LONGFELLOW,     OLIN H. BASQUIN.