USD28013S - Design for a pris m-plate - Google Patents

Description

D9075 EX 0 28.013

DESIGN,

P. L. WRIGHT. PRISM PLATE. No. 28,013. Patented Dec. 7, 1897.

N L I N UNITED STATES PATENT OFFICE.

FRANK L. \VRIGIIT, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE.

DESIGN FOR A PRISM-PLATE.

SPECIFICATION forming part of Design No. 28,013, dated December '7, 1897.

Application filed October 23, 1897. Serial No. 656,238. Term of patent 14 years.

1'0 all whom it may oonoern:

lle it known that I, FRANK L. \VRIGHT, 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 of a prism-plate embodying my design. Fig. 2 is a section therethrough.

A is the body of the prisn1plate; B B, a series of surface areas produced on one side of the prism-plate by means of lines of separation 0 C. D D are a series of prisms on the other side.

E E are prisms on some of the surface areas, arranged in bands across the surface near the top and bottom.

The essential features of my design are found in a prism-plate comprising a substantially flat and extended body with a series of prisms on one side and on the other a series of surface areas formed bylines of separation, and prisms in such surface areas in bands across the surface near the top and bottom.

I claim-- A design for a prism-plate, substantially as shown and described.

FRANK L. \VRIGIIT.

\Vitnesses:

FRANCIS IV. PARKER, O. A. LoNGEnLLoW.

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