USD27345S - Design for a prism x p plate - Google Patents

Description

D9075 OF; D 27,345

DESIGN.

J. M. EWEN.

PRISM PLATE.

No. 27,345. Patented July 13,1897.

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UNITED STATES PATENT OFFICE.

JOHN M. INVEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE LUXFER PRISM PATENTS COMPANY, O1 SAME PLACE.

DESIGN FOR A PRISM-PLATE.

SPECIFICATION forming part of Design No. 27,345, dated July 13, 1897.

Application filed June 15, 1897. Serial No, 640,933. Term of patent 14 years.

To all whom it may concern.-

Be it known that I, JOHN M. EWEN, a citizen of the United States, residing at Chicago, in the county of Cook and. State of Illinois, have invented and produced a new and original Ornamental Design for Prism-Plates, of which the following is a specification.

My invention relates to a new design for prism-plates.

It is illustrated in the accompanying drawing, wherein is shown a prism-plate consisting of a series of diamond-shaped prismlights A A and sections of diamondshaped prism-lights I B and C (1. Each of these prism-lights is provided with a prism-surface consisting of the prisms D. E E are opaque frame-pieces which run diagonally between the diamond-shaped lights.

I have shown certain angles for the diamondsand for the prisms and certain numbers of prism-lights; but the essential features of my invention are found in a plate composed of a series of substantially diamond-shaped prism-lights and portions of diamond-shaped prism-lights set together so as to form a plate and all having prisms thereon substantially parallel to the shorter axes of the prism-lights.

I claim- The design for a prismplate substantially as shown and described.

JOHN M. E\V EN.

Witnesses:

DONALD M. CARTER, HOMER L. KRAFT.

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