USD28004S - Design for a prism-plate - Google Patents

Description

EX 09075 OR 0 28,004

DESIGN.

F. L. WRIGHT. PRISM PLATE.

No. 28,004. Patented Dec. 7, 1897.

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.

SPECIFICATION forming part of Design No. 28,004, dated December 7, 1897.

Application filed October 23, 1897. Serial No. 656,228. Term of patent 14 years.

To 60% 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 designs for prisn1- plates.

Figure l is a plan View of a prism-plate embodying my design. Fig. 2 is a cross-section therethrough on line 2 2.

A A are surface areas comparatively uniform and formed by the lines of separation 13 .3 on the surface of the prism-plate. C C are prisms on the opposite side.

D D are lines which constitute designs along a band of lower areas; E E, lines which form designs along an upper band of areas. The areas 1 F are shown as plain.

The essential features of my design are found in a prism-plate comprising an extended body with prisms on one side and lines of separation on the other, which divide it into a series of surface areas, and an ornamented band of surfaces across the upper part and an ornamented band of surfaces across the lower part.

I claim- A design for a prism-plate, substantially as 30 shown and described.

FRANK L. \V RIGHT.

Witnesses:

()LIN II. BAs UIN, FRANCIS W. PARKER.

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