USD27998S - Design for a prism-plate - Google Patents

Description

D25-106 EX DESIGN.

P. L. WRIGHT.

PRISM PLATE.

N0. 27 998. Patented Dec. 7 1897.

UNITED STATES PATENT OFFICE.

FRANK L. VVRIGI'IT, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE LUXFER PRISM PATENTS COMPANY, OF SAME PLACE.

DESIGN FOR A PRISM-PLATE.

SPECIFICATION forming part of Design No. 27,998, dated December 7, 1897. Application filed October 23,1897- Serial No. 656,226. Term of patent 14 years.

To all 10/2/0111 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 fo1loW- ing is a description.

My invention relates to designs for prisinplates.

Figure 1 is a plan view of a prism-plate embodying my design. Fig. 2 is a section therethrough.

A is the body of the prism-plate.

B B are a series of surface areas substantially uniform in appearance and produced by the lines of separation C G, which cross the surface of the body of the plate. D D are prisms on the opposite side.

Upon the surface of the prism-plate and intermediate between its center and outer edge a group of areas forming an annulus are ornamented by means of the lines E E. These lines are produced on the surface of the prismplate.

The essential features of my design are found in a prism-plate consisting of a sub stan tially flat body with a series of prisms on one side and lines of separation on the other, which divide the surface into a series of substantially uniform surface areas, and an annulus formed on the surface intermediate between the center and the outer edge by means of lines of ornamentation.

I claim- A design for a prism-plate, substan t iaily as shown and described.

FRANK L. WRIGHT.

Witnesses:

OLIN II. BASQUIN, FRANCIS W. PARKER.

Images