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D27,340 · Pennycuick · "Design for a Prism-Light" · Page 1 Home  > Prism Glass  > Patent Index  > Page 1

D27,340: 1 of 2

Patents: 327 of 530	UNITED STATES PATENT OFFICE. JAMES G. PENNYCUICK, OF TORONTO, CANADA. DESIGN FOR A PRISM-LIGHT.	James G. Pennycuick 9 of 12
SPECIFICATION forming part of Design No. 27,340, dated July 13, 1897. Application filed June 15, 1897. Serial No. 640,927. Term of patent 14 years.

To all whom it may concern:     Be it known that I, JAMES G. PENNYCUICK, citizen of the Dominion of Canada, residing at Toronto, in the county of York and Province of Ontario, Canada, have invented and produced a certain new and useful Design for Prism-Lights, of which the following is a description.     My invention related to a design for prism-lights.     It is illustrated in the accompanying drawing, wherein--     Figure 1 shows a perspective view of a prism-light containing my design. Fig. 2 is a cross-section.     Like parts are indicated by the same letter in all the figures.     A is the body of the prism having the plain

side B and the prism side C, with the prisms D D arranged thereon substantially parallel to the hypotenuse of the triangle. The prisms are shown as of certain sizes, angles, and numbers; but the essential feature of my invention, however, is a triangular prism-light having a practically smooth surface on one side with a prism-surface on the other side, said prisms being substantially parallel to the hypotenuse of the triangle.     I claim--     The design for a prism-light substantially as shown and described.     In testimony whereof I affix my signature, in the presence of two witnesses, this 22d day of April, 1896. JAMES G. PENNYCUICK. Witnesses:     LOUIE HARDING,     F. N. BARRETT.