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12,595 · Hyatt · "Illuminating Vault Covers" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

12,595: 2 of 3

mode or modes thus specified, but to cover all merely formal variations.     I am aware that before my invention glass has been secured in lead sashes by inserting the glass in a rabbet and then lapping or bending the lead over the surface of the glass. And I am also aware that jewels have secured gems or precious stones in a case of one kind of metal and then secured this case in a socket made in a ring or other article to be ornamented by soldering or brazing such metal case in the said socket of the ring or other article and sometimes without this) and then lapping or bending the metal of the socket over the edge of the case and gem but none of these modes hold the glass by forcing the glass with its surrounding ring made of soft yielding metal, or equivalent therefor, within the cavity of a hard metal case to hold it therein solely by the pressure due to the force with which it is driven in, that the entire upper surface of

the glass may be exposed to the light and to insure perfect contact of the joints to prevent leaks. And therefore I do not wish to be understood as making claim broadly to the securing of glass directly within a soft metal sash, nor to the securing of glass within a metal socket, as these have been known when applied as herein specified.     What I claim as my invention, and desire to secure by Letters Patent, is--     The method of securing glasses in the apertures of metal plates or other surfaces, by surrounding the glass with a hoop or belt of lead, gutta-percha, or other equivalent yielding substance, and forcing the glass so surrounded into the aperture or recess, substantially as, and for the purpose specified. THADDEUS HYATT. Witnesses:     HOMER BROWN,     W. W. HYATT.