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303,359 · Belcher · "Mosaic of Glass and Lead Glazing" · Page 3 Home  > Prism Glass  > Patent Index  > Page 3

303,359: 3 of 6

By this construction certain peculiar effects of illumination are produced when employed in windows, or as roundels for windows, or when employed in a larger and varied form, as in lamp shades or globes, the integrality of the frame-work allowing of adequate strength to such frame-work without requiring such a large proportion of opaque surface as has been heretofore necessary when the frames of said shades or globes were of metallic portions soldered together to form the frame-work, as will be understood.     The hollow or concaved form of mosaic with integral frame-work may be provided with strengthening-ribs and with projecting jewels, as in the case of the flat mosaics before described.     As an article adapted to be inserted in windows, the roundel displayed in Figs. 1 and 2 possesses properties which make it peculiarly effective for purposes of illumination. The projecting jewels a' concentrate the light and throw it into the room with peculiar brilliancy, which the cast frame-work, being opaque, and allowing of a much wider surface than can be obtained by the ordinary processes of lead-glazing, brings the colors of the projecting jewels into strong prominence and produces effects which are new in window-ornamentation.     I do not wish to be understood as donating or abandoning to the pubic anything patentable that has been here for the first time disclosed to the public, and such devices that are employed in the operations of manufacture and are patentably new, will probably form the subject-matter of subsequent applications, and are hereby disclaimed.     Having thus described my invention, what I claim as new is--     1. The process of forming mosaics-- to wit, of arranging mineral portions in separated relation to one another between clamping-surfaces and filling the interstices or passages between said mineral portions with a solidifiable liquid material, substantially as set forth.     2. The process herein set forth of producing mosaics-- to wit, of arranging mineral portions in separated relation to one another between holding-surfaces, of bringing said mineral portions to an abnormally high degree of temperature, and filling the passages between the mineral parts with liquid metal, substantially as set forth and shown.     3. The process of manufacturing mosaics-- to wit, of arranging mineral portions on a suitable table or surface, causing said portions to adhere to a gummed sheet and causing a second sheet or surface to adhere to the opposite side

of said portions, and combining said portions by casting molten metal around them, substantially as set forth and shown.     4. The process of forming mosaics-- to wit, of securing mineral portions between sheets or plates, said portions being arranged at suitable distances apart to form passages, or arranging said sheets with the mineral portions between in suitable presses, and tilting the said parts upon their edges, to allow the metal to be poured between the sheets or plates, all substantially as herein set forth.     5. The process of forming mosaics-- to wit, of securing mineral portions between dampened and gummed sheets of asbestus, and subsequently casting molten metal around said portions to form an integral frame-work, as set forth.     6. As an improved article of manufacture, a mosaic formed of mineral parts having a metallic frame-work cast therearound, and provided with strengthening-ribs cast integral with said frame-work, substantially as set forth and shown.     7. A mosaic having the portions a secured together with a cast frame-work, said frame-work having the projecting ribs and overlapping flanges h, substantially as set forth and shown.     8. A concaved or hollow mosaic, the portions a of which are secured together by a cast-metal frame-work, substantially as set forth and shown.     9. A cast metallic frame-work provided with projecting jewels, said jewels being secured therein in the casting process, the whole forming a mosaic, as set forth and shown.     10. The process of forming glass or mineral mosaics-- to wit, of casting around the mineral portions a frame-work of expansible metal, or one that will expand in cooling, substantially as set forth.     11. A mosaic having strengthening-ribs, provided with a core wire or rod, substantially as set forth.     12. The process of forming mosaics-- to wit, of arranging the mineral parts in a separated relation to one another upon a table, surfaces, or groundwork, of transferring said parts without changing or disturbing their relative positions to one another to a press or mold and casting a frame-work around said mineral parts, substantially as set forth.     In testimony that I claim the foregoing I have hereunto set my hand this 11th day of August, 1883. HENRY F. BELCHER. Witnesses:     CHARLES H. PELL,     F. F. CAMPBELL.