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2,931 · Green · "Glass Lights for Street Vaults, Ships, &c." · Page 1
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Patents: 15 of 511

A.D. 1856 . . . . . . . Nº2931.
Glass Lights for Street Vaults, Ships, &c.
 

LETTERS PATENT to Jacob Green, of the City and County of Philadelphia, and State of Pennsylvania, United States of America, for the Invention "IMPROVEMENTS IN THE MODE OF MANUFACTURING GLASS LIGHTS FOR STREET VAULTS, SHIPS, BUILDINGS AND FRICTION BOXES, AND THE APPARATUS FOR LADLING OR CONVEYING THE MOLTEN GLASS FROM ONE FURNACE TO ANOTHER."

Sealed the 9th June 1857, and dated the 11th December 1856.



PROVISIONAL SPECIFICATION left by the said Jacob Green at the Office of the Commissioners of Patents, with his Petition, on the 11th December 1856.

    I, JACOB GREEN, of the City and County of Philadelphia, and State of Pennsylvania, United States of America, do hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE MODE OF MANUFACTURING GLASS LIGHTS FOR STREET VAULTS, SHIPS, BUILDINGS AND FRICTION BOXES, AND THE APPARATUS FOR LADLING OR CONVEYING THE MOLTEN GLASS FROM ONE FURNACE TO ANOTHER," to be as follows:--

    The Invention consists, firstly, in casting molten glass into iron or other metal frames, the frames being made with a groove or projections to prevent the glass leaving or shrinking from the frame after it has become solid and annealed.