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Patents: 136 of 530
A.D. 1882, 5th JULY. Nº3170.
Pavement and Ship Deck Lights.
 

LETTERS PATENT to Thomas George Webb of the Firm of Thomas & Sons of Manchester in the County of Lancaster, Flint Glass Manufacturers, for an Invention of "IMPROVEMENTS IN PAVEMENT AND SHIP-DECK LIGHTS."


PROVISIONAL SPECIFICATION left by the said Thomas George Webb at the Office of the Commissioners of Patents on the 5th July 1882.

    THOMAS GEORGE WEBB of the firm of Thomas Webb & Sons of Manchester in the County of Lancaster, Flint Glass Manufacturers. "IMPROVEMENTS IN PAVEMENT AND SHIP-DECK LIGHTS."

    This Invention relates to improvements in the glass blocks employed for glazing the cast iron or other framework of pavement and ship-deck lights. Instead of constructing these with flat reflecting or angular surfaces and approaching the form of a prism on the underside as heretofore-- I construct the underside in the form of a half or a smaller segment of a plano-convex lens-- the plane surface being uppermost and towards the light whilst the convex surface is downwards with the sectional surface which may be flat or curved, turned towards the apartment or place requiring to be lighted. The convex surface is by preference cast with and forms part of the rectangular or other form of plate with which the usual framework is glazed. In this manner the rays of light entering this improved block and striking the convex lens surface are thus converged and reflected forward through the sectional surface into the apartment ship's hold or other place to be lighted.

SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the said Thomas George Webb in the Great Seal Patent Office on the 5th January 1883.

    THOMAS GEORGE WEBB of the firm of Thomas Webb & Sons of Manchester in the County of Lancaster, Flint Glass Manufacturers. "IMPROVEMENTS IN PAVEMENT AND SHIP-DECK LIGHTS."

    This Invention relates to improvements in the glass blocks employed for glazing the cast iron or other framework of pavement and ship-deck lights.