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|"High endeavours are an inward light|
That makes the path before him always bright."
The senior partner in
Hayward Brothers was just sixty years old when he patented his most
important invention. On the last day of July 1871,
Patent No. 2014 was
granted for "Improvements in Pavement Lighting" designed not merely to
allow light to pass through, but also to direct the light in an
inclined direction into the room to be lighted. For this purpose, the
specification stated that the frame was to be glazed "with glass moulded
so as to be of a prism-like form on the under side, resembling to some
extent in this respect the glasses which are often inserted into ships'
decks to give light below. The form and arrangement of the prism is,
however, entirely altered in order that the light may be thrown forward
in one direction. One of the sides of the prism is upright, or nearly
so, and the other is inclined to it at such an angle that the light
passing through the upper surface may strike this inclined side and be
reflected completely or nearly so, within the prism and issue from
the upright, or nearly upright side, in the direction required. The
sides of the prism may be flat or curved in a horizontal plane."
The patentee then went on to state that he
usually formed the glasses hexagonal on the upper surface, and fitted
them into an iron