Improvements in or relating to Pavement Lights.
Year: 1896

page_text: Date o Application, 22nd Dec., 1896-Accepted, 20th Feb., 1897
COMPLETE SPECIFICATION.
Improvements in or relating to Pavement Lights.
JOHN ALFRED WILLMORE of 187 Union Street Borough in the County of
London Engineer do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
My invention refers to improvements in pavement lights, cellar flaps, coal plates
and the like and has for its object the preparation of the surface so that there is less
tendency for people passing over them to slip, than there is with ordinary pavement
lights whose surface is entirely of iron and glass.
I make the iron frame which carries the glass so that except its outside edge
none of the iron comes within a certain distance of the top surface, the glass is bedded
in the iron frame in suitable cement and the spaces between the glasses and also
between the outside row of glasses and the margin of the frame are filled in with
blocks or as I prefer to call them tiles of lead copper aluminium or other suitable
soft metal or alloy, which tiles may be solid or perforated with holes of any desired
pattern and with their bottom surfaces wider than the top, the tiles are bedded in
cement with which the perforations if any are also filled so as to form a surface
level with the glass, the form of the tiles causes them to be securely held in place
by the cement which may be neat Portland cement or Portland cement mixed with
fine granite chippings, asphalte or other suitable material.
Or in place of the metal tiles I use metal bars having projecting pins which may
be square, circular or any other shape desired, the bar portion is made triangular
with the apex upwards, these bars which should be of metal as described for the
tiles are laid between the glasses with the tops of the projections flush with the
glass and are bedded in the cement or other material used which is also filled in
between the projecting pins so as to form a level surface.
The metal tiles or bars may be interspersed with ordinary encaustic tiles so as to
give a pleasing design to the surface.
In the accompanying drawing
Figs. 1 and 2 show a plan and section of a portion of a reflecting pavement light
with square lenses and the spaces and margin filled in with a pattern composed
partly of the metal tiles and partly of ordinary encaustic tiles and in which
AA are the glass lenses B B the iron supporting frame CC the metal tiles
DD the ordinary or encaustic tiles and E E the cement or other material used for
bedding the tiles and filling the perforations.
Figs. 3 and 4 show a similar light but with octagonal leuses, the metal tiles in
this case being made with circular perforations.
Figs. 5 and 6 show a light with square lenses in which metal bars with circular
projections are used in place of metal tiles.
Figs. 7 and 8 show a coal plate with hexagonal lenses in which metal tiles are
used throughout.
Fig. 9 shows a plan and section of one of the forms of metal tiles as applied to
the light shown in Figs. 1 and 2.
Fig. 10 shows a plan and section of one of the forms of metal bars with projections
as used in light shown in Figs. 5 and 6.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1st. The application and use of tiles either solid or perforated composed of lead
zinc copper aluminium or other suitable metal or alloy in combination with glass
and cement or asphalte to form the top surface of pavement lights and the like
substantially as and for the purposes herein before described and illustrated.
2nd. The application and use of bars with projecting pins made of lead zinc
copper aluminium or other suitable metal or alloy in combination with glass and
cement or asphalte to form the top surface of pavement lights and the like
substantially as & for the purposes herein before described and illustrated.
Dated this 22nd day of December 1896.
J. A. WILLMORE.