Up: Hayward
YOR: 42 of 113
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Diagram illustrating the principle of Edward Hayward's invention
found the same block of glass or lens, taken and cut into halves, gave
quite a different result. The rays of light were now thrown quite
distinctly into certain directions, and the resultant rays of reflected
light could be varied by different angles of incidence.
The firm had been established for nearly a century
before this dramatic development occurred. Earlier types of pavement lights
had been manufactured by Edward and William Hayward for some years but they
were very much the same as those made by a dozen firms. In 1862, the order
of precedence-- and presumably of commercial importance-- on the brothers'
notepaper and bill-headings was first, Sheringham's Ventilator,
second, Arnott's Chimney Valves, third, coal plates (glazed, solid
iron or ventilating), fourth, glazed pavement lights with the various types
of stoves last of all. The catalogue of ten years later, issued shortly
after the invention had been safeguarded, was devoted purely to the
advantages of Hayward's Patent Hexagonal and Semi-Prismatic Pavement
Lights. The description given translates the formal language of the
patent deed into plain English easily understood by the working builder.
Comparisons with other types show the superiority of Edward Hayward's
lights, the first of which, it is stated, had been fixed in the pavement
round the frontage of Mansion House Buildings at the corner of Poultry and
Queen Victoria Street, where at the time of writing they are still in
service.
"Unlike any ordinary reflectors (which become
tarnished or covered with dust)," states the catalogue, "these retain
their
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