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esla | patent
Patent Specification: 228,294
Application Date: Nov 21, 1923. No. 29,424/23
Complete Left: Aug 21, 1924.
Complete Accepted: Feb 5, 1925.
Provisional Specification
Improvements in or relating to Apparatus or Means for Reflecting Light or Heat.
I, Haydn Thies Harrison, of 14, Victoria Street, in the City of Westminster, a British subject, do hereby
declare the nature of this invention to be as follows :-
This invention relates to reflecting apparatus or means for directing light or heat into any desired
direction or concentrating it into any desired area.
Hitherto such reflectors have frequently consisted of polished metal or silvered glass,
previously moulded, bent, or otherwise formed into the required shape.
Another type has consisted of numerous small mirrors, clipped or otherwise held
in frames of desired configuration.
The present invention relates to an improvement on the latter type and it has for its object the more
accurate configuration of the shape required, lower cost of production, and complete protection of
the reflecting elements against the action of the atmosphere, where this is desired.
According to one example, the complete reflector is formed by making a convex mould of the desired configuration
and then covering the surface of this mould with numerous pieces of silvered glass cut to the right shape to completely
cover it, or with small glass beads or the like, any suitable means being employed to hold the elements temporarily in position.
A metal casting or other sutitable support having a configuration the converse of that of the mould,
of which the surface has been previously covered to an appreciable depth with a suitable plastic cement, is then pressed
on to the mould with the result that the silvered glass pieces, beads or their equivalent are embodied in the cement,
only the surfaces lying on the mould being uncovered. The casting or support is then removed taking with it
the reflector elements which remain undisturbed and occupying the desired configuration until and after the
cement is hardened, after which the whole is cleaned and excrescences of cement removed,
leaving a multiple faced reflector of the desired shape. According to this process, the cement when pressed on,
not only backs the reflectors but also surrounds the edges, thus preventing any moisture having access to
the silver backing when such exists.
Dated this 21st day of November, 1923.
For the Applicant,
Lloyd Wise & Co.,
10, New Court, Lincoln's Inn, London,
WC2,
Chartered Patent Agents.
Complete Specification
Improvements in or relating to Apparatus or Means for Reflecting Light or Heat.
I, Haydn Thies Harrison, of 14 Victoria Street in the city of Westminster, a British subject,
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 :-
This invention relates to reflecting. apparatus or means for directing light or
heat into any desired direction, or for concentrating it into any desired area.
Hitherto such reflectors have frequently consisted of polished metal or silvered glass,
previously moulded, bent, or otherwise fornied into the required shape. Another type has
consisted of numerous small mirrors attached to the foundation or body of the reflector
by a suitable cement or adhesive.
The present invention relates to an improvement on the latter type of reflector
and it has for its object the more accurate configuration of the shape thereof
required, lower cost of production, and complete protection of the reflecting
elements against the action of the atmosphere, where this is desired.
For this purpose, a reflector composed of numerous reflecting elements is, according
to the present invention formed by covering the surface of a convex mould
of the desired configuration of the reflector with numerous pieces of silvered
glass or equivalent reflecting material, cut to the right shape to completely cover
the mould, or with small glass beads or the like, any suitable means being employed to
hold the reflecting elements temporarily in position, and then pressing on to the back
of the reflecting elements supported by the mould, a metal casting or other suitable
support or backing having a configuration the converse of that of the mould, and the surface of
which has previously been covered to an appreciable depth with a suitable cement or
holding medium in a plastic condition, so that the silvered glass pieces, beads or their
equivalent will become embedded in the cement, only the surface thereof lying on the mould
being uncovered. The support or backing is afterwards removed
from the mould taking with it the reflecting elements which remain undisturbed and occupy
the desired configuration, and after the cement is hardened, the whole of the exposed
surface of the reflecting elements is cleaned and excrescences of cement removed,
leaving a multiple faced reflector of the desired shape. According to this process, the cement
when pressed on to the reflecting elements not only backs the elements but also surrounds their edges,
thus preventing any moisture having access to the silver backing of the elements when such exists.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is:-
- The manufacture of a reflector composed of numerous reflecting elements, by mounting
the reflecting elements, comprising for instance numerous pieces of silvered olass or equivalent reflecting material cut
to shape, or small glass beads or the like, on a mould of the required configuration of the reflector
pressing on to the mould and against the reflecting elements thereon, a support or backing, having a configuration
the reverse of that of the mould and the surface of which has previously been covered to an appreciable depth with a
cement in a plastic condition, afterwards removing the support or backing with attached reflecting elements
from the mould, and, when the cement has hardened, cleaning the surface of the multiple faced reflector
thus produced, substantially as described.
- Multiple faced reflectors constructed substantially as hereinbefore described.
Dated this 21st day of August, 1924.
For the Applicant,
Lloyd Wise & Co.,
10, New Court, Lincoln's Inn, London,
WC2,
Chartered Patent Agents.
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