Light Reflectors.
Year: 1890

page_text: Date of Application, 19th June, 1890
Complete Specification Left, 11th Mar., 1891-Accepted, 11th Apr., 1891
PROVISIONAL SPECIFICATION.
Light Reflectors.
I, ROBERT KERR, of Number 22, Old Burlington Strect, in the Parish of
St. James', Westminster, London, W., Architect, do hereby declare the nature of
this invention to be as follows:-
This invention has for its object improvements in the design and construction of
reflecting apparatus for illuminating rooms and other places. In carrying the said
invention into practical effect, I usually construct a frame containing a series of
reversed louvres (laths or slips like those of a so-called Venetian shutter) made of
any suitable material, and having reflecting surfaces of bright metal, mirror, glass,
enamel, glaze, polish, varnish, lacquer, paint, colour, cardboard, paper, or any
other substance or superficial finish suitable for advantageously reflecting light.
I set the louvres in the frame at any inclination or slope (transversely or longi-
tudinally) deemed to be appropriate to the purpose and the situation; or I make
them to turn on pivots or hinges or otherwise and adjust them to any such inclination
or slope at pleasure.
I place the frame or apparatus of louvres close to the inside or outside of any
window, skylight, or other opening for admitting light into a room or other place, or
in any other position and at any angle either inside or outside which may suit the
purpose of producing an improved illumination within the same by the reflection of
light from the louvres, and the apparatus is either fixed or moveable.
In other forms of my said invention I employ the louvres without a frame; I also
divide the series of louvres into sections of the same or different inclinations; or I
disturb or derange the continuity or regularity of the louvres and their reflection in
any other way at pleasure. I also make the reflecting surfaces either smooth or
rough, and either plane surfaces or curved or broken or irregular surfaces. I also
have the reflecting surfaces either on one side only or on both sides of the louvres,
and sometimes on the edge or edges thereof. I also make the louvres parallel or
not parallel, whether longitudinally or laterally, and equidistant or not equidistant.
I also sometimes form or set the apparatus on a level, or in the form of a curve, or
in any other way that may serve the purpose of advantageous reflection in the
particular situation. I also sometimes employ, instead of a series of separate louvres,
a sheet or slab of suitable material formed in imitation of a series of such louvres, or
as a substitute for them, with reflecting surfaces as hereinbefore described. I also
sometimes employ, instead of louvres, laths or slips like a so-called Venetian blind,
having reflecting surfaces specially designed for the advantageous reflection of
light. 0
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1000
COMPLETE SPECIFICATION.
Light Reflectors.
1, ROBERT KERR, of No. 22, Old Burlington Street, in the Parish of St. James',
Westminster, London, W., Architect, 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 has for its object certain improvements in the design and construc-
tion of reflecting apparatus for illuminating insufficiently lighted rooms and other
places. In carrying my invention into practical effect I usually make and put together
TDA77

page_text: a series of reflecting louvres, slips, or laths, of a narrow width (such as about one
inch), laid horizontally one above another at certain intervals (like the laths of a
so-called Venetian window blind), so as to constitute an upright combination of
inclined reflecting surfaces; and I usually set up this apparatus, either vertically or
inclined, inside an ordinary window, either in or on or close or near to the sash or
sashes, and either parallel or not parallel thereto; whereby the upper surfaces of the
louvres, slips, or laths, (sloping down inwards), catch the daylight from a compara-
tively high altitude outside and reflect it into the interior at a lower angle or angles,
either for general distribution or for special concentration.
I make the reflecting surfaces of mirror glass, or bright metal, or enamel, or of
porcelain, earthenware, or glass, or of lacquer, polish, varnish, glaze, paint, colour,
paper, cardboard, plaster, or any other substance or superficial finish suitable for
advantageously reflecting the light.
I set the louvres, slips, or laths, at any angle or angles of inclination transversely
that may be appropriate to the occasion; and I sometimes make them to turn on
pivots or hinges or otherwise so as to be adjustable to any such angle or angles that
may be thought fit. But I do not always place the said apparatus in or on or close
or near to a window; I sometimes make it to be placed (either fixed or moveable) in
any other situation that may be desirable; and I sometimes use it for reflecting
artificial light from a source which is (generally but not necessarily) out of sight.
I also sometimes place the said apparatus at or under or over or at the side of
any kind of window whatever, or any other kind of opening for admitting light,
whether such window or opening is upright, horizontal, or inclined, or however
it may be constituted. I do not confine myself to any width for the louvres, slips,
or laths, or to any interval or interspace between them; and I do not always set
them so as to lie level (longitudinally), but sometimes set them vertically or at
any desirable inclination; and not only the apparatus as a whole, but the louvres,
slips, or laths individually, may be either fixed or moveable.
I usually set or support and combine the louvres, slips, or laths on a rack or in a
frame and I sometimes make the apparatus in several separate divisions for one
window (or other source of light), and the louvres, slips, or laths in these divisions
may be set at different angles of inclination. I also make the reflecting surfaces
either smooth or rough, and either flat or convex or concave or otherwise curved or
irregular, and either parallel to each other or not parallel, and either equidistant or
not; and the reflecting surfaces may be either on one side of the louvres, slips,
or laths, or on both sides thereof; and sometimes, instead of louvres, slips, or laths,
as above described, I use rods or bars of any suitable form; and I sometimes put
together the apparatus so as to be curvilinear across the face thereof, as a whole,
either longitudinally or vertically, or horizontally, or transversely. I also sometimes
combine together the series of louvres, slips, laths, rods, or bars, by hanging them
like a so-called Venetian window blind or in any other equivalent manner.
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 construction, design, and use of an apparatus composed of narrow reflecting
louvres, slips, laths, rods, or bars, combined in the form of an upright or compara-
tively upright series of reflectors for the purpose of advantageously and conveniently
throwing light into rooms and other interior places; and I do not limit my invention
to the precise details and arrangements above described, but intend to modify all
these at pleasure without departing from the nature of my said invention.
Dated this Tenth day of March 1891
ROBERT KERR.