Improvements in Means for Reflecting Light.
Year: 1898

page_text: Date of Application, 29th Dec., 1898
Complete Specification Left, 29th Sept., 1899-Accepted, 4th Nov., 1899
Improvements in Means for Reflecting Light.
I, CHARLES MARTY, of 10, Lisle Street, Leicester Square, in the County of
London, Electrical and Mechanical Engineer, do hereby declare the nature of
this invention to be as follows:-
This invention relates to improvements in reflecting means whereby light
can be reflected in an efficient manner and also sometimes some of the light can
pass unsubdued through the reflector to act as an illuminant at the reverse side
thereof
According thereto reflectors are constructed with their reflecting surfaces com-
posed of several small pieces each having a concave reflecting surface adapted
to reflect rays of light Such reflecting pieces may be formed of any suitable
shape and of suitable material such as sheet metal formed with reflecting
facets and silvered, nickel-plated, or otherwise polished on the concave side.
In some cases these reflecting pieces are so arranged relatively to one another as
to leave spaces between them through which more or less light can pass un-
interruptedly to the opposite or reverse side of the reflector.
Reflectors according to this invention can be made in various forms to suit
different requirements. For example the concave reflecting pieces may be
connected together to form large sheets the several pieces being arranged either
close together or with spaces between them Or several pieces may be assembled
to form a concave reflector Reflectors so formed may also be constructed in two
or more layers so arranged that by a slight relative movement thereof the light
passing through may be varied as desired or be entirely shut off
In one form of construction, suitable for use with gas and other lamps or
burners, which will now be described by way of example, the reflecting surface
which may be inclined somewhat like a frustum of a cone is formed of a number
of the said reflecting pieces conveniently shaped like a rhombus and arranged
diagonally with the adjacent corners connected so as to form rows extending
lengthwise between the upper and lower edges of the reflector, the reflecting
pieces being larger at the bottom than at the top Or each row of reflecting
pieces may be formed of one strip of metal shaped for example like several
rhombs arranged lengthwise corner to corner The arrangement is such that a
requisite number of these rows can be arranged side by side around the frustum
with the horizontal diagonals of the rhombs disposed in circumferential lines
whereby an effective composite reflecting means is obtained with spaces between
the several reflecting pieces through which light can directly pass. The reflecting
pieces may be supported and held to form the conical reflector by upper and
lower wire rings of small and larger diameters respectively, suitably /connected
together, and to which the upper and lower ends of the rows of reflecting devices
are respectively attached, the lower ring of larger diameter being also carried
by supports from another ring of smaller diameter, adapted to be held or
supported by a fixed part or parts of the lamp.

page_text: In some cases the hombs may be arranged so as to touch one another at
their edges whereby an uninterrupted reflecting surface is produced all the light
being thereby reflected. Or by employing two such surfaces with spaces between
the rhombs, they can be so relatively placed that the rhombs of the one coincide
with the rhombs of the other whereby light can pass through both surfaces and
upon a slight movement being given to one reflecting surface the spaces of the
one can be covered by the thombs of the the other thereby causing all the light
to be reflected
Reflecting pieces such as hereinbefore descubed may advantageously be em-
ployed with electric glow lamps or other lamps, the hombs or other shaped
pieces being disposed radially around the lamp and carried by a 1ng or other
carrier
84
I, CHARLES MARTY, of 10, Lisle Street, Leicester Square, in the County of
London, Electrical and Mechanical 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
This invention relates to improvements in reflecting means whereby light
can be reflected in an efficient manner and also sometimes some of the light can
pass unsubdued through the reflector to act as an illuminant at the reverse side
thereof
According thereto reflectors are constructed with their reflecting surfaces com-
posed of several small pieces each having a concave reflecting surface adapted
to reflect rays of light Such reflecting pieces may be formed of any suitable
shape and of suitable material such as sheet metal and are formed with reflecting
facets and silvered, nickel-plated, or otherwise polished on the concave side
In some cases these reflecting pieces are so arranged relatively to one another as
to leave spaces between them through which more or less light can pass un-
interruptedly to the opposite or reverse side of the reflector
Reflectors according to this invention can be made in various forms to suit
different requirements. For example the concave reflecting pieces may be
connected together to form large sheets the several pieces being arranged either
close together or with spaces between them Or several pieces may be assembled
to form a concave reflector Reflectors so formed may also be constructed in two
or more layers so arranged that by a slight relative movement thereof the light
passing through may be varied as desired or be entirely shut off
t
Figs. 1 and 2 of the accompanying illustrative drawings show respectively,
in underside view and vertical section, one construction of reflector according to
this invention suitable for use with gas and other lamps or burners
Fig 3 shows one of the reflecting pieces in face view, and Figs 4 and 5 are
cross sections thereof on the lines A A and B B respectively of Fig 3
In this example, the reflecting surface which is inclined somewhat like a
frustum of a cone is formed of a number of reflecting pieces 1 conveniently of

page_text: rhomb shape arranged diagonally with the adjacent corners connected so as to
form rows extending lengthwise between the upper and lower edges of the reflector,
the reflecting pieres being larger at the bottom than at the top Each reflecting
piece 18 made of sheet metal stamped to a concave shape on its reflecting side
and formed on that side with a number of facets (see Figs. 3, 4 and 5) having a
polished reflecting surface Each row of such reflecting pieces may if desired,
be formed of one strip of metal shaped for example like several rhombs arranged
lengthwise corner to corner The arrangement in each case is such that a
requisite number of these rows are arranged side by side as shown around the
frustum with the horizontal diagonals of the rhombs disposed in circumferential
lines, whereby an effective composite reflecting means 18 obtained with spaces 2
between the several reflecting pieces through which light can directly pass.
Other similarly shaped reflecting pieces may be arranged in the spaces 2 between
the adjacent rows of reflecting pieces as shown at 1. The rows of reflecting
devices 1 may be supported and held to form the conical reflector by upper and
lower wire rings 3 and 3 of small and larger diameters respectively, suitably
connected together, as by length of wire 4, and to which the upper and lower
ends of the rows of reflecting devices are respectively attached, the lower ring
of larger diameter being also carried by wire supports 5 from another ring 6
of smaller diameter adapted to be held or supported by a fixed part or parts of
the lamp.
Figs. 6 and 7 are similar views to Figs. 1 and 2 respectively, showing a
modified construction in which the reflecting devices 1, each of which 18 like
that shown in Figs 3, 4, and 5, are grouped more closely together than in the
construction shown in Figs 1 and 2, and the reflector formed by such devices
18 carried by a rod 7 that is suitably adapted, as by an ordinary spring clamp 8,
to be readily applied to any suitable support such as a gas supply pipe, or a
pillar, or a candle, so as to hold the reflector above a burner or lamp carried
by such pipe or pillar, or above a candle flame
In some cases the rhombs or reflecting devices 1 may, as shown in face view
in Fig 8, be arranged so as to touch one another at their edges, whereby an
uninterrupted reflecting surface is produced, so that practically all the lights
will be reflected therefrom, none passing through the reflector as in the arrange-
ments shown in Figs 1 and 2 and Figs 6 and 7
By employing two reflecting surfaces having spaces 2 between the rhombs 1
they can be so relatively placed that the rhombs of the one coincide with the
rhombs of the other whereby light can pass through both surfaces, and upon a
slight movement being given to one reflecting surface, the spaces of the one
can be covered by the rhombs of the other, thereby causing practically all the
light to be reflected Fig 2 shows in dotted lines, a second reflector 9 similar
to that hereinbefore described with reference to and shown in Figs 1 and 2,
supported just above the first reflector by its ring 6* which 18 loosely carried by
a grooved collar 6 on the ring 6 of the first reflector.
Reflecting means such as herein before described may advantageously be em-
ployed with electric glow lamps or other lamps, the rhombs or other shaped
reflecting pieces 1 being disposed radially around the lamp and carried by a ring
or other suitable carrier
By the use of rhomb or other shaped reflecting devices such as described and
shown, efficient reflectors can be easily and cheaply constructed
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is.
1. A reflector having its reflecting surface composed of a number of concave
reflecting devices each made of a rhomb or other suitably shaped piece of
material formed with a number of reflecting facets, the said reflecting devices
being arranged either close together or with spaces between them, substantially

page_text: 'as hereinbefore described with reference to the drawings for the purposes
specified.
2-The herein described improved reflectors constructed as hereinbefore des-
cribed with reference to and shown in Figs. 1 to 5 inclusive; in Fig 6 and 7;
and in Fig. 8 of the drawings annexed.
Dated this 29th day of September 1899.
y of September 1899.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W C.,
Chartered Patent Agent
Dated this 29th day of September 1899.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W C.,
Chartered Patent Agent