IMPROVED ADJUSTABLE REFLECTORS FOR LAMPS AND LIGHTING PURPOSES
Year: 1867

page_text: LETTERS PATENT to Francis Vere Wright, of Saint James' Place, in the
City of Westminster, and County of Middlesex, Gentleman, for the
Invention of "IMPROVED ADJUSTABLE REFLECTORS FOR LAMPS AND LIGHTING
PURPOSES."
Sealed the 23rd August 1867, and dated the 27th February 1867.
COMPLETE SPECIFICATION filed by the said Francis Vere Wright at the
Office of the Commissioners of Patents, with his Petition and Declaration,
on the 27th February 1867, pursuant to the 9th Section of the Patent
Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FRANCIS
VERE WRIGHT, of Saint James' Place, in the City of Westminster, and County
of Middlesex, Gentleman, do hereby declare the nature of my said Invention
of "IMPROVED ADJUSTABLE REFLECTORS FOR LAMPS AND LIGHTING PURPOSES," and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement thereof, that is to say:
The nature of the said Invention consists in combining lighting jets or
flames with reflectors that are provided with arrangements for adjusting their
positions in the manner hereafter particularly described, whereby I am enabled
from time to time to adjust or regulate the position of such reflectors and
lighting jets or flames so that the light proceeding therefrom may be thrown
in a particular direction or directions, or be still more generally diffused, as
required.

page_text: Having thus described the nature of the said Invention I now proceed to
particularly describe and ascertain in what manner the same is to be per-
formed, which I shall do by referring to the accompanying Drawings, that
Figure 1 is a front elevation of a lamp with reflectors and improved adjusting
mechanism fitted thereto; Figure 2, back elevation, or as viewed at B,
Figures 4 and 5; Figure 3, side elevation, or as viewed at C in Figures
4 and 5; Figure 4, plan below the crank of the central gas tube, shewing
cranked portion out of centre, and also shewing the support of the gas arms,
but not the support of the reflectors; Figure 5, plan at centre, shewing shell-
like reflectors hinged round central gas pipe, but not shewing the supporting
gas arms; Figure 6, back elevation, shewing a third reflector fitted in between
the backs of the other two reflectors, such third reflector being likewise shewn
in dotted lines in Figure 5, and the mode of hanging or fixing the same is
shewn in dotted lines in Figure 3. In any of the said Drawings wherever the
following letters appear they denote the same parts.
A, the central tube which supports the whole arrangement, which, in the
case of gas lights, as shewn in the Drawings, is the duct for conveying the
gas to the jets; B is the cap or crown of the lamp; C, the lamp globe or
glass; D, the top kerb. perforated part of frame; E, hinges which are made
with collars fitted on and secured by set screws to the said tube A, and by
means of these hinges the reflectors are secured to the said tube, and may be
adjusted as requisite; F are the tubes for the jets or flames, which tubes pass
through the said reflectors so as to allow the jets or flames to appear in the
fronts of the same, these jet pipes (F) being jointed to the enlarged part of
central tube, as shewn, so as to allow of their being turned into different
positions, according to the positions in which the reflectors are placed;
G (dotted lines) are staple hooks on the backs of the two front reflectors (H)
for receiving corresponding hooks G* (dotted lines) on the back of the third
reflector (H), by which means the said third reflector can (when used) be
securely fastened to the two others. The result of the above-described
arrangements will be that the said reflectors may be turned on the hinges.
aforesaid, and the jet pipes also be turned so that the same may stand at such
different angles as regards the centre as may be desired, whereby the rays of
light will be thrown together, or made to diverge, or be diffused to an extent
closely approaching what would be the case if no reflectors were used.
It will be observed that the reflectors are made in imitation of shells, but

page_text: I do not confine myself to that particular shape, and such reflectors may be
opaque or translucent, according to the requirements of the user.
It will also be observed that (as before mentioned) the central tube A is
cranked, as shewn in Figures 3 and 4 at *, with the view to allow the jet joints
to be as near the centre as possible.
The Drawings represent the Invention as applied to a pendant gas lamp,
but it will be readily understood that it may be applied to a standard or bracket
lamp; and, further, the glass globe may be dispensed with if naked lights bo
preferred; also that the details of construction may be varied to suit other
nodes of lighting than by gas.
Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed or carried into
practical effect, I hereby declare that I claim the Invention as herein-before
described, it being understood that I do not claim the several constituent
parts per se and apart from the purposes of my said Invention, as herein
set forth.
In witness whereof, I, the said Francis Vere Wright, have hereunto set
my hand and seal, this Fourteenth day of December, in the year of our
Lord One thousand eight hundred and sixty-six.
0
Witness,
H. BANKS WRIGHT,
Shelton, n. Newark,
Notts.
FRANCIS VERE WRIGHT. (L.B.)