IMPROVEMENTS IN OR CONNECTED WITH APPARATUS FOR LIGHTING OR ILLUMINATING WITH GAS
Year: 1880

page_text: LETTERS PATENT to James Lyons Sampson, of the North London Iron
"
Works, in the County of Middlesex, Engineer, for an Invention of
IMPROVEMENTS IN OR CONNECTED WITH APPARATUS FOR LIGHTING OR
ILLUMINATING WITH GAS."
ແ
PROVISIONAL SPECIFICATION left by the said James Lyons Sampson at
the Office of the Commissioners of Patents on the 7th May 1880.
JAMES LYONS SAMPSON, of the North London Iron Works, in the County of
Middlesex, Engineer. "IMPROVEMENTS IN OR CONNECTED WITH APPARATUS FOR
LIGHTING OR ILLUMINATING WITH GAS."
This Invention, which relates to certain improvements in or connected with
apparatus to be used in the lighting or illuminating of rooms and other places
with gas, has especial reference to that class of apparatus used in the production of
what is known as the "ventilated-light," and the most advantageous arrangement
of which in present use consists of an argand-burner suspended by a central
gas supply tube under a flue, through which the heated and vitiated vapors pass
away.
The objects of this Invention are to obviate many of the disadvantages attendant
upon the present arrangements of apparatus of this class, notably the difficulty and
trouble there is in placing and removing the chimney, the opalescent or other
shade or globe, and the reflector, and to render these parts much easier of access,
and to allow of them being placed in and removed from position without the
present necessity of taking the apparatus partly apart.
"
In carrying my Invention into effect I prefer to use what is known as the
Sugg argand-burner, though any other equally efficient argand burner is also
applicable, and in lieu of suspending the same by a central tube, as hitherto, I
suspend it between two or more gas supply pipes of such a shape and size as will
cast no appreciable shadow, these pipes branching from or being screwed into a
common centre piece above the burner, and re-joining or being screwed into a
similar piece below it, the burner being also screwed into the lower centre-piece.
Price G 1

page_text: These supply pipes are so arranged as that the chimney of the burner can be freely
passed between any two of them and placed in or removed from position. The
usual opalescent or semi-opaque saucer or shade can also be as easily placed in and
removed from position, and moreover the further advantage is gained that a much
smaller central opening therein is needed, and there is in consequense a less
divergence of the dazzling naked light. The size of the opening is made just
sufficient to encircle the supply pipes, so that the shade can be simply slid up them
and supported by small brackets carried thereby, the brackets being hinged to or
turning on the pipes in such a manner as to allow of them being turned inwards
to allow of the placing and removal of the shade, and of being turned outwards to
support the same. Above the light and close to the ventilating-flue I similarly
support a metal ring or collar, the brackets in this case however being, if desired,
capable of vertical adjustment by screws or otherwise, so that the reflector, which
is simply rested on the ring or collar, can be adjusted to any position which may
render it most effective. The upper branch or centre-piece, from which the gas
supply and suspension pipes descend, is connected to the main gas pipe by a ball
and socket or other suitable swing joint.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Lyons Sampson in the Great Seal Patent Office on the 6th
November 1880.
JAMES LYONS SAMPSON, of the North London Iron Works, in the County of
Middlesex, Engineer. "IMPROVEMENTS IN OR CONNECTED WITH APPARATUS FOR
LIGHTING OR ILLUMINATING WITH GAS."
This Invention, which relates to certain improvements in or connected with
apparatus to be used in the lighting or illuminating of rooms and other places
with gas, has especial reference to that class of apparatus used in the production
of what is known as the "ventilated light," and the most advantageous arrange-
ment of which in present use consists of an argand burner suspended by a central
gas supply tube under a flue, through which the heated and vitiated vapors pass
away.
The objects of this Invention are to obviate many of the disadvantages attendant
upon the present arrangements of apparatus of this class, notably the difficulty
and trouble there is in placing and removing the chimney, the opalescent or other
shade or globe, and the reflector, and to render these parts much easier of access,
and to allow of their being placed in and removed from position without the
present necessity of taking the apparatus partly apart.
ss
In carrying my Invention into effect I prefer to use what is known as the
Sugg" argand-burner 1, though any other equally efficient argand burner is also
applicable, and in lieu of suspending the same by a central tube, as hitherto, I
suspend it as illustrated in Fig. 1 of the accompanying Sheet of Drawings, the
left hand half of which is in elevation, and the right hand half in vertical section,
between two or more gas supply pipes 2 of such a shape and size as will cast no
appreciable shadow, these pipes branching from or being screwed into a common
centre piece 3 above the burner, and rejoining or being screwed into a similar
piece 4 below it, the burner being also screwed into or secured to the lower centre
piece in the manner shown. The pipes 2 are so arranged (as will be best seen on
reference being had to the cross section, Figure 2) as that the chimney 5 of the
burner can be freely passed between any two of them above the steadying collars 6,
and passed downwards between the latter onto its usual seating 7. The usual
opalescent or semi-opaque saucer or shade 8 can also be as easily placed in and
removed from position, a very small central opening therein being needed, the size
of the opening being made just sufficient to encircle the pipes 2, so that the shade
can be simply slid up them and supported by small brackets 9 carried thereby, the
brackets being hinged to or turning on the pipes in any of the ways illustrated in
Figures 1 and 3 to 5, or in any equivalent manner, so as to allow of them being
turned in wards to allow of the placing and removal of the shade, and of being
turned outwards to support the same, as illustrated in Figure 1. Above the light
and close to the ventilating flue 10 I support a metal ring or collar 11 by catches 12
engaging with pins 13 projecting within the flue, and upon this ring or collar the
reflector 14 is simply rested, and is secured in position by another ring 15, which
has bayonet catches, which engage with studs 16 projecting from the catches 12.
The rings 11, 15, are shown detached in Figure 6. The upper branch or centre
piece 3, from which the gas supply and suspension pipes 2 descend, is connected to
the main gas pipe 17 by a ball and socket or other suitable swing joint 18, and the
whole arrangement is steadied by a collar 19 and projecting screwed pins 20. This
centre piece is shown in plan view in Figure 7, and the bottom centre piece 4 is
shown in plan view in Figure 8.
Having now described the nature and objects of my said Invention, together

page_text: with the manner in which the same is to be or may be performed or carried
into practical effect, I would remark in conclusion that what I claim is,―
The suspension of the argand or other burner in what is known as the
"ventilated light" by and between gas supply pipes, which brauch from or are
screwed into common centre pieces above and below the burner, and by the lower
one of which the burner is itself supported, the pipes being arranged so that the
chimney of the burner can be freely passed between any two of them on being
placed in and removed from position, and steadied when in position by projections
therefrom, and being provided with hinged or turning brackets, which allow of
the bottom or eye-shade being placed in and removed from position upon their
being simply turned inwards, and supporting the same when turned outwards, and
the suspension of the reflector by the metal rings or collars and other means
substantially as hereinbefore described, or by any mere variation or modification of
the means herein before described and illustrated on the annexed Sheet of
explanatory Drawings.
In witness whereof, I, the said James Lyons Sampson, have hereunto set
my hand and seal, this Fifth day of November, in the year of our Lord
One thousand eight hundred and eighty.
J. LYONS SAMPSON. (L.S.)