Improved Means for Supporting Hanging Gas Lamps or Lights.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improved Means for Supporting Hanging Gas Lamps or Lights.
I, WALTER JONATHAN CHESTERTON, of Leicester Square, Lichfield Street,
Walsall, in the County of Stafford, Gas Fittings Manufacturer, do hereby declare
the nature of this Invention to be as follows:-
This Invention consists of the herein described improved means for supporting
gas lamps or lights to enable the same to be raised or lowered and in some cases
to be swung round to occupy different positions as may be required. My Inven-
tion is particularly applicable for hanging incandescent gas lights from the
ceiling of a room.
In carrying out my Invention the gas lamp or light which may be of any con-
venient kind' is fixed to the lower end of an indiarubber or other flexible tube the
upper end of this tube being fixed to a short arm or pipe connected to the ball and
socket joint or other ceiling fitting so that the gas will pass along this india-rubber
tube and down one or more of the metal tubular parts of the gas lamp or light to
the burner of the same. This flexible india-rubber pipe does not hang straight
down from the aforesaid arm or fitting to the light or lamp but passes under a
pulley which supports a counter-balance weight and then passes up and over
another pulley which is carried by a bracket or arm from the aforesaid arm or
fitting; thus when the lamp or light is raised the counter-balance will be lowered
and when the lamp or light is pulled down the counter-balance will rise. This
counter-balance weight is made of a suitable weight to counter-balance the gas
lamp or light and such portion of the india rubber tube as may be necessary to
maintain the lamp or light and counter-balance in equilibrium. In order to
prevent the india-rubber tube from being stretched unduly I provide, or I may
provide, within the tube a small chandelier chain or other like chain or a flexible
wire or other inextensible core the ends of which are connected respectively to the-
gas lamp or light and to the arm or fitting so that this chain or other core will
support the weight and prevent undue tensional strain on the india-rubber tube.
It will be seen that the arrangement above described is comparatively cheap and
is very effective as the gas lamp or light can readily be raised or lowered as may
be required or can with the said upper arm or fitting be swung round to bring the
lamp or light into various positions.
As a safety guard to prevent the said counter-balance weight coming down in
contact with the opal shade of the gas light or lamp (when an opal shade is used)
and the lamp is pushed up too high, I may provide a light projecting side piece
on the counter-balance weight which side piece is formed as an eye at its outer end
through which the rubber tube from the lamp or light passes so that when the
lamp is raised up as high as it will go the upper part of the lamp will come into
contact with the eye and thus form a stop to prevent the lamp or light from being
raised farther.
When I make the said arm of the fitting so long that the counter-balance weight
and the lamp are at some considerable distance apart, I require to use two pulleys

page_text: for the india-rubber tube to pass over, one of these pulleys being situated at or
near that end of the arm from which the lamp or light depends and the other
pulley being situated near the other end of the arm from which the counter-
balance weight depends. The action is the same as in the arrangement of my
Invention first above described.
Instead of or in addition to the said chain or flexible wire or the like being
arranged inside the india-rubber tube to prevent the same from being stretched
unduly as above described, I may for the same purpose arrange one or more chains
flexible wires or the like outside the flexible tube passing over guide pulleys at the
side or sides of the guide pulleys round which the flexible tube passes.
Dated this 23rd day of January 1897.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
Improved Means for Supporting Hanging Gas Lamps or Lights.
I, WALTER JONATILAN CHESTERTON, of Leicester Square, Lichfield Street,
Walsall, in the County of Stafford, Gas Fittings Manufacturer, 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 consists of the herein described improved means for supporting
gas lamps or lights to enable the same to be raised or lowered and in some cases
to be swung round to occupy different positions as may be required. My invention
is particularly applicable for hanging incandescent gas lights from the ceiling of
a room.
I will describe my Invention by referring to the accompanying drawings on
which Fig. 1 is a front elevation of a hanging gas lamp supported and arranged in
accordance with my Invention; Fig. 2 is a plan of the upper part of the same;
Fig. 3 is a front elevation and Fig. 4 is a side elevation of a slightly modified
arrangement of the same and Fig. 5 is a sectional elevation of a part of my
Invention.
The same letters of reference indicate the same or corresponding parts in all
the Figures of the drawings.
In carrying out my Invention the pendant gas lamp or light A which may be of
any convenient kind is fixed to the lower end 6 of an india-rubber or other flexible
tube B the upper end of this tube being fixed to the end c¹ of a short arm or
pipe C connected to the ball and socket joint D or other ceiling fitting so that the
gas will pass from the ceiling fitting 1) along the india-rubber tube B and down
one or more of the metal tubular parts a¹ of the gas lamp or light A to the burner
of the same. This flexible india-rubber tube B passes under the pulley E which
supports the counter-balance weight and then passes up and over two other
pulleys GG (Fig. 1). The pulley G is carried between the two arms from the
arm or fitting C and the pulley G2 is similarly carried between the two arms c³
from the aforesaid arm C these pulleys G1 G2 being so arranged that the counter-
balance weight F and the lamp A will be at about equal distances from the vertical
centre line passing through the central fitting D and so that the counter-
weight will clear the lamp A as they move up and down. It will be seen that
by the arrangement above. described, when the lamp or light A is raised the
counter-balance I will be lowered and when the lamp or light A is pulled down
the counter-balance F will rise. The counter-balance F is made of sufficient

page_text: weight to counter-balance the lanip or light A and such portion of the india-rubber
tube as may be necessary to maintain the lamp or light in equilibrium.
In order to prevent the india-rubber or other flexible tube 13 from being stretched
unduly provide, or I may provide, within the tube B a small chandelier chain or
I
other like chain or a flexible wire or other inextensible core H (see Fig. 5) the
ends of which are respectively connected to the top of the gas lamp or light A and
to the bottom of the arm or fitting so that this chain or core H will support the
weight and prevent undue tensional strain on the india-rubber tube B. The ends
of the said chain or core H can readily be connected to the top of the gas lamp A
and to the bottom end c of the tube U by a cross pin ¹ (see Fig. 5) which passes
through an eye in the end of the chain or core H and through holes in a socket 22
over the outside of which the. india-rubber tube B. is stretched and secured this
socket being made to screw into or on to the end of the tube C and into or on
to the top of the pendant gas fitting A..
The arrangement above described is comparatively cheap and is very effective
as the gas lamp or light A can readily be raised or lowered as may be required or
can with the said upper arm or fitting. C be swung round about the central joint D
to bring the lamp or light. A into various positions.
It will be evident that instead of employing the two pulleys G1 G2 for the
flexible tube B to pass over as in the arrangement illustrated by Figs. 1 and 2,
I may, as shewn for instance by Figs. 3 and 4 employ only one of the pulleys sav G
for the flexible tube B to pass over but in this case the pulley G¹ will have to be
made large enough in diameter as shewn in Fig. 3 for the hanging counter-
balance to clear the pendant lamp A. J is the usual stop-tap with hanging
chains for regulating and closing the flow of gas to the lamp A.
What I find to answer best for the flexible tube B is an india-rubber tube of best
quality enclosed in one of the well known flexible metallic tubes as the latter will
resist the tensile strain and also pass easily around the pulleys.
Instead of or in addition to the chain or flexible wire or core H being arranged
inside the indiarubber tube B to prevent the same from being stretched unduly
as above described, I may for the same purpose arrange as shewn in Figs. and 4
two (or there may be only one) flexible chains wires or the like H' H2 outside the
flexible tube B passing over guide pulleys g¹ g² at the sides of the guide pulley G¹
(or guide pulleys G₁ G²) round which the flexible tube B passes, said chains or
wires H H also passing under guide pulleys el e² arranged at the sides of the guide
pulley E of the counter-balance F. The ends of the chains wires or the
like H H are respectively fixed to the top a² of the pendant A and to the fitting
on the end of the tube c¹.
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:-
1. Suspending a hanging gas lamp or gas light by an indiarubber or other
flexible gas supply tube of limited tension which at its proper end is fixed to one
end of an arm or pipe carried by a ceiling fitting, the said flexible tube passing
down from said arm or pipe and under the pulley of a counter-weight and over
another pulley or pulleys carried by said arm or pipe so that the said gas lamp or
gas light is counter-balanced by the counter-weight and can be moved up or down
and swung round the centre of the ceiling fitting substantially as hereinbefore
set forth.
2. In an apparatus of the kind denoted under Claim 1, for suspending a hanging
gas lamp or gas light, the combination with the flexible gas supply tube of means
for limiting the tension of said flexible tube arranged in any of the several ways
substantially as hereinbefore described with reference to the accompanying
drawings.
3. The combination with a hanging gas lamp or gas light, of the swinging arm

page_text: or pipe C carried by a ceiling fitting, the indiarubber or other flexible gas supply
tube B fixed to said arm or pipe and by which the said hanging gas lamp or gas
light is suspended, means for limiting the tension of said flexible tube, the
counter-balance weight F provided with pulley E under which the flexible tube
passes, said arm or pipe being provided with a pulley or pulleys over which the
flexible tube passes from the counter-weight to the gas lamp or light, the parts
being arranged and operating substantially as hereinbefore set forth with reference
to the accompanying drawings.
4. The combination and arrangement of parts forming the means for suspending
a hanging gas lamp or gas light substantially as herein before described and illus-
trated by Figs. 1, 2 and 5 of the accompanying drawings.
5. The combination and arrangement of parts forming the means for suspending
a hanging gas lamp or light substantially as herein before described and illustrated
by Figs. 3 and 4 of the accompanying drawings.
Dated this 25th day of October 1897.
.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.