Improvements in or connected with Gas Lamps and Fittings.
Year: 1897

page_text: Date of Application, 21st Jan., 1897
Complete Specification Left, 21st Oct., 1897-Accepted, 18th Dec., 1897.
PROVISIONAL SPECIFICATION.
Improvements in or connected with Gas Lamps and Fittings.
ALFRED JOHN GUYAN Builder & Decorator 33 Marlborough Street, St. James
Bristol, do hereby declare the nature of this invention to be as follows:-
An Idea & arrangement for supplying gas to pilot lights of Incandescent or
other gas burners, with or without Byepass Taps, for exterior & Interior gas
lighting by means of a separate metal or other pipe carried inside the pipe, arm,
bracket, pendant or pillar supporting the said burner whereby any number of
Burners or Lamps may be lit or extinguished "simultaneously" by simply turning a
specially constructed tap or Two ordinary gas taps if preferred inside or outside the
premises for outside Lamps & in any position selected for inside lighting.
Dated this 20 day of January 1897.
Improvements in or connected with Gas Lamps and Fittings.
I, ALFRED JOHN GUYAN, of 33 Marlborough Street, St. James', Bristol, Builder and
Decorator. 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 :-
My invention relates to an improved means for conveying the gas supply to the
pilot lights of incandescent or other burners by means of a separate pipe inside the
bracket pendant, arm, or pillar on which the burners are placed and connecting
the pipes to a specially constructed tap or two separate taps at any convenient
distance from the burners, whereby any number of burners may be illuminated or
extinguished by the turning of one tap or valve or separate taps as preferred.
My invention and the means of carrying the same into effect will be fully described
in connection with the accompanying sheet of drawings, in which Figure 1 shows an
ordinary outside lamp bracket supporting a lantern with an incandescent burner, the
pilot light tube being carried through the bracket from the back; fig. 2 shows an
alternative method of carrying the small tube within the large one by bringing it in
front of the boss before insertion: fig. 3 is an alternative method of connecting the
small pipe to the pilot light of the burner; where the lanterns are rigid, dispensing
with the ball joint and special connection shown in fig. 4, which is an enlarged section;
of a special joint which supplies the main burners with gas and enables the inner
tube to be made gastight, preventing any communication between the two pipes :
Fig. 5 is a cross section of. the joint (on the dotted line 3). Fig. 6 is a section of a

page_text: valve or tap constructed to admit gas to the main or pilot tubes as desired
Fig. 7 shows a small tube formed inside a larger one, and Fig. 8 is a section o
divided tubing made expressly by supplying brackets, pendants, and the like on which
the burners are fixed.
As will be seen from the drawings, the essential element of the invention consists
in carrying the tube for the pilot light through the bracket, pendant, bar, or the like
on which the burners are fixed, and connecting the same by ordinary or special
service pipes for the pilot and main burners back to separate taps or to the special
tap herein described, special joints, shown in figs. 4 and 5 being provided to make
an airtight junction.
A is the pilot tube carried through the bracket and inserted either at the back or
in front of the boss and projecting through at the end of the bracket (to supply the
pilot lights in either of the two ways shown in figs 1 and 3, or as may be convenient.
After the pipe B is connected to the down tube at the top of the lantern, all the other
parts of the fittings are the same as those already in use.
pendants, the tubes A and B would be continued downwards direct to the burner. To
In the case of ordinary
obtain an effective joint where one tube is placed within the other, a special connection
is provided, and the parts between the dotted lines 1 and 2, in fig. 1 just above the
lantern are shown considerably enlarged in figs. 4 and 5. At the bottom of the
bracket tube D an annular disc C is inserted, being screw threaded at its outer and
inner edges, or fastened by soldering, openings E are cut in the disc for the passage
of gas to the main burners. The usual stuffing box F is attached to the interior of
the disc and the pipe B is passed through the packing into a surrounding tube G
connected by an ordinary solder joint to the end of the small tube A, the pipe B is
continued through an ordinary hall joint to the burner, (this however is not essential
where a rigid lantern is provided). By these means the outlets of gas in each tube is
quit e separate, and any slight. vibration of the lantern will not affect the permanence
of the joints, and the gas will be supplied to the main and pilot lights as required.
In fig. 6 a special tap is shown for regulating the supply to the main or pilot pipes;
a plunger H is placed in a circular chamber, which in the position shown, admits gas
through the opening I only, where by means of a valve J regulating the supply, a
small quantity of gas passes into the chamber, and by the outlet K is conveyed to
the pilot service pipe A. By means of a screw-threaded spindle L and wheel M the
plunger is raised until it reaches the position shown in dotted lines h, this shuts off
the supply to the outlet K and opens the passage N through which the gas passes to
the outlet O and on to the main burner pipe. The chamber is fitted with the
ordinary stuffing boxes to make the joints secure.
there-
In fixing the service pipes, it is desirable to have only one pipe exposed,
fore in such cases either pass one pipe through another, as shown in fig. 7, or provide
a specially constructed pipe, as shown in fig. 8, which prevents injury or leakage of
gas by the exposure of small pipes in unprotected places. Pipes so formed, if made
of hard metal, may be used for straight bars, pendants, and the like.
In operation, the gas supplies to the main burners and pilot lights are attached to
the outlets K and O, and carried by separate or special pipes (as shown in figs. 7 and 8)
to the bracket or the like: where more than one burner or lantern is used, branch
connections are made from the pipes to each bracket or burner. By turning the
wheel M, the gas is supplied to either of the service pipes, and the burner or series
of burners in connected may be turned on or off by simply turning the wheel, or if
preferred to use two ordinary taps, the same result may be obtained, but there is a
danger of extinguishing the main burners before turning on the pilot, also a liability
of leaving the pilot lights burning at the same time as the main burners, whereby
the mantles are injured, this is obviated by means of the tap shown in fig. 6, for
when the plunger at either of its extreme limits, one or other supply will be
completely shut off, consequently it is not possible for the inantles to be injured by
the two burners being in action at the same time: the plunger spindle being screw-
threaded, the raising or lowering of it is gradual, and thus a supply of gas is admitted

page_text: to one tube before that in the other is exhausted, thus preventing extinction of the
lights.
In the foregoing description and drawings, reference is made almost exclusively to
lanterns attached to outdoor brackets, but the appliances may be used in con-
junction with pendants, pillars, or bars supporting burners having a pilot light, the
slight deviations necessary to adapt them to the altered conditions being so obvious,
no description is considered to be required.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In the construction of gas lighting appliances for burners with pilot lights,
conveying the pipe which supplies the gas for the pilot light within the bracket,
pendant, or the like which conveys the gas to the main burner, and carrying the
pipes to a tap or taps placed at any suitable distance from the burner or series of
burners, whereby the pilot and main lights may be alternated as required, substantially
as herein described and shown.
2. In gas lighting appliances, the insertion of an annular disc having apertures
for the passage of gas, within the bracket or other tube, this disc receiving a stuffing
box, whereby an inner tube for pilot lights may be secured in position, allowing the
tube to accommodate itself to any slight vibration without loosening the joint, or
causing any leakage, substantially as described.
3. For use in gas lighting, the construction of a tap which will open or close the
outlet of gas into either of two tubes, or gradually diminish the supply of gas in one
while the other is being turned on, to prevent the extinction of one burner before the
gas is supplied to the other, and also to protect the mantles from damage by the leak-
age of gas, substantially as herein described and shewn.
4. In gas lighting appliances, the insertion of one tube within another, or manu-
facturing the tubes in either of the shapes shown in figs. 7 and 8, for the purpose of
supplying gas to burners and pilot lights, or for use in the construction of pendants or
brackets, substantially as herein described.
5. In gas lighting appliances, conveying the tube for the pilot light within the
ordinary bracket or pendant tube, connecting the two service pipes to a specially
constructed tap or to a couple of ordinary taps situated at a distance from the burners,
and the arrangement of a joint within the outer tube to support the inner tube, all
substantially as and for the purposes herein described and illustrated in the
accompanying drawings.
Dated this 20th day of October. 1897.