Improvements in Lamps and Burners for. Lighting and Heating Purposes.
Year: 1893

page_text: Date of Application, 4th Dec., 1893
Complete Specification Left, 4th Aug., 1894-Accepted, 22nd Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Lamps and Burners for. Lighting and Heating
Purposes.
ALFRED WILLIAM TRENCHARD 7 Penlline Street, Castle Road, Roath
Cardiff, Engineer do hereby declare the nature of this invention to be as
follows:-
This lamp burns without a wick and throws a greater light than any other.
Can turn light to any angle or position that flame may be required.
Forms its own gas causes its own pressure by flame passing through the centre of
the cylinder, regulated & controlled by a screw regulator on burner.
It is continuous in action while vessel of lamp remains perfectly cool and can be
refilled without danger.
It is continuous in action in all weathers wind or rain has no effect in comparision
with other lights.
Can make flame to burn various shapes, used for various purposes namely:-
Plumbers, braziers, painters, hand lamp, duck lamp, and for general lighting
purposes.
Two cylinders which can be made in brass, mallable iron and steel, each cylinder
to be fitted with hollow slieve through which flame will pass and each slieve to be
lapped with wire gauze and asbestos packing to form filter for passing gas to burner;
also burner to be made in brass, mallable iron or steel to be used as one or com-
bination of two or more burners to suit various requirements; these cylinders are
attached to an oil vessel which will be used with or without pump.
I propose to use an air cock at top of oil vessel when not using a pump.
These cylinders to be attached to oil vessel with universal joint or ball joint to
enable cylinders to be pointed to any angle required.
Single cylinder which can be made in brass, mallable iron and steel, cylinder to
be fitted with hollow slieve through which flame will pass and each slieve to be
lapped with wire gauze and asbestos packing to form filter for passing gas to burner ;
also burner to be made in brass, mallable iron, or steel to be used as one or
combination of two or more burners to suit various requirements.
Single cylinder contains a regulating screw attached to burner, for regulating
ntensity of flame..
Single cylinder is attached by universal joint or ball joint to oil vessel to enable
cylinder to be pointed to any angle required.
For painters & braziers purposes I propose attaching on hollow slieve various
ized nozzles to give size and shape of flame required.
I can attach these cylinders and burners to all classes of oil vessels now in use.
Dated at Cardiff, 4th December 1893.

page_text: Improvements in Lamps and Burners for Lighting and Heating
Purposes.
I, ALFRED WILLIAM TRENCHARD, of 7 Penlline Street, Castle Road, Roath,
Cardiff, 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 that class of lamp or burner in which a suitable liquid
fuel is passed about the flaine so as to receive heat therefrom in order to bring it to
a gaseous or partly gaseous state just previous to its emission from the jet or jets of
the burner.
The invention consists in certain improvements in these lamps or burners.
The first improvement contemplates the employment of two cylindrically annular
vessels each composed of an outer cylinder in the interior of which a hollow sleeve
is fitted in such a way as to form between the one and the other an annular chamber
closed at the ends by flanges on the cylinder or sleave which serve for attaching one
to the other. Instead of using two such cylindrical chambers, I may obtain a
partial effect by use of one chamber only; or, by using more than two I may on the
other hand obtain an increased effect. These chambers one or both may be placed
in communication with a vessel for containing the oil or liquid to be heated or
vaporized or burnt, the oil being fed through the said chambers, that is to say
through the one and thence into and through the other or others in series if more
than one, either by means of a pump or by gravity or otherwise without a pump,
an air cock being in the latter case fitted to the oil vessel for admission of air
to occupy the space of the oil that flows out.
The sleeves aforesaid may be lapped with wire guaze or asbestos to form a filtering
medium through which the fluid fuel will have to pass on its way through the
chamber or chambers; and the latter are so arranged with regard to the burner or
burners that the flame or flames from the latter pass through the aforesaid sleeves
so that the latter are heated by the flame or flames and the fluid traversing the
chambers to feed the burner or burners is converted for the whole or most part into
vapour or is heated to the desirable point.
The said chamber or chambers is or are connected to the oil vessel in such a way
that the axis of the cylinder or cylinders (for when two cylinders or chambers are
employed the axis of the one is usually in prolongation of the axis of the other) may
be directed at any desired angle in the vertical or horizontal plane.
The nozzle or nozzles through which the gas formed or heated fluid fuel issues
may be of desired shape or arrangement to give any desirable shape or size of flamė
for the use for instance of painters, braziers or others requiring to used flames of
particular shape or size and a screw regulating device may be fitted in either
cylinder to regulate the supply of fuel and the intensity of the flame.
This invention is more fully shown in the annexed drawings of which the following
is an explanation:
Fig. 1 shows a lamp with two heating chambers A and B. The oil enters the
From the heating
lamp through the hole a into the annular space of heater A.
chamber A the oil, partly heated and converted into gas, passes through the
passage into the second heating chamber B, and from the said second heating
chamber B the oil, after being further heated or more fully converted into gas,
passes out through the passage to the burner.
Fig. 2 shows a lamp with six burners to provide a powerful lamp of great
luminousity. The burners as will be seen in the side elevation are arranged so that
a certain number may be arranged in rear of the others. The induction of the air

page_text: thereby from the burners supplies those in front so that the latter may burn with
greater efficiency and produce a flame of considerable size.
Fig. 3 shows a lamp of light and handy nature comprising two or more
burners.
Fig. 4 shows the improved lamp as fitted in an oil reservoir in the usual
manner.
Fig. 5 illustrates a lamp fed by gravity from an oil reservoir.
Fig. 6 is a longitudinal section of the regulator.
The formation of the heating chambers with the annular space bounded by a
cylinder with a separate ring or sleeve enables the latter to be taken out for cleaning
purposes, for instance after unscrewing cap k, Figs. 1, 2, 3.
The lamp is provided with an improved nozzle where the oil enters the heating
chamber from the main pipe as shown at g in Fig. 2. The said cleaning nozzle is
constructed with a loose perforated diaphragm h, screwed in inside the nozzle and
made so as to be easily removed for cleaning purposes.
-
There may be used in place of or in addition to said nozzle an improved nozzle
containing a conical valve regulator as shown in Fig. 6. The said conical valve
regulator has the crown perforated at 6 through which holes the oil passes in, so to
speak, filtered condition, into the hollow space inside the said cone. From the
interior of the cone the oil passes out through holes i, and through the grooves or
channels into the heating chamber of the lainp. In the event of the holes
becoming choked the regulator may be opened or drawn back to the desired extent
by means of the screw / so as to allow the admission of oil into the lamp along the
outside of said cone.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
.
1. The chambers composed of cylinders and sleeves substantially in the manner
and for the purpose described.
2. The combination with a burner of two said heating chambers for the passage
and heating of the fuel in the manner specified.
3. The arrangement of burners for controlling size and shape of the resulting
combined flame substantially as set forth.
4. The arrangement of a screw regulating device in connection with the heating
chamber substantially as and for the purpose described.
Dated this 4th day of August 1894.
R. HADDAN,
Of the Firm of Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, Agent for Applicant.