An Improved Argand Burner.
Year: 1887

page_text: Date of Application, 5th Nov., 1887
Complete Left, 11th Feb., 1888
Complete Accepted, 6th Apr., 1888
An Improved Argand Burner.
1, WILLIAM WILSON HORN, of the Firm of Horn & Son, Patent Agents, of
151 Strand Middlesex (a communication to me by Stephen G. Dodd of Fort Assina-
boine, Montana Territory United States of America, Captain and Post Surgeon,
U.S.A. Army), do hereby declare the nature of this invention to be as follows:-
This my invention relates to certain new and useful improvements in Argand
burners for lamps, and which invention consists essentially of the combination of a
safety chamber in which is a spirally-coiled tube, arranged in such a manner as to be
capable of opening out thereof. The guide for the wick is formed by a tube closed
at its lower end and open at its upper end.
Around the aforesaid tube is another tube of sufficient diameter to leave a space for
the wick.
An air chamber is suitably formed around the aforesaid outside tube, by surround-
ing the said tube with a piece of metal which encloses a space thus forming an air
chamber and in combination with which is a suitable supporting cup, formed of
perforated sheet metal.
The wick elevator may be of the ordinary construction, namely a spindle with a
thumb-and-finger disc at one end, and said spindle passed through the sides of the
burner and attached to a small toothed wheel which when revolved, elovates or lowers
the said wick as desired.
1
1007
HORN & SON,
Applicant's Agents.

page_text: COMPLETE SPECIFICATION.
An Improved Argand Burner.
I, WILLIAM WILSON HORN of the Firm of Horn & Son of 151 Strand in the
County of Middlesex Patent Agents (a communication to me from abroad by Stephen
G. Dodd of Assinaboine, Montana Territory United States of America, Captain and
Post Surgeon in U.S. Army, 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 a certain new and useful Improvement in Safety Argand
Burners for Lamps; and I do hereby declare the same to be described in the following
specification, and represented in the accompanying drawings, of which
Fig. 1 is a top view, Fig. 2 a front elevation, and Fig. 3 a vertical and trans-
verse section, of a burner provided with my invention, the nature of which is defined
in the claims hereinafter presented. Fig. 4 is a top view, and Fig. 5 a side view, of
the wick used in such burner. Fig. 6 is a detail view of part of my invention shewing
a convenient method of applying same to a flat wick burner. Fig. 7 is a section on
line of Fig. 3 shewing an alternative method of arranging the coiled tube.
In such drawings, A denotes the wick, which is woven tubular for a portion of its
length from one end of it, and from thence it is open through one side of it to its
other end that is, the part a is tubular, and the part below the portion a is slit
downward or open, like a flat wick, its width corresponding, or about so, to the
length of the circumference of the upper portion. The outer tube of the burner is
shown at B and the inner one at C, the two being concentric and the inner one being
closed at its lower end and there provided with an air duct or tube, c, to extend from
it horizontally to and to open into an annular space or chamber, d, surrounding the
lower part of the tube B, such space or chamber being closed at its bottom and open
at top, and formed within a tube, g, which at top is united to a cup, D, and at bottom
to the tube B, the whole being to enable air to pass from the chambor d, through
the duct c, into the bore of the tube C, and thence upward within such tube to the
wick.
The air-chamber d opens at top into the cup D, that surrounds the outer wick-tube
concentrically and is perforated on its sides. The stems of the wick-elevator E
extends horizontally into and out of the cup, the toothed discs ff of such elevator
projecting into the wick through openings in the side of the tube B. The cup D at
its junction with the tube g is screw-threaded, as shown at h, to admit of it being
screwed into the cap of the neck of the oil-reservoir of a lamp.
Extending from and below the tube B is a cylindrical chamber, F, which .has a
foraminous bottom and has beneath it a shallow auxiliary chamber, G, within which
is a spirally-coiled tube, H, of small bore. The tube H at its upper end opens into
the chamber G, while at its lower end it opens through the side of the said chamber.
The said tube H may however-be-coiled--outside. the..chamber G as shown in Fig. 7
where the said tube H is shewn with only one curve, but it will be readily understood

page_text: that more coils may be employed if desired. In Fig. 6 I have shewn the coil Has it
would be applied to a flat wick burner K in which I may form a chamber G in a
similar manner as shewn in Fig. 3. The said chamber F is to receive the lower or
flat portion of the wick and insulate it from the oil-reservoir, from which oil can only
pass into the chamber F through the spiral tube and thence through the foraminous
bottom of said chamber. The part in which are the chambers F and G, I make of
zinc or some material which is a poor heat-conductor, in order to prevent as much as
possible heating of the kerosene or liquid hydrocarbon or oil used in the oil-reservoir
of the lamp. In this burner the wick has to. he introduced lower end foremost into
the top of the wick-receiving space between the wick-tubes B and C, after which it is to
be pressed down therein until it may meet the elevator, which next can be used for
further depressing the wick through such space and into the safety-chamber F, the
wick in passing down by the air-duct c being caused to straddle such duct.
The coiled tube prevents the transmission of flame down the wick to the gas in the
oil-reservoir of the lamp by a barrier of oil remaining in the tube under under all
circumstances, whichever way the lamp may be tilted in handling, or by it over-
turning on a table or floor. The foraminous bottom of the wick-chamber stops the
downward movement of the wick, and not only allows the oil to flow to it, but prevents
any flame from passing through it, (the said partition).
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, 1 declare that what
I claim is
1. The combination, of the safety chamber G and the spirally coiled tube H, coiled
either inside or outside of said chamber G and entering therein, with the argand
burner, essentially as specified, consisting of the tubo C, closed at its lower end and
open at its upper end, the tube B, encompassing the tube C, the air-chamber d, the
tube the supporting-cup D, and the wick-elevator E, all arranged substantially as
and for the purposes hercin before set forth.
2. The combination, of the flat wick-burner K, of the chamber G and of the coiled
tube H arranged substantially as and for the purposes set forth.
3. The construction, and general arrangement of my said invention, all substantially
as and for the purposes hereinbefore described, set forth in the claims and illustrated
in the drawings hereunto annexed.
Dated this 11th day of February 18SS.