An Improved Self-clearing Burner for Acetylene Gas.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
An Improved Self-clearing Burner for Acetylene Gas.
CHARLES LOWE LAURI, Actor, 168, Camden Road, London, N.W., do hereby
declare the nature of this invention to be as follows:-
I construct from brass or other suitable metal a small tube A tapped and
tapered to one end; into this, is screwed another tapped tube B with bevelled
dange B; in the centre of this is placed a fine wire C and two holes G G of
cap is
required size; over this the cap 1) is placed with a small opening D'; this
screwed to an outer cap which is also flanged F F; these caps can be joined
together either by screwing or soldering. When the cap is screwed down the
screw B, the wire C rises through opening D₁ in cap D and clears the opening
from any carbon deposit which the combustion of the acetylene gas may have
caused. When unscrewed the wire C withdraws itself, leaving the opening I)¹
perfectly clear. A gas tight joint is made by having a washer E of asbestos or
other suitable material, I claim for my invention that it is a simple and quick
method of removing any deposit of carbon which may form in a burner burning
acetylene gas. My system can also be applied to batswing as well as rat tail
burners.
Dated this 21st day of April 1898.
An Improved Self-clearing Burner for Acetylene Gas.
I, CHARLES LOWE LAURI, of 168, Camden Road, London, N.W., Actor, 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 follow-
ing statement:-
My invention relates to burners for use with acetylene gas. A burner for use
with acetylene gas requires a much smaller orifice for gas than is required in a
burner using coal gas and giving the same amount of light. This makes the
orifice very liable to become clogged with either dust or carbon deposit.
The object of my invention is to enable the burner to be readily cleaned with-
out removal from its support.
My invention consists in providing in the burner a wire or other suitable clear-
ing device adapted to clear the gas orifice or nozzle when a relative motion is
produced between the wire and the orifice or nozzle and in means for obtaining
readily gas tightness of the parts of the burner on the completion of the relative
Price 8d1

page_text: .
motion. The burner tip may be made of any of the well known suitable materials
such as steatite or glass or it may be made simply of metal.
My invention may be carried into effect in various ways as by mounting the
clearing wire on a support adapted to be moved so that the wire passes out
through the orifice in the burner tip, which is fixed with regard to the supply
pipe, or the support carrying the wire may form a part of and be rigidly secured
to the supply-pipe or bracket and the burner tip itself be adapted to be moved
down over the fixed wire thus clearing the orifice.
In every case the relatively moving parts should form easily a gas-tight joint
on one another when the wire is withdrawn and the burners ready for use.
Referring to the accompanying sheet of drawings-
Figure shows in section one form of my self-clearing burner.
Figure 2 is an elevation of the same.
1
Figure 3 is a section of a similar burner but having a detached tip.
Figure 4 is a sectional elevation of another form of burner adapted to use a
tip of glass or other similar material.
Figure 5 shows a duplex or batswing burner fitted with my self clearing device.
In carrying my invention into effect according to one modification see
Figures 1 and 2) I provide a screwed tube A having a head B', to which is
attached a clearing wire C. Suitable holes are provided in the head B', for the
issuing gas. The burner tip D is formed with a chamber to contain the clearing
wire C and is threaded to fit the screw on the outside of the tube A. A small
flange D with a milled edge is provided on D for screwing it up or down. The
tube A may be provided with a taper screw part A to fit an ordinary gas bracket
or other such fitting.
When the burner tip D is screwed down the wire passes through and clears
out the fine gas orifice 13; when D is screwed up again the wire is withdrawn
and the head B₁ is seated gas tight against the bottom of the tip D.
A washer A¹ of suitable material may be provided for the head B₁ to seat against.
The modification shown in Figure 3 is similar to that just described but it has
a separate steatite or other suitable tip D³ attached in any suitable manner to
the metal tip D.
In Figure 4 I shew an arrangement suitable for attaching a glass or like tip.
1) is the metal part screwing up or down on the tube A. D³ is another tube
screwed to or made solid with D and adapted to receive the cap D which screws
down on the tip D³. An asbestos or other soft ring may be provided between
the end of the tube D³ and the tip D5 to prevent breakage of the latter in screwing
up the cap D'.
Figure 5 shows a duplex or batswing burner provided with my self clearing
device.
In this modification the tube A is made to enter the side of the tip D and the
clearing wire C is placed on the inner head B₁ of a solid screw B provided with
another milled head B2. When the screw B is turned it carries the wire C
through the gas orifice D2 thus clearing it.
Two of these burner tips are placed on the arms of the tube A and the burner
is adjusted so as to cause the issuing jets of gas to impinge on one another forming
a flat flame.
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.A gas burner having a wire adapted to clear the gas orifice by the relative
positive motion in both directions of the parts of the burner substantially as
described.
2. A gas burner having a clearing wire mounted on a head adapted to form
positively a gas tight joint with the relatively moving part of the burner on the

page_text: completion of the clearing of the gas orifice, substantially as hereinbefore described.
3. The improved gas burners hereinbefore described with reference to the
accompanying drawings.
Dated this 92nd day of Tanum 1900
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
Agents.