Year: 1887

page_text: Date of Application, 28th Jan., 1887
Complete Left, 28th Oct., 1887
Complete Accepted, 29th Nov., 1887
I EDWARD DAVIES of Cambridge Cottage Wood Green Middlesex, Engineer do
hereby declare the nature of this invention to be as follows:-
This invention consists Firstly, of a new or improved burner for the mixing of a
now combination of gases and air to be burnt together.
Secondly An improved mixture of gases and air for obtaining a jet of intense
heat which when impinged against a suitable material brings it into a high state of
incandescence for lighting or for heating purposes.
Thirdly a new or improved gas and mixture of same for the above purposes.
Fourthly an improved means for purifying the gases used.
According to the first part; the lower portion of burner is made on the atmospheric
or Bunsen principle, near its exit is arranged a tube conductor for a second mixture
of gas and air, or either separately, to pass into the gas and air first introduced, and
when this combination of gases and air is lighted the result is a jet of the most
intense heat, and when caused to impinge against a suitable material, the latter is at
once brought into a high state of incandescence.
According to the second part; I have found that a hydrogen gas and air introduced
at bottom of burner and an oxygen gas with or without air, introduced into upper
part, gives very good results, but I do not limit myself to the kind of gas used.
According to the third part: I have found that a gas made from saltpetre and
potash, assisted with fine sand or manganese, when combined as described with a
hydrogen gas gives very good results.
According to the fourth part: I cause the gas or gases to pass through potash in
the washer. I may also use self acting check valves to prevent any return of gas:
and I may arrange a number of small gasometers in the place of one large one.
These are so connected together that they empty one after another.
Tind th: 00:4 day of January 1807
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, W.C.,
Agent for Applicant.

page_text: I EDWARD DAVIES of Cambridge Cottage Wood Green, County of Middlesex,
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 :-
(I propose to abandon all claim to the new gas and the purifying means mentioned
in my provisional specification at clauses three and four.
This invention refers firstly, to the production of a jet of intense heat which when
impinged upon a suitable material will bring it into a high state of incandescence,
and secondly to an improved burner for the above
purpose.
A suitable jet for this purpose I can obtain by burning together a combination of
certain gases and air in a new kind of burner I have invented; such burner being
also suitable for use in various ways for mixing and burning gases for heating
purposes.
In my provisional specification of an application bearing date the 30th day of
March 1887 and numbered 4751, I have referred to the use of marble as a new and
good inaterial for a jet of heat to impinge upon for lighting purposes, and this
material I propose to use with this present invention.
To enable my invention to be properly understood I will proceed to describe the
same with aid of the accompanying drawings.
DESCRIPTION OF THE DRAWINGS.
Figure 1 sectional elevation of my lighting apparatus.
Figure 2, a modification of a part of figure 1.
A, a short tube screwed into a tap B, arranged to be screwed into a socket at C;
or it may be otherwise secured. The interior of A is fitted with a small tube E for
introduction of coal or hydrogen gas into A, on each side of A, are holes F to admit
air So far I have described an ordinary Bunsen or atmospheric burner. Screwed
into A is a tube G, with small hole at top. Fitted to the side of G, is a short tube H,
having a tap I screwed on; into this tube is screwed a conductor or small tube J,
carried up interior of G, to near hole in top. The tube J, could be attached to G,
without the help of H if desired. On the side of G, a holder K, is fixed with a set
screw, to hold a rod L.; this rod is turned round at top and connected to a holder M,
which carries the piece of marble N, for the jet of heat to impinge upon. O, set screw
to secure the marble. Or the rod L, may be a fixture to the tube G, and the marble
made as a rod to be adjusted by the set screw as shown at figure 2. In this figure M
band of metal; N1, the marble. In this arrangement the bottom of the marble for
the jet to impinge against may be round or flat.
I have found that a coal or hydrogen gas introduced at a slight pressure through E

page_text: and air drawn in at F, to mix in G, and pass out at top, and an oxygen gas at a
higher pressure than the other gas, through J, produces a jet when lighted of the
most intense heat which when impinged against a suitable material produces a
brilliant white light; but I do not limit myself to any special kind of gases and
mixtures of same and air for use with my burner.
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. In the production of light and heat the combination of parts forming my new
burner, consisting of the tube A, tube E, air holes F, tube Gand conductor J, as and
for the purposes hereinbefore described.
2. In lighting the combination with a suitable material for a jet of heat to impinge
upon, of a jet of heat obtained by burning together a mixture of coal or hydrogen
gas and air, and oxygen gas, substantially as herein before described.
Dated this 28th day of October 1887.
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, W.C.,
Agent for the Applicant.