Improvements in and connected with Gas and Vapour Burners.
Year: 1895

page_text: Date of Application, 4th Dec., 1895
Complete Specification Left, 4th Sept., 1896--Accepted, 31st Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in and connected with Gas and Vapour Burners.
We, THOMAS THORP of Whitefield in the County of Lancaster Engineer, and
THOMAS GARDINER MARSH of 41 Corporation Street, Manchester in the County
of Lancaster Mechanical Engineer do hereby declare the nature of this invention
to be as follows:-
This invention relates to burners for heating purposes and consists in the con-
struction of improved apparatus by which the heat of the flame is regulated and
maintained constant at will, and the flame concentrated so as to present an even
edge, the object being to obtain greater efficiency and adaptability in a burner than
has hitherto been obtained.
The invention is especially applicable in cases where it is desired to obtain a
flame having a long, even and thin edge and of great heating power; such a flame
may be used with great advantage in the tempering of wire for the teeth of cards
and in numerous other cases.
In accordance with our invention the burner may consist of a metal sheath of
suitable shape formed for attachment at one part to a pipe and fitted at another
part with a plug of steatite or other suitable non-conductor, this plug having rows
of holes preferably of conical form and larger on the inside of the burner.
Preferably two rows of holes set in zig-zag fashion are used, each row inclining
towards the other from the inside.
This burner is in communication with a pipe formed with two branches.
In one of the branches preferably at the junction of the two is disposed a nozzle
having a comparatively small hole therein.
In connection with each branch is arranged a pressure governor of any suitable
construction.
The governor in connection with the branch having the nozzle disposed therein
is designed for the employment of air, while that in connection with the other
branch aforesaid for the employment of gas.
Suitable cocks are provided and arranged in connection with the two governors
and branches, and also means for regulating the pressure and flow of fluids in
and through the governors, air under pressure being obtained by any suitable
means.
Dated this and d...
1005
Improvements in and connected with Gas and Vapour Burners.
We, THOMAS THORP of Whitefield in the County of Lancaster, Engineer, and
THOMAS GARDINER MARSH of Examiner Buildings, late of 41 Corporation
Street, Manchester, in the County of Lancaster, Mechanical Engineer, do hereby.
declare the nature of this invention and in what manner the same is to be
Price 8d1

page_text: performed to be particularly described and ascertained in and by the following
statement:-
This invention relates to burners for heating purposes and consists in the con-
struction of improved apparatus by which the heat of the flame is regulated and
maintained constant at will, and the flame concentrated so as to present an even
edge, the object of this invention being chiefly to obtain greater efficiency and
adaptability in a burner than has hitherto been obtained.
The invention is especially applicable in cases where it is desired to obtain a
flame having a long even and thin edge and of great heating power; such a flame
may be used with great advantage in the tempering of wire for the teeth of cards
and in numerous other cases.
The improved apparatus constructed in accordance with our invention consists
chiefly of a special burner formed with a throat into which a jet nozzle from the
air supply pipe and a pipe from the gas or vapour supply leads and in conjunction
with the burner are two pressure governors of any suitable construction connected
up to the air and gas or vapour supply pipes and from which the air and gas or
vapour at determined pressures are led to the burner.
The sheet of drawings attached hereunto illustrates the special construction of
the burner and inlet nozzles. The governors are not illustrated as these may be
of any well known construction. The ratio of the pressures of air and gas or
vapour is regulated by the governors to be generally about four of air to one of
gas or vapour. This produces a back pressure in the burner of about one quarter
when the burner is alight.
In the drawings the burner is shown in four modified forms.
Figures 1, 2 and 3 illustrate three views of one form of burner.
Figures 4 and 5 and Figures 6 and 7 illustrate two views each of two
modifications, and
Figure 8 illustrates an elevation of another modification.
In each form of burner the inlet nozzles and throat are of similar construction
and the arrangement of holes pierced in the burner for the jets of flame is the
same.
The burner consists of a sheath a preferably of metal which may be of any
suitable shape and is fitted with a plug or plate 6 of steatite or other suitable non-
conductor pierced with two rows of holes b¹ 6 the holes are arranged in zig zag
fashion or in such manner that the holes in the one row are pierced opposite
the spaces in the other row as illustrated in several figures of the drawings.
The burner holes are also so pierced that each row converges towards the other
from the inside of the burner to a point or line some little distance above the
burner as illustrated in section in Figures 2, 5 and 7 so that the jets of flame shall
meet in an even line or edge. The jet holes in the burner are also by preference of
conical form being larger on the inside of the burner.
The inlet c of the burner has two supply pipes d and e leading to it the inside of
the inlet c is formed with a throat c¹. In connection with the air supply pipe d is
fitted a contracted nozzle d' leading directly into the throat c¹ Figure 1. The
hole in the nozzle is about half the area of that of the throat at its narrowest
part.
The branch d leads from the outlet of the pressure governor in the air conduit.
The pressure of air is obtained by any suitable and well known means.
The branch e leads from the pressure governor in the gas or vapour conduit;
the pressure in this case is obtained by means of a weighted bell in a tank of liquid
or by any other well known means.
In some cases we arrange the governors and so connect them together that the
fall of pressure in one governor automatically reduces the pressure in the other.
This may be effected in any of the well known ways.
•
Suitable cocks or valves are provided and arranged in connection with the
pressure governors and burner by which the outlets from the governors aré
stopped when required.

page_text: Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed we declare that
what we claim is
First. The construction of improved apparatus for producing and regulating a
thin even flame of intense heat substantially as described and illustrated and for the
purposes set forth.
Second. The construction of a burner with jets arranged in zig-zag fashion and
converging to a point or line outside the burner and throttled inlet having a central
air supply nozzle and a branch gas supply orifice leading towards the throat
substantially as described and illustrated and for the purpose set forth.
Third. The combination with a burner having two rows of jets converging
towards one another and a throttled inlet of an air supply pipe fitted with a con-
tracted nozzle in line with the throat and a junction pipe for gas or vapour supply
leading to the throat substantially as described and illustrated and for the purpose
set forth.
Fourth. The combination of a burner having two rows of jets converging towards
one another and a throttled inlet, an air supply pipe fitted with a contracted nozzle
in line with the throat and junction pipe for gas or vapour supply leading to the
throat with air and gas pressure governers connected respectively to the air and
gas supply pipes substantially as described and illustrated and for the purpose set.
forth.
R. J. URQUHART,
57, Barton Arcade, Manchester, and 6, Clayton Square, Liverpool,
Consulting Engineer and Patent Agent.