IMPROVEMENTS IN GAS OLAMITRENA THE CATER
Year: 1860

page_text: LETTERS PATENT to Joseph Wadsworth, of Marple, in the County of
Chester, Mechanic, and James Wadsworth, of Salford, in the County
of Lancaster, Machinist, for the Invention of "IMPROVEMENTS IN GAS
OLAMITRENA THE CATER
"
PROVISIONAL SPECIFICATION left by the said Joseph Wadsworth and
James Wadsworth, at the Office of the Commissioners of Patents, with
their Petition, on the 22nd October 1860.
We, JOSEPH WADSWORTH, of Marple, in the County of Chester, Mechanic,
and JAMES WADSWORTH, of Salford, in the County of Lancaster, Machinist,
do hereby declare the nature of the said Invention of "IMPROVEMENTS IN
GAS BURNERS, AND IMPROVED MODES OF MANUFACTURING THE SAME," to be as
follows:-
Our improvements in gas burners (so far as the same have reference to
solid burners) consist in causing the internal cavity or canal of the stem, pipe,
or tube of the burner to terminate towards the apex of the burner in a small
bulb or enlargement of the cavity, from which bulb proceed the orifices or
orifice at which the gas is ignited) and (so far as the said improvements
have reference to sheet metal burners manufactured as herein-after mentioned)
in narrowing the pipe stem or tube of the burner a little below the apex
thereof, so as to form a neck or contracted passage, above which and between
it and the orifices or orifice through which the gas issues for consumption, the
upper part of the burner is re-expanded into a small bulb, or hollow chamber
or cavity.
Our improved modes of manufacturing gas burners consist in cutting the
same, or the parts thereof out of sheet metal, and imparting the required

page_text: configuration by stamping, compressing, or drawing with or through dies,
matrices, or punches, and (generally but not always) by the process or opera-
tion known as "knurling" or "milling," the parts being finally united (if
formed separately), and the proper orifices made by drilling or sawing. Also
in constructing burners' partly by the means above indicated), and partly by
ordinary modes, as for instance, by uniting a stem or tube formed as in a
common burner, with a nipple, tip, or apex of stamped sheet metal.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Wadsworth and James Wadsworth in the Great Seal
Patent Office on the 22nd April 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
WADSWORTH, of. Marple, in the County of Chester, Mechanic, and JAMES
WADSWORTH, of Salford, in the County of Lancaster, Machinist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of October, in the year of our
Lord One thousand eight hundred and sixty, in the twenty-fourth year of.Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Joseph Wadsworth and James Wadsworth, Her special licence that we,
the said Joseph Wadsworth and James Wadsworth, our executors, adminis-
trators, and assigns, or such others as we, the said Joseph Wadsworth and
James Wadsworth our executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN GAS BURNERS, AND IMPROVED MODES OF MANUFACTURING THE SAME,"
upon the condition (amongst others) that we, the said Joseph Wadsworth
and James Wadsworth, our executors or administrators, by an instrument in
writing under our, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that we, the said Joseph Wadsworth and James
Wadsworth, do hereby declare the nature of our said Invention, and in what

page_text: manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement, that is to say :—
Our improvements in gas burners (so far as the same have reference to
solid burners), consist in causing the internal cavity or canal of the stem, pipe.
or tube of the burner to terminate towards the apex of the burner in a small
bulb or enlargement of the cavity, from which bulb proceed the orifices or
orifice at which the gas is ignited; and (so far as the said improvements have
reference to sheet metal burners manufactured as herein-after mentioned) in
narrowing the pipe, stem, or tube of the burner a little below the apex
thereof, so as to form a neck or contracted passage, above which and
between it and the orifices or orifice through which the gas issues for con-
sumption, the upper part of the burner is formed into a small bulb, or hollow
chamber or cavity.
Our improved modes of manufacturing gas burners consist in cutting the
same or the parts thereof out of sheet metal, and imparting the required con-
figuration by stamping, compressing, or drawing with or through dies, matrices,
or punches, and (generally but not always) by the process or operation known
as "knurling" or "milling," the parts being finally united (if formed sepa-
rately), and the proper orifices made by drilling or sawing, or punching and
compressing. Also in constructing burners partly by the means above indi-
cated, and partly by ordinary modes, as for instance, by uniting a stem or
tube formed as in a common burner with a nipple, tip, or apex of stamped
sheet metal, or uniting a stem, pipe, or tube of sheet metal with the ordinary
nipple.
The nature and particulars of our Invention will be clearly understood by
referring to the figures and letters on the accompanying Sheet of Drawings, in
which the first part of our improvements relating to solid gas burners is repre-
sented in Figs. 1 and 2, and the second part relating to burners made in
whole or in part of sheet metal in Figs. 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, and 23.
The first part of our improvements relating to solid gas burners consists in
causing the internal cavity a of the burner to terminate towards the apex in
a small bulb or enlargement of the cavity as at b, from which bulb proceed
the orifice or orifices at which the gas is ignited, the bulb or enlarged chamber
is cut by a tool made expressly for the purpose, and is intended to be formed
in all the kinds of burners to which it is capable of being adapted.
The second part of our improvements represented in Figs. 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, and 23; consists in
forming gas burners either entirely or in part out of sheet metal, and imparting

page_text: the required configuration by stamping, compressing, or drawing with or
through dies, matrices, or punches, and (generally but not always), by the
process or operation known as "knurling" or "milling." In some cases the
burners are formed each of one piece, and in others they are formed of two
or more parts, and afterwards pressed or united together, and the orifices or
orifice at which the gas is ignited, are made by drilling or sawing, or punching
and compressing according to the kind of burner.
gas.
Fig. 3 is a longitudinal section, and Fig. 4 an external view of a batswing
burner made out of sheet metal; Fig. 5 is a longitudinal section, and Fig. 6
an external view of a burner, with a sheet metal stem; pipe, or tube, and a
solid nipple of metal or earthenware, the parts being shewn detached in Eigs. 7
and 8, the stem, pipe, or tube of the burner is represented at c, being open at
the bottom, or having a small hole as at d for the admission of the The
nipple is shewn at e, and is fitted tightly in the top of the stem; Fig. 9-is a
longitudinal section, and Fig. 10 an external view of a union jet burner made
of sheet metal, the orifices at which the gas is ignited being drilled in the
usual manner; Fig. 11 is a longitudinal section, and Fig. 12 an external view
of an economical burner made of sheet metal; Figs. 13, 14, 15, and 16 being
views of detached parts of the same. The stem, pipe, or tube of the burner
which is inserted into the supply pipe is shewn at f, in the interior of which is
the plug g for checking the issue of the gas, so that it may pass gradually to
the upper chamber h, having at the top the orifice at which the gas is ignited,
the three parts are made separately, the top of the stem being formed with a
flange or cup i, Fig. 14, so as to hold the plug 9 and the chamber h, after
which the upper edge of the cup is pressed down, and unites the parts tightly
together as shewn in Figs. 11 and 12; Fig. 17 is a longitudinal section,
and Fig. 18, an external view of another arrangement of union jet burner
made of sheet metal; Figs. 19 and 20 shewing two of the parts detached.
The stem k which is inserted into the supply pipe, and the plug in the interior
of the stem are the same as those shewn in Figs. 14, 15, and 16, but the
chamber m has in its interior a stamped casing n with grooves or orifices
pressed in the sides as shewn in the transverse section Fig. 20, which grooves
communicate with a hole o at the top of the chamber m where the gas is
ignited, which arrangement of stamped grooves and hole answer the same
purpose as the drilled holes in the ordinary union jet burner.
Fig. 21 is a section of one arrangement of a sunlight burner made of sheet
metal, having as many nipples as required projecting from the top, in which
nipples are the orifices or orifice at which the gas is ignited.
The stem which is inserted into the supply pipe is shewn at p, having in it

page_text: the chamber q, which is united to the stem in the same manner as Figs. 11
and 12. The nipples have orifices at which the gas is ignited either at the
top as at s, or at the side as at t.
Fig. 22 is a longitudinal section, and Fig. 23 an external view of an
economical burner made partly of sheet metal and partly by the ordinary
mode, that is, with a sheet metal stem, plug, and chamber, and the ordinary
nipple. The plug and stem are similar to those shewn in Figs. 14, 15, and
16, but the chamber is formed as at u, so as to hold the ordinary nipple v.
the two being pressed firmly together after the chamber is inserted and pressed
in the stem. The aforesaid burners and parts of burners made of sheet
metal, pass through a series of operations of annealing, drawing, and pressing,
the number of which vary according to the length required, after which the
burners or parts of burners are knurled or milled to the desired shape.
Having now described the nature and particulars of our said Invention,
and the manner in which the same is to be performed, we desire it to be
understood that we claim first, in solid gas burners, the enlargement of the
upper part of the cavity or canal of the stem, pipe, or tube of the burner.
Secondly, the formation of gas burners by stamping, drawing, and pressing,
knurling, or milling.
And, thirdly, the formation of parts of gas burners by means of stamping,
drawing, pressing, knurling, or milling.
In witness whereof, we, the said Joseph Wadsworth and James Wads-
worth, have hereunto set our hands and seals, this Nineteenth day
of April, in the year of our Lord One thousand eight hundred and
sixty-one.
Signed, sealed, and delivered by the
within-named Joseph Wadsworth
and James Wadsworth, in the
presence of
JOSEPH WADSWORTH. (L.S.)
JAMES WADSWORTH.
E. J. HUGHES, Patent Agent,
Manchester.
(L.S.)