Year: 1885

page_text: I, THOMAS FLETCHER of Thynne Street Warrington in the County of Lancaster
Gas Engineer, do hereby declare the nature of this invention to be as follows:-
This Invention relates to Bunsen and other similar atmospheric gas burners and
has for its object to enable the gauze or its equivalent which is commonly used in
conjunction with such burners to be fixed or held in position and to be removed or
replaced with greater facility than heretofore.
$
These Improvements consist in cutting or stamping the disc of gauze perforated
metal or its equivalent to a larger diameter than is required to fit the orifice or
mouth of the burner. The edge of the disc is then turned down in such a manner
that the turned down portion will make a comparatively tight fit within the
burner in the position to be occupied by it. To prevent the gauze entering the
burner further than is required I form within the burner a shoulder or a pro-
jection or projections or an annular recess into or against which the edge of the
gauze or other material may fit or abut.
The arrangement and combination hereinbefore indicated enables the gauze or
its equivalent to be firmly secured to the burner and obviates the heretofore
existing necessity for securing the gauze to the burner by means of a binding ring
or wire, and at the same time it enables the gauze or its equivalent to be placed in
position from the top of the burner.
Dated this fourth day of November 1885.
WILLIAM E. HEYS,
Agent for the Applicant.

page_text: Improvements in Bunsen and other Atmospheric Gas Burners.
I, THOMAS FLETCHER of Thynne Street Warrington in the County of Lancaster
Gas 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:-
--
This invention relates to Bunsen and other similar atmospheric gas burners and
has for its object to enable the gauze or its equivalent which is commonly used in
conjunction with such burners to be fixed or held in position and to be removed or
replaced with greater facility than heretofore.
These Improvements consist in cutting or stamping the disc of metallic gauzę
perforated metal or its equivalent to a larger diameter than is required to fit the
orifice or mouth of the burner. The edge of the disc is then turned down in such
a manner that the turned down portion will make a comparatively tight fit within
the burner in the position to be occupied by it. To prevent the gauze entering
the burner further than is required I form within the burner a shoulder or a pro-
jection or projections or an annular recess into or against which the edge of the
gauze or other material may fit or abut.
The arrangement and combination hereinbefore indicated enables the gauze or
its equivalent to be firmly secured to the burner and obviates the heretofore
existing necessity for securing the gauze to the burner by means of a binding ring
.or wire.
And in order that this Invention may be more readily understood and carried
into practical effect I have hereunto appended a sheet of Drawings having the
similar parts in each of the figures thereon denoted by similar letters and reference
being hereinafter had thereto.
Fig. 1 represents in vertical section and in plan a part of a Bunsen burner
having these improvements applied thereto. Fig. 2 represents in vertical section
and in plan a modification of the construction shown in Fig. 1.
A is the gauze or perforated metal cap, B is the upper portion of a burner
represented as broken at C from the rest of the burner. D is a shoulder or recess
acting as a stop to the gauze or perforated cap.
It will be understood that although in the drawings I have represented my
Invention as applied to a bunsen burner I do not limit myself to this particular
application nor to the precise details of construction and arrangement shown
therein as these may be considerably varied, moreover, I am fully aware that
perforated metal or gauze caps have for some time been employed in combination
with atmospheric gas burners and I therefore do not claim as part of this my
invention the combinations or arrangement of such caps with the burners except
as hereinafter set forth.

page_text: .
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 atmospheric gas burners having a gauze or perforated metal cap, an
internal shoulder projection recess or stop against or into which the cap may fit or
abut, substantially as and for the purpose hereinbefore set forth and described.
(2.) The combination and arrangement of the metallic cap A constructed as
hereinbefore described, with an atmospheric gas burner having an internal shoulder
projection or recess acting as a stop for the cap, substantially as and for the
purpose herein before set forth and described.
Dated this fourth day of August. A.D. one thousand eight hundred and