Year: 1888

page_text: Date of Application, 21st Mar., 1888
Complete Specification Left, 20th Dec., 1888
Complete Specification Accepted, 16th Feb., 1889'
I, GEORGE RICHARD POSTLETHWAITE of the firm of The Excelsior Lamp Burner
Company of Staniforth Street, Birmingham in the County of Warwick, Manufacturer,
do hereby declare the nature of this invention to be as follows:-
This invention has reference to single flat wick burners, and is an improvement upon,
or an amplification of Letters Patent, granted to me, and bearing date the 4th day of
November 1886, and numbered 14179.
The principal object of this invention, is to obtain a flame more intense in
illuminosity, and of larger size, than has hitherto been attained, in single wick
burners, with usual sized flame slits; and further, the heat evolved in the process of
combustion, is proportionately neutralised, thereby increasing the safety of the lamp,
when burning.
The piercings which are usually employed at the base of the cone, and within the
radius of the chimney, and wherethrough cold air is supplied to the said chimney, are
dispensed with, and I employ therefor large slits or piercings at two opposite points of
the cone, just below the opposite terminations of the flame-slit. These slits or holes,
which come in front of the opposite top ends of the wick cases, are cowled, or provided
with inclined flaps or plates, directed inwardly, and with their inner directed ends,
coming within a short distance of the tops of the ends of the wick cases.
These flaps,
which constitute flame spreaders, and air distributors, are pierced from the holes or
slits in the cone as aforesaid, and with their inner ends joined to the tops of the said
holes or slits, thus making air inlet passages, cowled inwardly.
The air supplied through the apertures, impinges only upon the opposite ends of
the flame, thereby increasing its size, and illuminosity, without a corresponding
increase, in the consumption of oil.
The burner body, is made larger than usual, and provided with a series of equi-
distant, and elongated air slits, around the middle of the said body part, and with
smaller holes arranged at equi-distant points around the top part of the said body,
and at points intermediate between the larger openings below them.
Dated this Nineteenth day of March 1888.

page_text: COMPLETE SPECIFICATION.
Improvements in Hydro-carbon Oil Burners for Lamps and Stoves.
I, GEORGE RICHARD POSTLETHWAITE of the firm of the Excelsior Lamp Burner
Company of Staniforth Street Birmingham in the County of Warwick Manufacturer
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 has reference to single flat wick burners, and is an improvement
upon, or an amplification of Letters Patent granted to me, and bearing date the
4th day of November 1886 and numbered 14179.
The principal object of this invention, is to obtain a flame more intense in
illuminosity, and of larger size, than has hitherto been obtained in single wick
burners, with usual sized flame-slits; and further, the heat evolved in the process of
combustion, is proportionately neutralised, thereby increasing the safety of the lamp
when burning.
The piercings, which are usually employed at the base of the cone and within the
radius of the chimney, and wherethrough cold air is supplied to the said chimney, are
dispensed with, and I employ therefor large slits or piercings at two opposite points
of the cone, just below the opposite terminations of the flame slit. These slits or
holes, which come in front of the opposite top ends of the wick cases, are cowled, or
provided with inclined flaps or plates, directed inwardly, and with their inner directed
ends, coming within a short distance of the tops of the ends of the wick cases.
flaps which constitute flame spreaders, and air distributors, are pierced from the holes
or slits in the cone as aforesaid, and with their inner ends joined to the tops of the
said holes or slits, thus making air inlet passages, cowled inwardly.
Those
The air supplied through the apertures, impinges only upon the opposite ends of
the flame, thereby increasing its size and illuminosity, without a corresponding
increase in the consumption of oil.
The burner body, is made larger than usual, and provided with a series of equi-
distant, and elongated air slits, around the middle of the said body part, and with
smaller holes arranged at equi-distant points around the top part of the said body.
Figure 1 of the accompanying drawing, represents in vertical section, a single wick
burner of a hydro-carbon lamp, provided with improvements made according to my
present invention; this said view shows how the inwardly inclined flaps, hood
internally the opposite holes coming in front of the ends of the tops of the wick
tubes or cases, and through which holes, air currents are directed to the ends of the
flames.
Figure 2 shows an end elevation of the said burner, which thus exhibits the
dispositions of the hooded piercings in repect to other and smaller piercings, situated
just below the gallery.
Figure 3 represents a horizontal section, on the dotted lines A B figure 2.

page_text: Figure 4 shows the burner part separately, figure 5 represents a vertical section on
the dotted lines CD and E F figures 1 and 4 (viewed from the underside of the top
part of cone) while figure 6 represents an underside view of the said figure 4, showing
the pierced bridge, wherethrough the wick tube passes.
e a
The same letters of reference, indicate corresponding parts in the several figures.
a is the body of the burner, is the cone, and the cone slit; d is the gallery,
reticulated diaphragm or baffle plate, fis the wick casing, and y is the mount or foot
at the base of the body part.
The said cone b, is provided with flame spreaders, or flame deflectors h, which
incline downwardly from the ends of the flame slit, to near the tops and ends of the
wick casing, and also cowl inwardly air passages i, wherethrough air passes to the
flame.
Situated at right angles to the said spreaders, and hooded openings, are smaller
piercings, which are disposed just below the reticulated diaphragm e, under the
gallery.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
First A single wick burner, providing the cone part with flame spreaders h, and
hooded air passages i, arranged opposite the ends of a single wick casing, or flame, as
set forth.
Secondly-A single wick burner, provided with hooded air passages i, and opposite
body piercings j, constructed and arranged in respect to the other parts of the burner,
as described and set forth in the several figures of the drawing.
Dated this First day of December 1988.
GEORGE RICHARD POSTLETHWAITE.
By Henry Skerrett,
Agent for Applicant.