IMPROVED ATTACH- MENTS TO FISH TAIL AND OTHER GAS BURNERS FOR EXPANDING AND IMPROVING THE LIGHT
Year: 1879

page_text: LETTERS PATENT to Frederick James Harrison, of Crescent Street, Notting
Hill, in the County of Middlesex, for the Invention of "IMPROVED ATTACH-
MENTS TO FISH TAIL AND OTHER GAS BURNERS FOR EXPANDING AND
IMPROVING THE LIGHT,”
Sealed the 9th September 1879, and dated the 19th March 1879.
PROVISIONAL SPECIFICATION left by the said Frederick James Harrison at
the Office of the Commissioners of Patents on the 19th March 1879.
FREDERICK JAMES HARRISON, of Crescent Street, Notting Hill, in the County of
Middlesex. "IMPROVED ATTACHMENTS TO FISH TAIL AND OTHER GAS BURNERS
FOR EXPANDING AND IMPROVING THE LIGHT."
The object of this Invention is to promote the easy and perfect combustion of gas
so that increased brilliancy may result.
The Invention consists in affixing by means of a spring or boss to the gas nipple
a corrugated plate of metal, so arranged that in a fish tail burner one of the holes
may be divided in two parts; the plate is then bent over towards the uncovered
hole at an angle of about 30°, by this arrangement the flame is not divided, but the
gas escaping from the divided hole on the outer side of the plate is not ignited until
it arrives at the outer diameter, it thus carries with it a large quantity of air; the
plate also carries a large amount of air to feed the flame, thus producing more
perfect combustion and increasing the illuminating power 75 per cent.
This object has hitherto been attempted by fixing a plain metal plated between
the holes in the burner so as to split the flame, but an unsteady light is the result;
by employing a slightly corrugated sloping plate and attaching it to the nipple so
as to divide one of the holes only, as above described, the light is increased in
volume, brilliancy, and shadyness, the corrugations in the plate conveying more air
than a flat plate, a flat plate in more cases can be employed. Similar plates may
be attached to bat's wing or other burners, but to one side, so as not to split the
flame.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Frederick James Harrison in the Great Seal Patent Office on the 19th
September 1879.
FREDERICK JAMES HARRISON, of Crescent Street, Notting Hill, in the County of
Middlesex. "IMPROVED ATTACHMENTS TO FISH TAIL AND OTHER GAS BURNERS
FOR EXPANDING AND IMPROVING THE LIGHT."
The object of this Invention is to promote the easy and perfect combustion of
gas, so that increased brilliancy may result. The Invention consists in affixing by
means of a spring or boss to the gas nipple a plain or corrugated plate of metal, so
arranged that in a fish tail burner one of the holes may be divided in two parts;
the plate is then bent over towards the uncovered hole at a slight angle, say, 30°,
more or less; by this arrangement the flame is not divided, but the gas escaping
from the divided hole on the outer side of the plate is not ignited until it arrives
at the outer diameter; it then carries with it a large quantity of air, and the gas
escaping from the outer hole impinges upon the plate; the plate thus effects three
objects, viz., heating the gas as it escapes, expanding the flame, and attracting a
large amount of air to feed the flame, thus producing more perfect combustion and
increasing the illuminating power to a very large extent. This object has hitherto
been attempted by fixing a plain metal plate between the holes in the burner so
as to split the flame, but an unsteady light is the result; by employing the plate
above described the light is increased in volume, brilliancy, and steadiness. The
corrugated plate is more adapted for batswing burners, as it carries more air than
a flat plate, but a flat plate may be employed.
In the annexed Drawings, Figs. 1, 2, and 3, shew the plate attached to fish tail
burners; Fig. 4 shews the plate attached to a batswing burner. In each Figure
A is the burner; C, the plate; and B, the boss or spring by which the plate is
attached to the burner. Figs. 1, 2, and 3 are front, and side, and top views
of the plate in position on a fish tail burner, and Figure 4 is a side view of the
plate in position on a batswing burner.
Having thus described the nature of my Invention and the manner of applying
the same, I observe that I do not confine or restrict myself to the exact forms or
shapes or precise details of the arrangement above described nor the application
to any particular description of burner, as many variations may be made without
deviating from the principles or main features of the said Invention; but what I
claim as original and therefore claim as the Invention is, applying to gas burners
of any description an appliance consisting of a metal plate affixed to the side of the
burner, as herein before described, in such a manner as to expand without splitting
the flame but thereby increasing the illuminating power of the gas.
:
In witness whereof, I, the said Frederick James Harrison, have hereunto set
my hand and seal, this Nineteenth day of September, in the year of our Lord.
One thousand eight hundred and seventy nine.