Improvements relating to Bunsen Burners.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements relating to Bunsen Burners.
We, HENRY STODDARD BISHOP, of Inglewood, Erith, Kent, Mechanical Engineer,
& CHARLES SALMON, of Thames View, Erith, Kent, Inspector of Machinery Royal
Navy, do hereby declare the nature of this invention to be as follows:-
The object of our improvements is to provide a Bunsen burner preferably for
lighting purposes, but which may also be used for heating, of an improved,
simple, and highly efficient nature, working by natural draught only.
For lighting purposes the burner would be provided with an incandescent
mantle or medium, such as the Wellsbach.
For this purpose we construct a burner having two, three, four, or an indefinate
number of small gas nipples, arranged in a ring, or rings, or a group of any
desired form, and drawing their supply of gas from a common gas reservoir which
may be of cup-shaped form, with a flat top, standing immediately over each nipple
is a small draught tube, shaped at the lower end to facilitate the air admission,
and of a suitable size and lenght relative to the opening in the gas nipple to
admit just the right quantity of air necessary for combustion.
These said draught tubes will in this grouping naturally take the same order
as the grouping of the nipples. The draught tubes all terminate at their upper
end in a common mixing chamber. We particularly desire to mention that the
cylinder or vessel forming the mixing chamber, is insulated for heat in the most
efficient manner possible from the draught tubes so that the heat generated at
the upper part of the burner and necessarily communicated to the walls of the
mixing chamber; is not communicated to the draught tubes.
By keeping these said draught tubes cool, the draught is not restricted or
destroyed in a manner such as would take place with hot tubes, owing to the
rapid expansion of the gases therein. By this feature of insulation we are
enabled to reduce the lenght and diameter of the draught tubes to a minimum
which makes the burner much neater in appearance, and more convenient to use.
To guard against the rapid destruction of mantles such as the Wellsbach in
situations subject to vibration,
We construct this burner so that the upper part carrying the mantle rests on
a delicately adjusted spring; it follows therefore that any vibration communicated
to the lower part of the burner is either modified or destroyed, by the action of
this interveining spring and the life of the mantle lengthened in consequence.
The upper part of the burner may or may not be finished in the usual way,
with provisions for carrying, globes or shades, for modifying the nature of the
light.
1000
HENRY STODDARD BISHOP.
CHARLES SALMON.

page_text: .
A
Improvements relating to Bunsen Burners.
HENRY STODDARD BISHOP, "Inglewood," Erith Road, Erith, Kent, Engineer,
CHARLES SALMON, "Oakhurst," Erith, Kent, Inspector of Machinery R.N. for-
merly of Thames View, Erith, Kent,, 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 :-
1 1
Y
Improvements relating to Bunsen burners. The object of our improvements is
to provide a Bunsen burner preferably for lighting purposes, but which may also
be used for heating, of an improved simple, and highly efficient nature, working
by natural draught only.
For lighting purposes the burner would be provided with an incandescent
mantle or medium, such as the Wellsbach mantle.
"
For this purpose we construct a burner having two, three, four, or an indefinite
number of small gas nipples, arranged in a ring, or rings, or a group of any
desired form, and drawing their supply of gas from a common gas reservoir which
may be of cup shaped form, with a Hat top. Standing immediately over each
nipple is a small draught tube, shaped at the lower end to facilitate the air
admission, and of suitable size and length relative to the opening in gas nipple to
admit just the right quantity of air necessary for combustion. The said draught
tubes will in this grouping naturally take the same order as the grouping of the
nipples. The draught tubes all terminate at their upper end in a common mix-
ing chamber. We particularly desire to mention that the cylinder or vessel
forming the mixing chamber, is insulated for heat in the most efficient manner
possible from the draught tubes so that the heat generated at the upper part of
the burner, and necessarily communicated to the walls of the mixing chamber;
is not communicated to the draught tubes.
To
By keeping these said draught tubes cool, the draught is not restricted or
destroyed in a manner such as would take place with hot tubes, owing to the
rapid expansion of the gases therein, by this feature of insulation we are enabled
to reduce the length and diameter of the draught tubes to a minimum which
makes the burner much neater in appearance and more convenient for use.
guard against the rapid destruction of mantles such as the Wellsbach in situations
subject to vibration, we construct this burner so that the upper part carrying
the mantle rests on a delicately adjusted spring. It follows therefore that any
vibration.communicated to the lower part of the burner is either modified or
destroyed by the action of this intervening spring and the life of the mantle
lengthened in consequence.
r
T
The upper part of the burner may, or, may not be finished in the usual way
with provisions carrying globes or shades, for modifying the nature of the light.
In the accompanying drawings Fig. 1 is a sec. elev.
Fig. 2 is a sec. plan at A. B.
Fig. 3 is a sec. plan at CD.
Fig. 4 is a sec. plan at EF.:
f
In Fig. 1, a is the gas reservoir or receiver an are the nipples & ttt are the
Bunsen tubes immediately over the nipples. c, is the mixing chamber & j is the
insulating material between the upper and lower parts of burner,
...
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:
TI
First. A group of gas nipples drawing their supply from a common reservoir
in combination with a similar group of Bunsen tubes.
0

page_text: Second. A Bunsen burner constructed as afore-described having the upper part
insulated against the passage of heat from the upper to the lower part of the
burner.
Third. A combination as set forth in the description and in the accompanying
drawings