Improved Means for Increasing the Initial Velocity of Bunsen Flames for Heating, Soldering, Brazing, and other Useful Purposes.
Year: 1898

page_text: Date of Application, 23rd May, 1898
Complete Specification Left, 20th Feb., 1899-Accepted, 25th Mar., 1899
PROVISIONAL SPECIFICATION.
Improved Means for Increasing the Initial Velocity of Bunsen Flames
for Heating, Soldering, Brazing, and other Useful Purposes.
We, RICHARD THOMAS GLOVER and JOHN GEORGE GLOVER, of the Firm
Thomas Glover and Co. Ld., 214 to 222, St. John Street, Clerkenwell, London,
Gas Meter Manufacturers, do hereby declare the nature of this invention
to be as follows:-
This invention has for object certain means by which the initial velocity of
a Bunsen flame from a single jet can be increased and thereby rendered more
efficient in its action than at present.
To carry this invention into practice we score, roughen or serrate the surface,
or part of same, of an angled plate or deflector arranged on or over the end of
a Bunsen jet and against which surface the flame impinges whereby the flame
is broken up into fine fan like rays yet in perfect continuity due to the check
imparted to the flame at the point of combustion the flame also burning at an
increased velocity and producing intense heat..
The deflector of this invention, can be part of a tube to be slipped over the nozzle
of the burner jet and fixable by a screw or pin for its proper location, or it may be
provided with a screw adjustment or hinged and be capable of being set at the
desired angle so that it can be shifted and put out of position when the ordinary
Bunsen flame only is required.
The supply of gas to the Bunsen tube can be regulated by a cone or other
valve.
Improved Means for Increasing the Initial Velocity of Bunsen Flames
for Heating, Soldering, Brazing, and other Useful Purposes.
We, RICHARD THOMAS GLOVER and JOHN GEORGE GLOVER, of the Firm
Thomas Glover and Co. Ld., 214 to 222, St. John Street, Clerkenwell, London,
Gas Meter Manufacturers, do hereby declare the nature of this invention
[Price 8d l

page_text: 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 for object, certain means by which the initial velocity of
a Bunsen flame from a single jet can be increased and thereby rendered more
efficient in its action than at present.
To carry this invention into practice, we score, roughen, or serrate the surface
or part of same, of an angled plate or deflector arranged on or over the end of
a Bunsen jet, and against which surface the flame impinges, whereby the flame
is broken up into fine fan like rays, yet in perfect continuity due to the check
imparted to the flame at the point of combustion, the flame also burning at an
increased velocity and producing intense heat.
The deflector of this invention can be part of a tube to be slipped over the nozzle
of the Bunsen jet and fixable by a screw or pin for its proper location, or it may be
provided with a screw adjustment or hinged and be capable of being set at the
desired angle, so that it can be shifted and put out of position when the ordinary
Bunsen flame only is required.
The supply of gas to the Bunsen tube can be regulated by a cone or other
valve.
The invention will be clearly understood by reference to the annexed drawings.
Figure 1 part sectional elevation of a Bunsen burner tube with the invention
applied and set at the desired angle by a set screw of the attachment band.
Figure 2 elevation of a Bunsen burner tube with the invention applied and set
at the desired angle by a side pinch screw jamming the shank between two
arms of the neck band.
Figures 3, 4, 5, 6, and 7 are views of some of the striated, chequered, or uneven
surfaces of the plate against which the flame impinges for the purpose before
explained.
A, gas jet. B, supply pipe. C, regulating valve governable by disc D and
thumb button E. F, rack on gas jet tube for pinion G turnable from outside
the stand H. I, Bunsen tube. J, air inlet in same, said tube J being adjustable
by the rack K and pinion L of the post M and by which the Bunsen tube I
is suspended and rendered adjustable. N, neck band clamped on Bunsen tube I
with arms or lips P, from the longer of which the socket Q of the angled plate R
is pivotted and capable of fixation at the desired angle, its forward portion or
overhang being controlled by a sliding action in the socket Q by the screw pin S,
the head T of which can be turned for the purpose.
The under face of the plate R is recessed in lines, as at Figure 3, coarse diamond
or lozenge shaped, as at Figure 4, or in fine diagonal serrations, as at Figure 5,
or in concentric rings or parts of rings, as at Figure 6, the several scorings
of the face of the plate R being given as examples only, the surface can however
be formed with holes drilled or cast in the face for more aërating the gas flame
by breaking it up, or by thinning it down according to the shape of the plate R
which may be flat, slightly hollow rounded in its width, or have side flanges or
of shape near the forward edge for re-uniting the flame and concentrating its
action in the apex U upon the article being heated thereby.
The apparatus shown at Figure 1 from its portability and the facilities of
adjusting the moving parts make it exceedingly useful to art metal workers
when soldering or brazing has to be effected because the workman requiring the
intense heat can carry the apparatus to the work and apply the heat suddenly
to the article at the exact spot, a circumstance for which an ordinary Bunsen tube
without a flame deflector plate is not applicable.
The plate R is preferably of fire clay or other refractory material, or plumbago
suitably moulded and fired or prepared to resist exteme heat suddenly applied.
The apparatus shown at Figure 2 is made available for ordinary rough usage
for soldering or brazing, such as by engineers tin men and brass fitters, the angle
plate R being of, say, cast iron or other material, the under face of said angled

page_text: plate being roughened in any suitable manner and to any desired pattern as
found convenient.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed we declare that what we
claim is
1. Providing Bunsen flame tubes with a plate having an under roughened
surface and set at an angle over the mouth of the tube for breaking up or thinning
down the flame for aërating purposes and the production thereby of a heat of
greater intensity than is possible in the ordinary way, the plate being arranged
for adjustment substantially as represented and described.
2. The application or employment of a roughened serrated or otherwise
irregular surfaced plate at an angle above the outlet of a Bunsen flame tube
against which surface, the flame has action for re-concentration or for distribu-
tion as specified.
m
Gol 1.
C TN 1
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Richard Thomas Glover and
John George Glover.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Richard Thomas Glover and
John George Glover.