Improvements in Hydrocarbon Vaporizers and Burners.
Year: 1893

page_text: Date of Application, 2nd May, 1893-Accepted, 17th June, 1893
COMPLETE SPECIFICATION.
Improvements in Hydrocarbon Vaporizers and Burners.
JOSEPH HENRY MATTHEWS of No. 45, South Market Street in the City of
Canton, County of Stark, and State of Ohio, United States of America,
Metallurgist, 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:―
My invention relates to improvements in hydrocarbon vaporizers and burners,
and particularly to a class of burners adapted to burn the vapor under high
pressure, as in the operation of assaying, and general melting of precious or other
metals.
With this object in view, my invention consists in providing a hydrocarbon
vaporizer and burner having removable portions by which the size and character of
the fire or flame may be determined, to adapt the burner to the size of the crucible
to be used, and to provide means to control and deflect the sub-jet through an
aperture provided therefor into the burners, to light and relight the vapor.
Figure 1 of the accompanying drawings is a side elevation of a hydrocarbon
vaporizer and burner, illustrating my invention.
Figure 2 is a vertical section, and
Figure 3 is a perspective view, showing the vaporizer and burner and two reducers,
which are removed from the burner.
Similar letters of reference indicate corresponding parts in all of the figures of the
drawings.
A represents the frame or body of the burner, which may be made of any suitable
material, preferably of brass, said body having a supporting base B, having thereon
a rib D, and vertical portions E, E', that serve to support the mixing chamber F,
and open burner G.
At the side of the vertical portion E, is provided an outwardly projected sleeve
or coupler H, in which is formed the vaporizing chamber a, having supply pipe I
secured to the outer end portion, below which, and integral with the vertical
portion E, are provided inwardly curved wings b, by which the flame of the sub-jet
is deflected or impinged to or upon the vaporizing chamber a.
The burner G is of the form shown, having an enlarged cylinder portion d con-
nected to the mixing chamber by the off-set or shoulder e, through which is provided
an aperture-f, as shown. On the outside of the burner, over and above the
aperture f, and integral with the burner, is provided on outwardly projected wing
portion J, the end portions of which are bent down to form a hood over the
vaporizer a and the supply pipe I.
The wing or hood portion serves the double purpose of impinging the flame of
the sub-jet about the vaporizer chamber, and deflecting the upper portion of the
flame of the sub-jet through the aperture into the burner, the object of which is to
light or relight the vapor, if the flame goes out, because of high pressure of vapor,
or imperfect atomization of the hydrocarbon.
This is a matter of the utmost importance, as it assures a continuous operation of
the burner, without the constant presence of the operator, and further, the burner
in the furnace under the crucible is not always accessible.
In operation, the vapor passes from the chamber a, down the tube h, to the
tube A, through which it flows to the jet and sub-jet c, and from the jet into the
mixing chamber F, thence to the burner G ; m are plugs which close the unused
end portions of the tube hh'. Owing to the great pressure under which the burner
is commonly used, it has been found necessary to provide a packing about the pin
valves n; to accomplish this, a thread is cut about the end of each downwardly

page_text: projected stem o, on which is fitted a cap gland p, by which the packing is compact
about the stem of the pin valves n.
To reduce the size and capacity of the burner, reducers, as K, K¹, are provided,
having mixing chambers F1 F2, burners G1 G2; apertures ff, and shoulders e¹, e
These reducers are adapted to rest in the mixing chamber F and burner G, the
apertures coinciding as shown in Fig. 2.
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:
1. The combination in a hydrocarbon atomizer and burner, of the vaporizer, and
tubes to convey the vapor to the sub-jet and mixing chamber, the deflecting hood by
which the sub-jet is impinged on the vaporizer, pin valves and packing boxes or
glands, the mixing chamber F having at its upper end portion an outwardly
projecting flange or shoulder e, the vertical cylinder portion d, the deflecting hood J,
and aperture, through which the subject may pass into the burner, substantially
as described, and for the purpose set forth.
2. The combination with the atomizer, jet l, and sub-jet c, of the mixing chamber
and burner provided with the deflector J and aperture f, by which the flame of the
sub-jet may pass into the burner, substantially as described, and for the purpose set
forth.
3. The combination with the burner G, of one or more reducers, as K and K',
having apertures f¹, f² to coincide with a similar aperture in the burner G, through
which the flame of the sub-jet may pass to the inside of the burner, substantially as
described, and for the purpose set forth.
4. In a hydrocarbon burner, the combination of the supply pipe and vaporizer,
the mixing chamber having at its upper end portion a burner formed by the
projected shoulder e and vertical cylinder d, and the outwardly and downwardly
projected hood J, and aperture f, by which the sub-jet flame is held about the
vaporizer and deflected into the burner, substantially as described, and for the
purpose set forth.
Dated this and of Nov 1902