Improved Device in connection with Acetylene Burners for Preventing the formation of Soot.
Year: 1898

page_text: Date of Application, 12th Jan., 1898-Accepted, 12th Feb., 1898
COMPLETE SPECIFICATION,
Improved Device in connection with Acetylene Burners for
Preventing the formation of Soot.
I, ERNST HEINRICII JULIUS SCHULKE, of No. 94, Leipzigerstrasse, Berlin,
Engineer,, do hereby declare the nature of my said 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 relates to a device which is applied to acetylene burners for pre-
venting the formation of soot. Hitherto, the great disadvantage in connection
with acetylene burners has been that at low gas pressure, the flame formed soot
at the outlet so that particles of soot accumulated there, whereby the action of the
burner was impaired and the burner was eventually rendered altogether useless.
Now the object of this invention is to avoid this drawback by providing above
the outlet of the acetylene burner a disc or plate which is provided with an opening
corresponding to the outlet of the burner.
This disc or plate acts in such manner that the out-going stream of gas is set
into flame only at the opening in the disc or plate i.e. above the same, whereas in
the space between the opening of the burner and the guard-plate or recessed disc,
an ignition or formation of flame does not take place, in consequence of which
particles of soot cannot accumulate at the outlet of the burner and an obstruction
in the narrow passage of the burner is impossible.
By the arrangement of the cut out guard-plate or recessed disc, an increase of
the supply of air is also attained in consequence of the stronger draught in such
manner that the acetylene gas is completely consumed and even at low gas pressure
the formation of soot is entirely avoided. In the accompanying drawing, such a
device is shown by way of example.
Fig. 1 is a longitudinal section of the upper part of a burner which is provided
with the guard-plate or recessed disc.
Fig. 2 is a plan view, and
Fig. 3 is a perspective view of the guard-plate and sleeve for attaching it to
the burner tube.
The burner tube a is enclosed by a sleeve 6 having an arm 61 on which the
guard-plate or cap c is provided.
This guard-plate or cap consists of a disc or plate c having an opening c¹ which
is arranged just above the outlet of the burner and corresponds therewith.
The construction, shape and securing means of the guard-plate or cap may
undergo any suitable alteration without departing from the nature of this inven-
tion. The burner tube may of course also be modified to any desired form and
construction.
The guard-plate or cap may not only be applied to burners which have one
opening at the top, as shown in the drawing, but also to burners having slots and
one or more holes at the top.
On applying the guard-plate or cap to burners having only one hole at the
top the recess or opening of the plate or disc should preferably be round whereas

page_text: for burners having slots or several holes at the top the shape of the recess or opening
of the guard-plate should perferably by that of a slot.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
Improved device in connection with acetylene burners for avoiding the formation
of soot, consisting of a guard-plate or cap above the burner outlet and provided
with an opening or recess for the emission of the acetylene gas substantially as
described and shown in the drawing.
Dated this 14th day of January 1898.
E. H. J. SCHÜLKE,
Per W. H. Beck,
115, Cannon Street, London, E.C., Agent.