Improvements in Oxy-hydrogen Jets for Lime Light, and other Purposes.
Year: 1897

page_text: Date of Application, 5th May., 1897
Complete Specification Left, 30th Oct., 1897-Accepted, 18th Dec., 1897
Improvements in Oxy-hydrogen Jets for Lime Light, and other
Purposes.
I WALTER JOSEPH COLES of 117 East Dulwich Grove in the County of Surrey,
Engineer do hereby declare the nature of this invention to be as follows:-
The object of my invention is so to construct the jet, that it can be used, without
alteration, with the two gases at the same or at different pressures; and also to obtain
a greater illuminating power.
To effect this, the jet, according to my invention is provided with a chamber having
a central circular passage, surrounded by an annular passage, the size of which may
or may not be adjustable. The gas of the higher pressure as it issues from this
annular passage carries with it the other gas as it comes through the central passage,
thence through the mixing chamber along the tube as in the ordinary jet to the
nipple where the combustion takes place.
The action with gases of equal pressures is exactly similar.
The mixing chamber may be dispensed with in some cases.
Improvements in Oxy-hydrogen Jets for Lime Light and other
Purposes.
I, WALTER JOSEPH COLES of 117 East Dulwich Grove in the County of Surrey,
Engineer do hereby declare the nature of my invention for Improvements in oxy
hydrogen jets 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 oxy-hydrogen jets, by means of which
great power of heating, and consequently of light may be obtained, even if one of
the gases is at a very low pressure; the jet being constructed in such a manner that
it may be used, without alteration, with gases of the same, or different pressures and
also that the usual mixing chamber may be dispensed with.
In order that the invention may be more readily understood I have illustrated it
in the accompanying drawing forming a part of this specification, of which the
following is the description.
Fig 1 is a side elevation and Fig 2 is a plan in section.
The same letters indicate the same parts in both figures.
One of the two gases (the one of higher pressure if there is any difference) entering
by passage A and issuing through narrow annular space B at a high velocity induces
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page_text: a more rapid current of gas through the central jet D, the gases mix and pass along
through thence by pipe F to nipple G at which they are ignited.
The passage C may be formed in a separate piece in such a manner that it can be
moved backward or forward thus altering area of annular space B, the movement
being controlled by an eccentric screw E or other suitable means. By this
arrangement the quantity of gas coming in by passage A can be regulated so as to
bear the correct proportion to the gas coming through central jet D.
The mixture of the gases brought about by this arrangement is so perfect that the
usual mixing chamber may be omitted, but if desired this may be inserted at any
point between passage C and the nipple G.
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:
1st The combination of central, jet and passages as herein set forth and described
for oxy hydrogen jets.
2nd The arrangement of adjusting by eccentric screw or other suitable means
together with sliding passage as herein described.
3rd The general combination herein described and shown in the drawings.
4th The combination herein set forth with a mixing chamber as stated.
Dated this 30th day of October 1897.
WALTER JOSEPH COLES.