Improvements in Burners for Limelights applicable to Blowpipes.
Year: 1891

page_text: Date of Application, 28th Oct., 1891
Complete Specification Left, 28th July, 1892-Accepted, 3rd Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in Burners for Limelights applicable to Blowpipes.
I ALBERT EDGAR KNOWLES of 123 Lichfield Road Aston Birmingham in
the County of Warwick Chemical Engineer do hereby declare the nature of my
Baid invention to be as follows:-
:-
My invention has for its object improvements in burners for limelights
applicable to blow pipes and is intended to supersede both the mixed jet "and
blow through" burners and by which I obtain the advantages of the mixed jet
burners when using only one gas under pressure and also I obtain a more perfect
mixing of the gases when one or both are under pressure.
In carrying my invention into effect I so construct my burner that a fine jet of
one of the gases impinges upon the centre of the stream of the other gas after
which it is conveyed by a single pipe to the jet. In the case of limelights I
preferably use the oxygen gas under pressure through the fine jet at the rear of the
apparatus so as to impinge upon the stream of hydrogen coal or other gas used
which may or may not be pressure, the jet of oxygen generally producing the
necessary pressure for the other gas. My apparatus may be mounted or supported
in any suitable manner as for instance in the case of limelights by a tube & set
screw fastened to a supporting rod on the tray. Any suitable or convenient form
of lime holder and adjustment may be clamped to the single supply tube.
I may control the supply of oxygen by a thumb screw plug which enters and
plugs up the aperture through which the gas passes by which means a more
perfect adjustment of the amount of gas which is allowed to pass through is
obtained which is most important in this class of work the hydrogen or other gas
may be regulated by an ordinary tap or cock and in addition to the above special
arrangement for controlling the oxygen I may use an ordinary tap which would
be useful in the case of quick dissolving views but in many cases would not require
to be used.
The connections may be made for flexible or rubber tubes or may be varied to
suit the various requirements of the case such as in the case of high pressure.
In order to further secure the thorough mixing of the gases in some cases I use
glass, wool, wire gauge or other material in the connecting tube or in a special
mixing chamber of the usual form between the jet and the injection arrangement.
Dated this 27th day of October 1891.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Burners for Limelights applicable to Blowpipes.
I, ALBERT EDGAR KNOWLES of 123 Lichfield Road Aston Birmingham in
the County of Warwick Chemical 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 :-
My invention has for its object improvements in burners for limelights applicable
to blow pipes and is intended to supersede both the mixed jet and blow through
burners and by which I obtain the advantages of the mixed jet burners when using
Pain I

page_text: only one gas under pressure, and also I obtain a more perfect mixing of the gases
when one or both are under pressure.
In carrying my invention into effect I so construct my burner that a fine jet of
one of the gases impinges upon the centre of the stream of the other gas after
which it is conveyed by a single pipe to the jet. In the case of limelights I
preferably use the oxygen gas under pressure through the fine jet at the rear of the
apparatus so as to impinge upon the stream of hydrogen coal or other gas used
which may or may not be pressure, the jet of oxygen generally producing the
necessary pressure for the other gas. My apparatus may be mounted or supported
in any suitable manner as for instance in the case of limelights by a tube and set
screw fastened to a supporting rod on the tray and any suitable or convenient
form of lime holder and adjustment may be clamped to the single supply tube.
I may control the supply of oxygen by a thumb screw plug which enters and
plugs up the aperture through which the gas passes by which means a more perfect
adjustment of the amount of gas which is allowed to pass through is obtained
which is most important in this class of work the hydrogen or other gas may be
regulated by an ordinary stop or cock and in addition to the above special
arrangement for controlling the oxygen. I may use an ordinary tap which
would be useful in the case of quick dissolving views but in many cases would not
require to be used.
The connections may be made for flexible or rubber tubes or may be
varied to suit the various requirements of the case such as in the case of high
pressure.
In order to further secure the thorough mixing of the gases in some cases I use
glass wool, wire gauze or other material in the connecting tube or in a
special mixing chamber of the usual form between the jet and the injection
arrangement.
In order that my invention may be clearly understood and more easily carried
into practice I have appended hereunto a sheet of drawings upon which I have
fully illustrated the nature of my said improvements.
Figure 1, is a longitudinal sectional elevation through my apparatus.
In carrying my invention into effect I so construct my burner that a fine jet of
one of the gases entering at A impinges upon the centre of the stream of the
other gas entering at B after which it is conveyed by a single pipe D to the jet.
In the case of limelights I preferably use the oxygen gas A under pressure
through the fine jet a at the rear of the apparatus so as to impinge upon the
stream d¹ of hydrogen coal or other gas used which may or may not be pressure,
the jet a' of oxygen generally producing the necessary pressure for the other gas.
My apparatus may be mounted or supported in any suitable manner as for instance
in the case of limelights by a tube and set screw fastened to a supporting rod on
the tray. Any suitable or convenient form of lime holder & adjustment may be
clamped to the single supply tube.
I may control the supply of the oxygen A by the thumb screw plug a³ which
enters and plugs up the aperture a' through which the gas passes by which means a
more perfect adjustment of the amount of gas which is allowed to pass through is
obtained which is most important in this class of work. The hydrogen or other
gas B may be regulated by an ordinary tap or cock 6' and in addition to the above
special arrangement for controlling the oxygen I may use an ordinary tap a³
which is useful in the case of quick dissolving views but in many cases would not
be required.
The connections may be made for flexible or rubber tubes or may be varied to
suit the various requirements of the case such as in the case of high pressure.
In order to further secure the thorough mixing of the gases in some cases I may
use glass, wool, wire, gauze, or other material in the connecting tube say at d² or in
a special mixing chamber of the usual form between the jet and the injection
arrangement.

page_text: Having now particularly described & 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 :-
The injection apparatus connected to a jet for producing high temperatures
required in such work as limelight substantially as and for the purpose herein set
forth and shown upon the accompanying drawings.
Dated this 27th day of July 1892.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.