Improvements in Burners for Acetylene.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Burners for Acetylene.
I, JOHN GEORGE AULSEBROOK KITCHEN, of 44 Albert Road, Alexandra Park,
Manchester in the County of Lancaster, Mechanician, do hereby declare the
nature of this invention to be as follows:-
This invention refers more particularly to burners for consuming pure acetylene,
or acetylene unmixed with air previous to entering the burner, and the objects of
the improvements are chiefly to prevent the carbon deposit fram choking the
orifice or orifices in the burner, and to provide a simple and inexpensive burner.
In carrying out my invention, to prevent the carbon deposit from choking up
the orifice or orifices in the burner, I form the external termination of each
orifice trumpet-shaped or bell-mouthed by which formation the edge of the flame
at which the deposit occurs is carried some distance away from the orifice.
To provide an inexpensive and efficient burner, I form the nozzle of the burner
from or in the form of a piece of tube having its end turned inwards all round
to produce the contracted bell-mouthed orifice above referred to.
I find that glass tubing of suitable size so formed makes an efficient and
expensive burner. I may sometimes fit it into an india rubber lined socket thus
enabling it to be readily inserted and removed.
I may arrange these burner nozzles in any suitable way to obtain burners of
different illuminating power.
I, JOHN GEORGE AULSEBROOK KITCHEN, of 44 Albert Road, Alexandra Park
Manchester, in the County of Lancaster, Mechanician, do hereby declare the
nature of this invention to be as follows:-
This invention refers more particularly to burners for consuming pure acetylene
or acetylene unmixed with air previous to entering the burner, and the objects of
the improvements are chiefly to prevent the carbon deposit from choking the
orifice or orifices in the burner, and to provide a simple and inexpensive burner.
In carrying out my invention, to prevent the carbon deposit from choking up
the orifice or orifices in the burner, I form the external termination of each
orifice trumpet shaped or bell-mouthed by which formation the edge of the flame
at which the deposit occurs is carried some distance away from the orifice.

page_text: To provide an inexpensive and efficient burner, I preferably form, the nozzle of
the burner from or in the form of a piece of tube having its end turned inwards
all round to produce the contracted-bell mouthed orifice above referred to.
I find that glass tubing of suitable size so formed makes an efficient and
inexpensive burner. I may sometimes fit it into an india rubber lined socket thus
enabling it to be readily inserted and removed.
I may arrange these burner nozzles in any suitable way to obtain burners of
different illuminating powers.
On the sheet of drawings appended hereunto the improved burner is shown in
three modifications.
In the burner shewn by Figure 1 in plan and Figure 2' in 'vertical' section,
the nozzle of the burner consists of a glass tube a the orifice of which is formed by
melting the end by means of a blow pipe and turning it inwards so as to form a
contracted orifice o widening out in a trumpet or bell mouth shape to the top o¹
of the burner. This glass, nozzle is fitted into a metal holder.b provided with an
external or internal thread for screwing it to a gas bracket, and is fixed gas tight
by means of an indiarubber ring c-sprung into an annular groove of the holder.b,
which ring has a smaller internal diameter than the outside diameter of the
nozzle a so that the latter has to be forced into.it.
In the modification shewn by Figure 3 in vertical section, the nozzle, consists of
a glass tube a¹ of small diameter, the end of which after being softened is widened
out to the bellmouthed shape shewn by a suitable mandrel.
In the modification shown by Figure 4, a glass bead d having a bell mouthed
or trumpet shaped perforation is pushed and cemented into a metal holder. e.
Instead of glass porcelain or equivalent smooth fusible substance may be used
for the nozzle."'.
Instead of using glass nozzles fixed in metal holders the burners can be made
entirely of metal with bellmouthed or trumpet shaped orifices.
In consequence of the shape of the nozzles, the gas is not ignited immediately
above the outlet orifice o, but only above the upper edge o¹ and the carbon
dissociated from the flame is prevented by the current of gas from being deposited
inside the bell mouth, but any deposit of carbon can only take place round the
cuter edge o¹ and in small quantity, especially where glass nozzles are used, to
whose smooth surface the carbon does not readily adhere, so that the outflow of
the gas and the size of the flame are not interfered with.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. The manufacture or formation of burners for acetylene with bell mouthed or
trumpet shaped orifices, substantially as herein before described and illustrated
by the drawings.
2. The manufacture or construction of burners for acetylene having nozzles of
glass or its equivalent with bellmouthed or trumpet shaped orifices fixed in metal
sockets or holders substantially as hereinbefore described and illustrated by the
drawings.
3. The several improved constructions of.. burners for acteylene hereinbefore
described with reference to Figures 1 to 4. of the drawings.
41..
Dated this 20th day of August 1897. Ye
D T TIDADTADT
$1.
7
DJ URQUHART,
57, Barton Arcade, Manchester, Consulting Engineer & Patent Agent.