Improvements in and connected with Furnaces for Glass Manufacture and other purposes.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in and connected with Furnaces for Glass Manufacture
and other purposes.
I, CALEB KILNER, of Conisborough, in the County of York, Glass Bottle Manu-
facturer, do hereby declare the nature of my said invention to be as follows:—
Although my invention is applicable to various kinds of furnaces, it is more
particularly applicable to a tank furnace, such as is employed in the manufacture
of glass, and as the principle of my invention will be the same in whatever kind
of furnace it is used, a description of it as applied to a glass melting tank furnace,
of the "Siemens regenerative" type will suffice.
In such a furnace a certain number of working holes are frequently arranged
at one side or at one end of the tank and a similar number of working holes are
arranged in the opposite side or end of the same tank, and although such an
arrangement is convenient under ordinary conditions of working, there are times
when an abnormal quantity of gas is passing through the furnace, or when the
wind is blowing in certain directions, when great inconvenience is experienced
by the workmen through the heated air and gases flowing out of the furnace
through the working holes, and the object of my invention is to obviate this
defect.
I carry out my invention in the following manner.
I convey a low pressure blast of air from a fan or blower through suitable pipes
or culverts to a stand pipe fixed in a convenient position, outside the furnace,
near each working hole; at or near the top of the said stand pipe I provide a
blast valve or cock and above it a swivelling bend fitted with a nozzle, so that each
workman can, by opening the valve, cause a blast of air to be directed into the
opening of the working holes of sufficient strength or volume to drive back the
escaping gases.
This blast of air may likewise be employed when the furnace is working too
hot, for reducing the temperature near the working hole so as to bring the metal
into the required condition for working.
As a modification of the arrangement herein described I sometimes employ
steam jets for inducing currents of air into the working holes and by leading the
steam pipes through the heated walls of the furnace the steam may be dried and
superheated.
Dnted this 21st day of March 1800
R. HEBER RADFORD.
Agent for the Applicant.

page_text: Improvements in and connected with Furnaces for Glass Manufacture
and other purposes.
I, CALEB KILNER, of Conisborough, in the County of York, Glass Bottle Manu-
facturer, 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:-
Although my invention is applicable to various kinds of furnaces, it is more
particularly applicable to a tank furnace, such as is employed in the manufacture
of glass, and as the principle of my invention will be the same in whatever kind
of furnace it is used, a description of it as applied to a glass melting tank furnace
of the "Siemens regenerative" type will suffice.
In such a furnace a certain number of working holes are frequently arranged
at one side or at one end of the tank and a similar number of working holes are
arranged in the opposite side or end of the same tank, and although such an
arrangement is convenient under ordinary conditions of working, there are times
when an abnormal quantity of gas is passing through the furnace, or when the
wind is blowing in certain directions, when great inconvenience is experienced
by the workmen through the heated air and gases flowing out of the furnace
through the working holes, and the object of my invention is to obviate this
defect.
My invention will be better understood on reference to the accompanying
sheet of drawings which illustrate one of the means of carrying out my invention
and in which,
Fig. 1 is a front elevation of one of the working holes of a glass furnace.
Fig. 2 being a section of the same.
The same letters refer to similar parts in both views.
I carry out my invention in the following manner.
I convey a low pressure blast of air from a fan or blower through suitable
pipes or culverts, a, to a stand pipe, b, fixed in a convenient position, outside
the furnace, near each working hole, c; at or near the top of the said pipe I
provide a blast valve or cock, d, and above it a swivelling bend, e, fitted with
a nozzle, f, so that each workman can, by opening the valve, cause a blast of
air to be directed into the opening of the working holes of sufficient strength
and volume to drive back the escaping gases.
This blast of air may likewise be employed, when the furnace is working too
hot, for reducing the temperature near the working hole so as to bring the
metal, g, into the required condition for working.
As a modification of the arrangement herein described I sometimes employ
steam jets for inducing currents of air into the working holes, and by leading the
steam pipes through the heated walls of the furnace the steam may be dried and
superheated.
I wish it to be understood that I do not confine myself to the particular
arrangement or combination of parts and appliances herein described and illus-
trated for carrying my invention into effect, as it is obvious that my invention
can be carried into effect in a variety of ways.
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.) In a furnace for the manufacture of glass and the like purposes, the employ-
ment of a blast of air directed into the opening of the working hole of sufficient

page_text: strength and volume, to drive back the gases which under certain conditions
escape from the interior of the furnace, in the manner and for the purposes sub-
stantially as herein described and illustrated.
(2.) In a furnace for the manufacture of glass and the like purposes, the
employment of a steam jet, for inducing currents of air into the opening of the
working hole, of sufficient strength and volume to drive back the gases which
under certain conditions escape from the interior of the furnace, in the manner
and for the purposes substantially as herein described and illustrated.
(3.) In a furnace for the manufacture of glass and the like purposes, reducing
the temperature of the furnace near the working hole, so as to bring the metal
into the required condition for working by causing a blast of air to be directed
into the furnace, in the manner similar to that described in Claims, 1 and 2.
Dated this 25th September 1899.
R. HEBER RADFORD.
Agent for the Applicant.