Year: 1887

page_text: Date of Application, 7th June, 1887
• Complete Left, 7th Mar., 1888
Complete Accepted, 13th Apr., 1888
I HENRY BURROWS of 162 Herbert Road Plumstead in the County of Kent,
Foreman of Steel Works do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to cheapen the cost of erection and repairs, durability,
simplicity of construction, affording easy access to the parts most likely to get out of
order and secure other advantages.
Also to provide more directly and effectively for the utilisation of the products of
combustion after leaving the melting chamber.
To also arrange the position of the regenerating air chambers immediately under
the bath or melting chambers in such a manner as to protect them from burning away
at their weakest part and to further arrange them so that the heated air shall travel
through them in one direct line thus dispensing with inconvenient angles or turns or
reversing valves.
Moreover the furnace is so constructed as to allow of the regenerating, chamber
being of very large capacity.
The regenerating tubes may be arranged to run the extreme length and width of
the furnace or substantially so into a chamber separating the gas producer and
furnace and surrounding the port between the gas producer and bath.
The tubes in the regenerating chamber are arranged longitudinally thus allowing
the heated air one direct passage as aforesaid.
These tubes are suitably supported by open brickwork, similar tubes being placed
at right angles or otherwise, but preferably by similar tubes at right angles.
Suitable walls may be built in the regenerating chamber for the purpose of
suitably directing and diffusing the products of combustion freely among the
regenerating tubes.
The furnace may be worked with natural draught, or air under compression, or
induced air, but preferably by natural draught.
The air supply is preferably sent into the regenerating tubes at the ends
terminating nearest where the products of combustion are the hottest thus affording
protection at the weakest part of the tubes as aforesaid.

page_text: The air and gas supply may be regulated by suitable valves either before entering
into the regenerating tubes or after passing through them into the chamber separating
the gas producer.
The gas producer is in close proximity to the furnace and provision is made for
supplying with highly heated air from the regenerating tubes or otherwise, or by
steam from a pipe passing through the regenerating tubes.
The valve and air passages are built alongside and between the bottom of the
regenerating chambers and the flue for the waste heat leading to the stack.
Dated the 7th day of June 1887.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicant.

page_text: I HENRY BURROWS of 162 Herbert Road Plumstead in the County of Kent,
Foreman of Steel Works do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
The objects of this invention are to cheapen the cost of erection and repairs obtain
increased durability with greater simplicity of construction to provide means for
affording easy access to the parts most likely to get out of order and secure other
advantages. Also to provide more directly and effectively for the utilisation of the
products of combustion after leaving the melting chamber.
To also arrange the position of the regenerating air chambers immediately under
the bath or melting chambers in such a manner as to protect them from burning away
at their weakest part and to further arrange them so that the heated air shall travel
through them in one direct line thus disponsing with inconvenient angles or turns or
reversing valves.
Moreover the furnace is so constructed as to allow of the regenerating chamber
being of very large capacity.
The regenerating tubes may be arranged to run the extreme length and width of
the furnace or substantially so into a chamber separating the gas producer and furnace
and surrounding the port between the gas producer and bath.
The tubes in the regenerating chamber are arranged longitudinally thus allowing
the beated air one direct passage as aforesaid.
These tubes are suitably supported by open brickwork, similar tubes being
placed at right angles or otherwise, but preferably by similar tubes at right
angles.
Suitable walls may be built in the regenerating chamber for the purpose of
suitably directing and diffusing the products of combustion freely among the
regenerating tubes.
The furnace may be worked with natural draught, or air under compression, or
induced air, but preferably by natural draught.
The air supply is preferably sent into the regenerating tubes at the ends terminating
nearest where the products of combustion are the hottest thus affording protection at
the weakest part of the tubes as aforesaid.
The air and gas supply may be regulated by suitable valves either before entering
into the regenerating tubes or after passing through them into the chamber separating
the gas producer.
The gas producer is in close proximity to the furnace and provision is made for
supplying it with highly heated air from the regenerating tubes or otherwise, or by
steam from a pipe passing through the regenerating tubes.

page_text: The valve and air passages. may be built alongside and between the bottom of the
regenerating chambers and the flue for the waste heat' leading to the stack..
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a longitudinal section of a furnace constructed for carrying out the
invention.
Figure 2.a sectional elevation on the line Y Y of Figure 1 looking towards the right
hand end of said Figure.
Figure 3a sectional plan view on the line X X of Figure 1, the upper portion of
the furnace being removed:
The gas, producing chamber a communicates with the melting chamber b by way of
the opening a¹ and runs almost parallel with it to the melting chamber b.
The products of combustion pass out through the opening c and while in their
hottest state strike and pass between the series of lines of regenerating tubes c¹, c², c³, c
and c into the chamber d which is provided with a wall or division for the purpose
of directing or diffusing the said products of combustion thoroughly through among
and over the outside of the said series of regenerating tubes c¹, c², c³, c' and c for the
purpose of highly heating the air passing through the inside thereof and pass away by
flue or channel d
a
"This heating of the air passing through these tubes is effected as follows:-
The valve è on being opened admits an induced current of air in and along the
chamber into the chamber e and through the series of lines of regenerating
tubes c¹, c, c, c, c, as aforesaid.
The air passes out at the other ends of the aforesaid regenerating tubes into the
chamber and ports or passages f¹.
The valve g is provided for the purpose of admitting air into and through the line
of regenerating tubes e for supplying the gas producer.
Provision is made at g' for connecting the air box and line of tubes with a
forced draught which may be used for the gas producer.
a² is an opening for access to the gas producing chamber a. 61, band. 62 are
openings suitably closable affording means of access to the melting chamber b. h, h, are
supports for the air channels c¹, c², c³, c, c, which for convenience of removal and
-repair are made in sections or divisions.
In the drawings I have shewn the pipes c¹, c³, c³, c, c³ of square cross section but
they may be of other suitable sectional form.
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
In open hearth steel furnaces regenerating air chambers arranged under the melting
chamber so as to allow of the heated air passing therethrough in a direct or substantially
direct manner in combination with means for directing and diffusing the heated
gases thereover substantially as and for the purposes herein before set forth.
Dated the 6th day of March 1888.