Improvements in and connected with Reversing Valves for Regenerative Furnaces.
Year: 1898

page_text: Date of Application, 5th Mar., 1898
Complete Specification Left, 15th Oct., 1898-Accepted, 14th Jan., 1899
PROVISIONAL SPECIFICATION.
Improvements in and connected with Reversing Valves for
Regenerative Furnaces.
We, THOMAS LAUDER, of 14, Chappell Terrace, Parkhead, Draughtsman, and
JAMES Ross, of 38, Chappell Terrace, Parkhead, Steel Works Manager, do hereby
declare the nature of this invention to be as follows:-
:-
This invention, which relates to reversing valves for regenerative furnaces,
consists of a valve constituting a combination of four water-sealed valves-
arranged in two groups with a pair of valves in each group-all the valves being
in the same horizontal plane or level. These valves are of dome configura-
tion provided with an arm or lever rising vertically from the crown and pivoted
to a beam or crosshead, by which each pair is connected. When one valve of
the pair dips into the water to form a liquid seal, the other is raised and offers a
port or passage for the gas as it comes from the main as will be more fully
described.
The two inside valves are connected with one another by means of a junction
pipe, which has a branch on its under side connecting with the chimney flue.
The two outer valves are connected to the source of gas supply, and are each
separated by a partition plate from the adjoining valve which is connected to
the chimney flue.
Each group of the aforesaid pair of valves opens on to a flue leading to the
regenerative furnace, that is to say, there are two flues-one leading to each gas
regenerator, and one pair of valves opens on to one flue, and the other pair of
valves on to the other flue.
Thus a valve connected with the source of gas supply and a valve connected
with the chimney flue open respectively on to one flue leading to a gas regenerator,
and the other similar pair of valves opens on to the other flue, and the valve
moving mechanism is such that-dealing with the pair of valves connected with
the same flue-when the valve connected to the source of gas supply is open,
that connected to the chimney flue is closed, and the position of the valves in the
other group at the same time, is the opposite from this, that is, the valve connected
with chimney flue is open, and that to source of gas supply is closed.
Gas being admitted at the open valves passes along flue leading to gas
regenerator, through regenerator furnace hearth, second regenerator, and into
second flue on which opens the second group of valves, and the valve connected
to chimney flue only being open, the heated gases pass on to the chimney.
The position of the valves being reversed by suitable mechanism, the cycle
of operations is reversed as often as is required.
Dated this 2nd day of March 1898
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow,
Applicants' Patent Agents.

page_text: Improvements in and connected with Reversing valves for
Regenerative Furnaces.
We, THOMAS LAUDER, of 14, Chappell Terrace, Parkhead, Draughtsman, and
JAMES Ross, of 38, Chappell Terrace, Parkhead, Steel Works Manager, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described in and by the following statement:-
Our invention relates to reversing valves for regenerative furnaces.
In order that our invention may be properly understood and readily carried
into effect we have hereunto appended one sheet of drawings, shewing partly
in section and partly in elevation a valve constructed according to our improve-
ments.
The invention consists of a valve constituting a combination of four water-
sealed valves A, A1, A2, A3,--arranged in two groups with a pair of valves A, A¹,
and A2, A3, in each group, one group shewn in elevation and the other in vertical
section, all the valves being in the same horizontal plane or level. These valves
are of dome configuration and provided with an arm or lever B which is sur-
rounded by a sleeve or cylinder C rising vertically from the crown D and pivoted
to a beam or crosshead B¹, or otherwise connected by chain B2 by which each
pair is connected. Each beam or crosshead B¹ is connected one to the other by
a connecting rod attached to a link B³. When one valve A2 of the pair dips
into the water to form a liquid seal, the other A³ is raised and offers a port or
passage E for the gas as it comes from the main F as will be more fully described.
The two inside valves A1 and A2 are connected with one another by means of
a junction pipe G, which has a branch on its underside connecting with the
chimney flue H. The two outer valves are connected to the source of gas supply,
of which there are two, and are each separated by a partition wall or plate I from
the said inner adjoining valves A¹ and A2 which are connected to the chimney
flue Has just explained.
Each group of the aforesaid pair of valves opens on to a flue leading to the
regenerative furnace, that is to say, there are two flues, a flue for each pair of
valves one leading to each gas regenerator, and one pair of valves opens on to
the one flue, and the other pair of valves on to the other flue, not shewn on the
drawings.
Thus the valve A³ connected with the source of gas supply F and the valve A²
connected with the chimney flue H open respectively on to one flue J leading
to a regenerative furnace and the valves A and A¹ of the other similar pair of
valves open on to the flues J1 and H leading to the regenerative furnace and
chimney flue respectively and the valve moving mechanism is such that dealing
with the pair of valves connected with the same flue-when the valve connected
to the source of gas supply is open, that connected to the chimney flue is closed,
and the position of the valves in the other group at the same time, is the opposite
from this, that is, the valve connected with chimney flue is open, and that to source
of gas supply is closed.
Gas being admitted at the open valves passes along flue leading to gas re-
generator, through regenerator furnace hearth, second regenerator, and into second
flue on which opens the second group of valves, and the valve connected to chimney
flue only being open, the heated gases pass on to the chimney.
The position of the valves being reversed by suitable mechanism, the cycle of
operations is reversed as often as is required.

page_text: Having now described the nature of our said invention and in what manner
the same is to be performed, we declare that what we claim is: -
1. Valvular apparatus, consisting of two casings, each being divided by
vertical division plates into two parts the inner parts being connected to one
another and to the chimney flue, while the outer parts are connected to the source
of gas supply, each division being provided with an annular water-space and
an opening in the centre for passage of gases, in combination with suitable valves,
which dip into water when valves are closed, substantially as described and illus-
trated on the accompanying sheet of drawings.
2. The general arrangement and combination of valves, casings, connecting
junction pipe, etc., all substantially as described and illustrated on the accom-
panying sheet of drawings.
3. The covering tube or cylinder which provides for an air space round the
valve arm or spindle and protects it from the heated gases, substantially as
described and illustrated on the accompanying sheet of drawings.
LITIS
Tot day of October 1030.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow,
Applicants' Patent Agents.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow,
Applicants' Patent Agents.