Improvements in Devices for Reversing the Directions of Flow of Gas or Air in Regenerative Gas Furnaces.
Year: 1895

page_text: Date of Application, 10th May, 1895
Complete Specification left, 10th Jan., 1896-Accepted, 15th Feb.,
1896
PROVISIONAL SPECIFICATION.
Improvements in Devices for Reversing the Directions of Flow of
Gas or Air in Regenerative Gas Furnaces.
We, Joux ROPER WRIGHT, of Gowerton, in the County of Glamorgan, Steel
Manufacturer, and WILLIAM VEICH, of Gowerton, aforesaid, Steel Works
Manager, do hereby declare the nature of this iuvention to be as follows:-
Our invention has for its object to provide efficient means for enabling the
directions of flow of the gas or air in regenerative gas furnaces to be reversed as
equired.
According to our invention we employ a valve consisting of a casing covering
the flue-passages and having an inner chamber capable of conuecting the passage
to the chimney with either the flue for waste products from the farmace or the flue
for gas o an to the furnace the said ne chamber being moveable levels and
links or other means of operating it from outside the casing so that it can be moved
to reverse the flues so that the flue which has been carrying the products of
combustion from the furnace to the chimney caries the gas or air to the furnace
and the flue which has been conveying the gas or au to the furnace carries the
products of combustion from the furnace to the chimney. The said inner chamber
When in position to connect either set of flues has its bottom edges embedding in a
lute of sand, water, or other suitable material, or liquid, and is held in a casting, or
fame, which can be protected by brickwork from the action of flame.
Dated this 10th day of May 1895
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.
CUMILLIOT DOITTUATION.
Improvements in Devices for Reversing the Directions of Flow of
Gas or Air in Regenerative Gas Furnaces.
We, JOHN ROPER WRIGHT of Gowerton in the County of Glamorgan, Steel
Manufacturer and WILLIAM VEITCH of Gowerton aforesaid Steel Works
Manago do hereby declaic the nature of this invention and in what manner
the saine is to be performed to be particularly described and ascertained in and
by the following statement:-
Our invention has for its object to provide efficient means for enabling the
directions of flow of the gas or ail, in regenerative gas furnaces to be reversed as
equired.
According to our invention we employ a valve consisting of a casing covering tho
Hue passage and having within at an inner chamber mov cable by levers and links, or
other means of operating it from outside the casing, so that it can be moved to
reverse the flues so that the flue which has been carrying the products of combustion
from the furnace to the chimney carries the gas or air to the furnace and the fine
which has been conveying the gas or air to the furnace callies the products of
combustion from the furnace to the chimney. The said inne chamber, when it

page_text: position to connect either set of flues, lins its bottom edges embedded in a lute of
sand, water or other suitable material or liquid, held in a casting on frame, which
can be protected by brickwork from the action of flame.
In order that our invention, and the mauner in which it may he performed may
be well understood, we will describe, with reference to the accompanying drawing.
a device constructed in accordance therowith.
Figures 1 and 2, are vertical sections at right angles to each other and Figure 3 19
a sectional plau.
B is a casing mounted upon the baseplate G, through which pass the openings C,
leading to the respective regenerators and the furnace and the opening D leading
to the chimney. The inlet E for gas on air, also opens into the said casing B, A is
the inner chamber constituting the valve proper. It is of a size sufficient to cover
the opening D and one or other of the openings C. The base plate C is recessed
for containing a luting material, indicated at into which the edges of the inner
chamber, or valve prope A he received. On the inner chamber of valve
proper A, are fixed the brackets a through which pass the spindles a' on the ends
of which are received the aims h, on squared ended short shafte passing through
bearings in the casing B, the other ends of which have secured to them by squares
on their equivalents, the weighted levers J, connected by the links and attached
to the yoke K, to which movement in either direction can be given by any suitable
means. When in the position shown the flue C at the left hand establishes
communication between the furnace and the chimney, the other flue Cat the right
hand being in communication with the inlet for gas or au. When the yoke K is
operated, the arrangement of levers, shewn cause the inner chamber oi valve
proper A to se aud to move over to similarly put the right hand Ano Cm
communication with the chimney and the left hand flue in communication with the
mlet for gas or an, and so on, alternately. The regenerators are of course in the
ne of the flues C, between the valve and the furnace. bare openings covered by
doors for giving access to the valve when icquned.
A valve thus constructed, gives an opening though it of the full area of the
flues and is not injmiously affected by heat or flame, or its operation impeded by
tar, or soot. In the event of leakage the valve proper need not be removed
but the leakage could be repaired by unskilled persons even when the furnace is m
work.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim 15:-
1. In, or foi, regenerative gas furnaces, a valve consisting of a casing, such as B,
into which the flue passages, and the inlet for gas, or air, and the outlet to the
chimney, open and an inner chamber, provided with means for operating it fiom
outside the said casing, so that it can be adjusted to connect the regenerator flues,
alternately with the chimney, and the inlet for gas, o an, the said casing being
provided with a lute for the reception of the lower edges of the said inner chambers,
substantially as herembefore described.
2. A device for reveising the directions of flow of gas, oi all, in regenerative gas
furnaces, the said device being constructed substantially as herein before described,
and illustrated in the accompanying diawings.
Dated the 10th day of January 1896
JOHNSONS & WILLCOX,
47 Lincoln's Inu Fields, London, W.C., Agents.