Improvements in Liquid Sealed Valves for Air and Gases.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Liquid Sealed Valves for Air and Gases.
We, JOHN ROBERT HANNAN, of No. 5, Garrett Street, Middlesbrough, in the County
of Yorkshire, Engineer, JOHN HART, of Post Office Buildings, Middlesbrough, in the
County of Yorkshire, Engineer, and JAMES ARTHUR HART, of Post Office Buildings,
Middlesbrough, in the County of Yorkshire, Engineer, do hereby declare the nature
of this invention to be as follows:-
The particular object of this invention is, the direction and regulation of the flow
of either air or gases, or of both, the prevention of loss of gas, by the sealing of the
valves, by means of water or other liquid, and the protection of the valves and valve-
seats from the effects of heat. This invention refers specially to regenerative furnaces,
but it may be used for any other purpose, where applicable.
This invention consists of two rectangular boxes or casings, made of wrought iron
or steel plates and angles, or of any other suitable. material. These boxes or casings
are placed side by side, the box or casing shewn on the left hand in the drawing
(Fig. 1) and marked A, is for recieving the gas through the gas inlet, shewn on its
top side, from the gas producers. In the said box or casing, are two valve seats, and
Centrally, between the two valve
below, are two passages, leading to the furnace.
seats, is a horizontal spindle, square in section for the greater part of its length,
carried in suitable gland boxes attached to the sides of the box or casing, and capable
of being revolved therein. Upon the said horizontal spindle, is secured a valve,
which, by the revolution of the horizontal spindle closes, or opens, either of the
The ends of the bori-
adjacent valve seats, and consequently, passages for the gas.
zontal spindle project through the sides of the box or casing, and upon one end, is
fitted a suitable counterbalance weight, and upon the other end, suitable gearing is
attached, for actuating the valve. On the side of the box or casing, is a suitable
inlet pipe for admitting water, or other liquid, for sealing the valve in its seat, and
The valve, which is of
also, for protecting it, and its seat from the effects of heat.
the flap description, and made of cast iron, or steel, or of any other suitable material,
has a flange or lip around its edges, on both sides, at right angles to its main body.
The water, or other liquid, after leaving the inlet pipe, falls upon the upper side of
the valve, (it will be seen that either side of the valve is the upper side, in its turn)
and is therein retained, by means of the said flanges, or lips, till it is filled, when it
flows over the edges, and falls into the bottom of the box or casing, where, it is again
retained, until it reaches a suitable level, so as to seal the valve and its seat, after
which, it passes off to waste, by means of a suitable pipe, or aperture, for that
purpose. It will be seen, that the valve is protected from the heat, by reason of
its being continually filled on its upper side, with water or other liquid. The valve
has a horizontal slot in the flange on its edge, where it is carried by the horizontal
spindle, so that, on the withdrawal of the cotters or bolts, it may be quickly removed,
and replaced by another valve, when necessary. The box or casing B, shewn on the
right hand, in the drawings, (Fig. 1) is for recieving the waste gas from the furnace,
through the passages below, from whence, it passes through whichever valve seat
happens to be open to the chimney flue. The valve, valve seatings, counterbalance

page_text: weights, gearing for actuating the valve, horizontal spindle, gland boxes, and pipe for
admitting water or other liquid, for sealing and protecting the valve, are all exactly
similar to those in, and upon the box or casing A, the only difference between the
box or casing A, and the box or casing B, is, that the box or casing B, has no inlet
on top, and is open at one end, to the chimney flue. Both the boxes or casings A,
and B, may be lined with firebrick, or other suitable material. To render this inven-
tion more clearly understood, we annex Sheets Nos. 1, 2 and 3 and final.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 (Sheet No. 1) is a sectional elevation (on line C, D, on Sheet No. 2) shewing
one passage closed by the valve, and the other passage open, to recieve gas to the
furnace. On the sides of the boxes or casings A, and B, may be seen the pipes
for the admitting of water, or other liquid, for sealing, and protecting the valves, the
valves, valve seats, passages, counterbalance weights, gearing for actuating the valves,
and the water, or other liquid in position, for sealing the valves, and their seats.
Fig. 2 (Sheet No. 1) is also a sectional elevation (on line E, F, Sheet No. 2)
shewing valve closed to the gas, and the adjacent passage and valve seat open for
waste gas from the furnace to the chimney flue.
Fig. 3 (Sheet No. 2) is general plan of the arrangement, the box or casing B, being
in section (on line G H on Sheet No. 1).
Figure 4 (Sheet No. 3) is a sectional elevation of the flap valve (on line I, J,).
Figure 5 (Sheet No. 3) is a plan view of the flap valve.
a, is the gas inlet, b, b, are pipes for admitting water or other liquid, c, d, are
valves, d¹, d, are horizontal spindles, e, e, are passages for gas to the furnace, f, f,
are passages from the furnace for waste gas to the chimney flue, g, g, are gearing,
for actuating the valves c, and d, h, h, are gland boxes, for the horizontal spindles,
and j, j, are the counterbalance weights, k, k, are covers, for the boxes or casings A,
and B, removable, when necessary, l, l, shew the opening to the chimney flue,
m, is the chimney flue, and n is the spout, or trough, for conveying away the waste
water or other liquid.
The action of the apparatus is as follows:-The gas from the gas producers, enters
the box or casing A, by means of the gas inlet a, it then passes through whichever
valve seat it may be desired, and along the passages to the furnace, the other
valve seating being closed by the valve. The waste gas, on leaving the furnace,
passes along the passages from the furnace and up through the required valve seat,
into the box or casing B, and therefrom to the chimney flue. When it is desired
to reverse the flow of the gas or air, and waste gases the valves c and d are
simultaneously revolved, by means of the actuating gear, from one valve seat to the
other.
Improvements in Liquid Sealed Valves for Air and Gases.
We, JOHN ROBERT Hannan, of No. 5, Garrett Street, Middlesbrough, in the County
of Yorkshire, Engineer, JOHN HART, of Post Office Buildings, Middlesbrough, in the
County of Yorkshire, Engineer, and JAMES ARTHUR HART, of Post Office Buildings,
Middlesbrough, in the County of Yorkshire, Engineer, 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 particular object of this invention is the direction and regulation of the flow

page_text: of either air or gases or of both, the prevention of loss of gas by the sealing of the
valves by means of water or other liquid, and the protection of the valves and valve-
seats from the effects of heat. This invention refers specially to regenerative furnaces,
but it may be used for any other purpose where applicable.
This invention consists of two rectangular boxes or casings made of wrought iron
or steel plates and augles or of any other suitable material. These boxes or casings
are placed side by side; the box or casing shewn on the left-hand in the drawing
Fig. 1 (drawings filed with our Provisional Specification) and marked A, is for
receiving the gas through the gas inlet shewn on its top side, from the gas producers.
In the said box or casing are two valve seats, and below are two passages leading to
opposite ends of the furnace.
Centrally between the two valve seats is a horizontal spindle, square in section for
the greater part of its length, carried in suitable gland boxes attached to the sides of
the box or casing, and capable of being revolved therein. Upon the said horizontal
spindle is secured a valve, which, by the revolution of the horizontal spindle, closes
or opens either of the adjacent valve seats and consequently the passages for the gas.
The ends of the horizontal spindle project through the sides of the box or casing,
and upon one end is fitted a suitable counterbalance weight, and to the other end
suitable gearing is attached for actuating the valve. On the side of the box or casing
is a suitable inlet pipe for admitting water or other liquid for sealing the valve in its
seat, and also for protecting it and its seat from the effects of heat.
The valve which is of the flap description and made of cast iron or steel or of any
other suitable material, has a flange, or lip, around its edges on both sides, at right
angles to its main body. The water or other liquid, after leaving the inlet pipe falls
upon the upper side of the valve, (it will be seen that either side of the valve is the
upper side, in its turn) and is therein retained, by means of the said flanges or lips,
till it is filled, when it flows over the edges and falls into the bottom of the box or
casing, where it is again retained until it reaches a suitable level so as to seal the
valve on its seat, after which it passes off to waste by means of a suitable pipe or
aperture for that purpose. It will be seen that the valve is protected from the heat
by reason of its being continually filled on its upper side with water or other liquid.
The valve has a horizontal slot in the flange on its edge, where it is carried by the
horizontal spindle, so that, on the withdrawal of the cotters or bolts, it may be
quickly removed or replaced by another valve, when necessary. The box or casing B,
shewn on the right hand in the drawings (Fig. 1) is for receiving the waste gas from
the furnace through the passages below, from whence it passes, through whichever
valve seat happens to be open, to the chimney flue.
The valve, valve seatings, counterbalance weights, gearing for actuating the valve,
horizontal spindle, gland boxes, and pipe for admitting water or other liquid for
sealing and protecting the valve, are all exactly similar to those in and upon the
box or casing A, the only difference between the box or casing A and the box or
casing B, is, that the box or casing B has no inlet on top, and is open at one end to
the chimney flue. Both the boxes or casings A and B may be lined with firebrick
or other suitable material. To render this invention more clearly understood
we attach Sheets Nos. 1, 2, and 3 (and final) (all filed with our Provisional
Specification)
Fig. 1 (Sheet No. 1) is a sectional elevation (on line C D on Sheet No. 2) shewing
one passage closed by the valve and the other passage open to receive gas for the
furnace.
On the sides of the boxes or casings A and B may be seen the pipes for admitting
the water or other liquid for sealing and protecting the valves, also the valves, valve
seats, passages, counterbalance weights, gearing for actuating the valves, and the
water, or other liquid, in position for sealing the valves and the seats.

page_text: Fig. 2 (Sheet No. 1) is also a sectional elevation (on line E F on Sheet No. 2)
shewing valve closed to the gas and the adjacent passage and valve seat open for waste
gas from the furnace to the chimney flue.
Fig. 3 (Sheet No. 2) is a general plan of the arrangement, the box or casing B being
in section (on line G H on Sheet No. 1).
Fig. 4 (Sheet No. 3) is a sectional elevation of the flap valve (on line I J).
Fig. 5 (Sheet No. 3) is a plan view of the flap valve.
a is the gas inlet, b, b are the pipes for admitting water or other liquid, c, d, are the
valves, d¹, d' are the horizontal spindles, e, e, are passages for gas to the furnace,
ff, are passages from the furnace for waste gas to the chimney flue, g, g are gearing
for actuating the valves c and d, h, h, are giand boxes for the horizontal spindles,
j,j, are the counterbalance weights, k, k are covers for the boxes or casings A and B,
removable when necessary, l, l, shew the opening to the chimney flue, m is the
chimney flue and n is the spout or trough for conveying away the waste water or other
liquid.
The action of the apparatus is as follows:-The gas from the gas producers enters
the box or casing A by means of the gas inlet a, it then passes through whichever valve
seat it may be desired (the other one being closed by the valve), and along the passage
to the furnace.
The waste gas, on leaving the furnace, travels along the passage from the
furnace and up through the required valve seat into the box or casing B, and
therefrom into the chimney flue. When it is desired to reverse the flow of the gas or
air and waste gases, the valves c and d are simultaneously revolved by means of the
actuating gear g, g, in opposite directions, from one valve seat to the other.
Before the process of "burning out" for flue-cleaning purposes, the valves c and d,
by a simple alteration of the actuating gear g,g are both revolved on to the seat in
the same corresponding ends of the boxes or casings A. and B for as long as may be
desired, and then reversed onto the seats at the opposite ends, so that in both cases
they are quite protected from the destructive heat of the "burning out" process.
In ordinary working the valve c is always on the seat diagonally opposite to that
occupied by the valve d both before and after reversal.
our said
Having now particularly described and ascertained the nature of
invention, and in what manner the same is to be performed, we declare that what
we claim is-
First: The form of flap valve, with flanges or lips all round its edges, on both
sides of its main body and also with horizontal slot in the after edge in which the
horizontal spindle is secured by means of cotters or bolts as described and illustrated
in the accompanying drawings.
Second-The peculiar construction and arrangement and combination of valve
boxes or casings, with valves, valve seats, passages for the gas or air and waste gases,
pipe inlets for the water or other liquid, outlets therefor, and gearing for actuating
the valves, as described and illustrated in the accompanying drawings.
Dated this 2nd day of May 1898
Deted this 2nd-day of May 1898
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicants.