IMPROVEMENTS IN ROTARY PUDDLING FURNACES
Year: 1874

page_text: LETTERS PATENT to Ephraim Allcock Jones and John Allcock Jones,
both of Middlesbrough, in the County of York, for the Invention of
"IMPROVEMENTS IN ROTARY PUDDLING FURNACES.”
PROVISIONAL SPECIFICATION left by the said Ephraim Allcock Jones
and John Allcock Jones at the Office of the Commissioners of
Patents, with their Petition, on the 1st December 1874.
We, EPHRAIM ALLCOCK JONES and JOHN ALLCOCK JONES, both of
Middlesbrough, in the County of York, do hereby declare the nature
of our said Invention for "IMPROVEMENTS IN ROTARY PUDDLING Furnaces," to
be as follows :—

page_text: by various modes or contrivances, one mode being by means of valves
or cocks attached to the outer casing, and communicating with the
water space when water is required in the latter. A hose or other
conductor of water is attached to the nozzles of the said valves or cocks,
the furnace being stationary for the time being, which being then
opened the water passes through them into the water space.
Another method is by means of scoops or bent pipes attached at
intervals round the outer casing, so that on the rotation of the furnace
the open ends or mouths of these scoops or pipes will successively dip
into water contained in a tank underneath. Inside these scoops or
pipes or ducts are valves opening inwards to the water space,
and so
operated by weighted levers or other suitable devices that they are
caused to open only when the scoop is near to or has attained its
highest point in its rotary movement, and to shut after the water
taken up by the scoop has passed them into the water space. Or 1
in lieu of a tank water may be supplied to the scoops or pipes through
a valve or cock arranged externally to the apparatus.
In some cases a coil of pipes or an annular space or duct may be
formed round the outside of the revolving furnace, one end of the said
coil communicating with the water space, whilst its outer or open end
is formed in the shape of a scoop for receiving the water in a similar
manner to that already described.
Another plan for the admission of water to the water space is by
means of buckets arranged at intervals around and attached to the
outside of the outer casing. In the bottoms of these buckets are spring
valves opening inwards to the water space, and mounted on spindles
provided at their outer ends with rollers or wheels. Arranged externally
to and vertically over the furnace is a water valve or cock fitted to the
end of a water supply pipe, and furnished with a pendent triangular
projecting ring or surface. The spindle of this water valve or cock is
fitted with a lever, at the end of which is a weight which tends normally
by its gravity to fall, and thereby close the said valve or cock. To
the outer casing, close against and corresponding in number to the
buckets, are attached projecting lugs or tappets, which on the rotation
of the furnace strike successively against the weight on the end of the
lever of the water valve or cock, and the weight mounting the said lugs
or tappets causes the water valve or cock to be opened, which allows the
water to flow from the supply pipe into the buckets. At the same.time

page_text: the rollers or wheels at the outer ends of the spindles of the bucket or
spring valves successively-strike and roll over the under side of the
triangular projecting ring, thereby depressing and so opening the said
valves successively and admitting the water to the space between the
two casings. On passing each projecting lug the weight on the end
of the lever drops into its normal position and closes the water valve or
cock, thereby preventing any further flow of water therefrom, at the
same time the roller on the spindle of the bucket valve has left the
surface of the triangular projection, and the valve is then closed by its
spring and prevents any escape of water from the water space.
Secondly. In effecting the egress of the water from the water spaco
of the rotary furnace by means of pipes, channels, or ducts, one or more
of which are coiled round the outside of the outer casing and com-
municate at one end with the water space. Or if preferred they may
be coiled in the water space, one end passing through the outer casing.
By means of these coils of pipes no water can escape from the water
space except by evaporation, overflow, leakage, or steam pressure.
Thirdly. In forming the rings which are secured round the ends of
the furnace (and which are divided into two or more segments) with
recesses on their outer faces respectively, which recesses fit over corre-
sponding projections on the outer faces of the rings, against which the
furnace rings revolve, and serve to maintain a tight joint, and to prevent
the waste of cinder and iron thereat. Also in connecting the water
pipes (which are cast in the bodies of the rings) at their external ends
outside the furnace with the water space between the casings by means
of branch pipes or connecting pieces.
Fourthly. In constructing the cast iron or steel end of a single cased
rotary furnace in two or more pieces or segments which are respectively
attached to the circular flanged end of the furnace by bolts, and to each
other by internal or external flanges and bolts. By this division of the
end into a number of pieces the breakage and hindrance to the working
of the apparatus, which frequently takes place when the end is in one
piece, owing to the action of contraction and expansion, is considerably
obviated, and if a breakage of one piece occurs it does not cause the
whole end to be wasted, as would be the case if the end were in one
piece.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Ephraim Allcock Jones and John Allcock Jones
in the Great Seal Patent Office on the 28th May 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EPHRAIM
ALLCOCK JONES and JOHN ALLCOCK JONES, both of Middlesborough, in
the County of York, send greeting.
3
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of December, in the year
of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto us, the said Ephraim Allcock Jones and
John Allcock Jones, Her special license that we, the said Ephraim
Allcock Jones and John Allcock Jones, our executors, administrators,
and assigns, or such others as we, the said Ephraim Allcock Jones
and John Allcock Jones, our executors, administrators, or assigns,
should at any time agree with and no others, from time to time and
at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United King-
dom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "IMPROVEMENTS IN ROTARY PUDDLING FURNACES,”
upon the condition (amongst others) that we, the said Ephraim Allcock
Jones and John Allcock Jones, our executors or administrators, by an
instrument in writing under our hands and seals, or under the hand and
seal of one of us, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that we, the said Ephraim Allcock Jones and
John Allcock Jones, do hereby declare the nature of our said Invention,
and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, reference
being had to the accompanying Drawings, and to the letters and figures
marked thereon, that is to say :—
Our Invention relating to improvements in rotary puddling furnaces
First. In admitting water intermittently to the water chamber or

page_text: of these scoops or pipes will successively dip into water contained in a
tank E underneath, and thus receive a supply therefrom. The scoops
or pipes D are each provided in their interior with a valve 6 opening
. inwards to the water space C, and mounted on a spindle c which is
operated by a weighted lever d pivotted to the valve seat, or by other
suitable devices arranged in such a manner as to cause the valves to
open only when the scoop or pipe is near to or has attained its highest
point in its rotary movement, and to shut after the water taken up by
the scoop has passed them into the water space. Or in lieu of employing
a tank water may be supplied to the scoops or pipes through a valve
or cock arranged externally to the apparatus.
Figure 2 illustrates a modification of this part of our Invention. In
this arrangement a coil of pipes F or an annular space or duct is formed
round the outside of the rotary furnace, one end d of the coil or duct
communicating with the water space C, whilst its outer or open end e
is formed on or attached to a scoop D for receiving the water from
the tank E in a manner similar to that hercin-before described with
reference to Figure 1.
Another plan for the admission of water to the water space is illus-
trated in Figures 3 and 4 of our Drawings. This modification consists
in the employment of buckets D' which are arranged at intervals around
and attached to the outside of the outer casing A, and are each provided
with a spring valve 6 opening inwards to the water space C, and
mounted on a spindle c¹ carrying at its outer end a roller or wheel ƒ.
Arranged externally to and vertically over the furnace is a water valve
or cock which is fitted to the end of a water supply pipe h, and
furnished with.a pendent projecting frame or surface G. On the spindle
of the water valve or cock there is mounted a lever i having a
weight which tends normally by its gravity to fall, and thereby close
the valve or cock g. To the outer casing A, in proximity and corre- a
sponding in number to the buckets, there are attached projecting lugs
or tappets H which on the rotation of the furnace strike successively
against the weight on the end of the lever i of the water valve or
cock g, and cause such weight to mount or traverse along the lugs or
tappets, and thereby open the water valve or cock g so as to allow the
water to flow from the supply pipe into the buckets D¹. At the same
time the rollers or wheels fat tlic outer ends of the valve spindles c¹·
successively strike and roll over the under side of the projecting frame G,

page_text: thereby depressing and so opening the valves b₁' in succession and
admitting the water to the space C between the two casings A, B.
On passing each projecting lug or tappet H the weight on the end
of the lever i drops into its normal position and closes the water valve
or cock g, thereby preventing any further flow of water therefrom, at
the same time the roller or wheelf on the spindle c' of the bucket
valve leaves the surface of the projecting frame G, and the valve is
then closed under the action of a spring with which it is provided so as
to prevent any escape of water from the water space C. Or in lieu
of employing a spring the valves b' in the buckets D¹ may be composed,
as shewn in Figure 4, of leather, india-rubber, or other elastic or flexible
material of such a nature as to admit of the valve being opened by the
pressure of the water without the intervention of the tappet and closed
by the action of the column of water on the rotation of the furnace
forcing the leather, india-rubber, or other material against the opening,
and thereby preventing the escape of the water.
The second part of our Invention, which is illustrated by Figure 5
of our Drawings, consists in effecting the egress of the water from the
water space C of the rotary furnace by means of pipes, channels, or
ducts, one of which is shewn at I, but any suitable number of which
may be employed, such pipe or pipes, which are open at the end to the
atmosphere, and in communication at the opposite end m with the water
space C, being coiled either round the exterior of the outer casing A,
as shewn in our Drawings, or in the water space O, one end in the
latter case, passing through the outer casing A. By means of this
arrangement no water can escape from the water space except by
evaporation, overflow, leakage, or steam pressure.
Figure 6 is a longitudinal section, and Figure 7 is an end sectional
clevation of a furnace with the improvements which constitute the third
part of our Invention applied thereto. This part of our Invention
relates to an improved mode of forming the rings which are secured
round the ends of the rotary furnace so as to obtain a more effective
joint, and it is applicable both to double cased furnaces, as shewn in
Figures 6 and 7, and to furnaces constructed with a single casing.
K, K, are the rings, which may be constructed in two or more segments,
and are secured one at each end to the outer casing A in any convenient
manner, but we prefer to attach them thereto by means of keys n, n,
which pass through slotted lugs o, o, provided on the casing A, and

page_text: enter an annular groove formed in the respective ring K so as to firmly
maintain the ring K in contact with the casing A of the furnace when
the keys n, n, are tightened by the aid of wedges p, p, driven in between
them and the internal sides of the slotted lugs o, o. Each of the rings K
is according to our Invention formed with an annular recess q which
fits over a corresponding annular flange or projection provided on the
fixed ring L which is formed on or attached to the stationary portion
of the furnace, and against which the respective furnace ring K
revolves.
In Figure 6 of my Drawings one only, of the rings L, videlicet that
applied to the left-hand end of the furnace, is shewn; a similar ring is
however intended to be fitted at the opposite end, but the ring and
the stationary portion of the furnace at that end are represented as
removed for the purpose of indicating more clearly. the shape of the
ring K.
By means of the arrangement herein-before described a tight junction
of the rotary barrel with the stationary portions of the furnace is ensured,
and the waste of cinder and iron at the parts where the joints occur is
consequently prevented.
The fourth part of our Invention, which is illustrated in Figures
8, 9, 10, and 11, consists in constructing the cast iron or steel end
of a single cased rotary furnace in two or more pieces or segments,
which are attached to the circular flanged end' of the furnace by bolts,
and to each other by internal or external flanges and bolts. M is the
furnace end composed of a number of segments 8, 8, (shewn on an
enlarged scale in back and end elevation in the detail views, Figures
10 and 11), which segments are provided on their contiguous edges
with lugs or projections t, t, having holes formed in them through
which pass bolts u, u, for securing the segments together. The whole
of the segments 8, 8; constituting the end M are attached to the
flange of the casing A forming the body of the furnace by means
of bolts w passing through holes formed in the flange v and the
segments 8, 8. The juncture of the rotary barrel constructed according
to this part of our Invention with the stationary portions of the furnace
may be effected by means of rings formed with projections and recesses
in the manner herein-before described with reference to Figures 6 and 7.
In Figure 8.we have shown a ring K which may be attached to the
segments 8, 8, in any convenient manner, and which has formed in it

page_text: an annular groove or recess q for the reception of an annular flange
on the fixed ring of the stationary portion of the furnace, as herein-
before described with reference to Figures 6 and 7 of our Drawings.
By this division of the end into a number of pieces the breakage and
hindrance to the working of the apparatus, which frequently takes
place when the end is in one. piece, owing to the action of contraction
and expansion, is considerably obviated, and if a breakage of one
segment occurs another segment may be substituted therefor without
the necessity for renewing the whole end, as would be the case if the
end were in one piece.
Having now described and particularly ascertained the nature of our
said Invention, and the manner in which the same is or may be used or
carried into effect, we would observe in conclusion that what we consider
to be novel and original, and therefore claim as the Invention secured to
us by the herein-before in part recited Letters Patent is,―
First. The application and use to and with a rotary puddling
furnace of scoops or bent pipes for supplying water to the water
chamber of such furnace, substantially as herein-before described and
illustrated by our Drawings.
Second. The combination with the scoops or bent pipes of valves,
tubular coils, or annular ducts for admitting or delivering the water
taken up or received by such scoops or bent pipes into the water
chamber of the furnace, substantially as herein-before described and
illustrated by our Drawings.
Third. The application and use to and with a rotary puddling furnace
of buckets or their equivalents for supplying water to the water chamber
of such furnace, in combination with cocks or valves operated auto-
matically, substantially in the manner herein-before described and illus-
trated by our Drawings.
Fourth. The employment of tubular coils, annular channels, or ducts
for effecting the egress of the water from the water chamber of a rotary
puddling furnace, substantially as herein-before described and illustrated
by our Drawings.
Fifth. Effecting the junction of the revolving barrel of a rotary
puddling furnace with the stationary portion or portions of such furnace
by means of rings having corresponding projections and recesses engaging

page_text: or fitting the one witli or over the other, substantially as herein-before
described and illustrated by our Drawings.
Sixth. Constructing the end of a single cased rotary puddling furnaco
in segments connected together and secured to the body of the furnace,
substantially as and for the purpose herein-before described, and as
illustrated by our Drawings.
In witness whereof, we, the said Ephraim Allcock Jones and John
Allcock Jones, have to this our Specification set our hands and
scals, the Twenty-fifth day of May, One thousand eight hundred
and seventy-five.