IMPROVEMENTS IN STEAM AND OTHER BOILERS."
Year: 1868

page_text: LETTERS PATENT to Henry Kinsey, of the Robin Hood Works,
Nottingham, Engineer, for the Invention of "IMPROVEMENTS IN STEAM
AND OTHER BOILERS."
Scaled the 25th May '1869, and dated the 3rd December 1868.

page_text: stays, so that the space between the plates may form a water space of
the boiler, and the fastenings which connect the plates together must be
sufficiently strong to withstand the pressure within the water space. The
ridges of the two plates may be brought into contact, but I prefer that
they should be kept at a short distance from one another by distance
pieces. Various ways may be adopted for making up a boiler with
water spaces so constructed, but I prefer to place the several pairs of
corrugated plates forming the water spaces in a vertical position, spaces
being left between the pairs of plates to form flucs, and the pairs of
plates are by preference so placed together that the ridges of one pair
come opposite to the depressions in the pairs of plates next to it; the
spaces forming the flues are thus of an even width throughout, and so
offer a free passage of an even width throughout for the products of
combustion from the furnace to pass between. The products of com-
bustion may either rise up vertically through these flues, or the flue
spaces may be divided by a horizontal division plates of metal into two
or more flues one above the other, so that the heated products of
combustion from the furnace may be caused to pass horizontally along
one of these flues from one end of the water spaces to the other, and
then return back through another of the a horizontal divisions of the
flue, and back again if desired. The spaces between the top and bottom
of the two plates which form the water spaces are closed, and water is
supplied to the bottom of each water space at one or both of its ends,
whilst steam is similarly carried off from the tops of the water spaces;
no shell or ontside casing is thus required for the boiler. For those
water spaces which come on the outside of a boiler they may be made
up of one corrugated plate and one flat plate, the flat plate being on the
outside. In place of the two plates, which together form the water
spaces, being connected together with the ridge of one plate opposite the
ridge of the other plate, they might be connected together with the
ridges of one plate opposite to the depressions in the other plate. In
place also of the corrugations of one plate being parallel with the
corrugations of the other plate they might be at right angles thereto;
in this case no distinct pieces need be used to keep the plates apart,
but the ridges of the two plates may be rivetted together at the
point where they come into contact with one another.
In place
also of the water spaces being disposed vertically they might be placed
horizontally, and the ends of one water space might be connected

page_text: by elbow pipes or otherwise with the water spaces above or below
them. Boilers for heating water for other purposes may also be
similarly constructed. In that class of boiler where the sides of the
boiler are made double to form a jacket, so that the water in the boiler
may be heated by steam contained within the jacket, I form the inner
side of corrugated metal in order to increase the effective heating surface
of the steam jacket.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Kinsey in the Great Seal Patent Office on
the 3rd June 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME. I, HENRY
KINSEY, of the Robin Hood Works, Nottingham, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of December, in the year
of our Lord One thousand eight hundred and sixty-eight, in the
thirty-second year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Henry Kinsey, Her special
licence that I, the said Henry Kinsey, my executors, administrators, and
assigns, or such others as I, the said Henry Kinsey, my executors,
administrators, and 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 Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
STEAM AND OTHER BOILERS," upon the condition (amongst others) that I, the
said Henry Kinsey, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should par-
ticularly 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 I, the said Henry Kinsey, do hereby declare
the nature of the said Invention, and in what manner the same is to

page_text: be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say:-
In constructing steam boilers I employ corrugated plates of metal
connected together in pairs, the ridges of one corrugated plate being
connected to the ridges of the other corrugated plate by rivets or screw
stays, so that the space between the plates may form a water space of
the boiler, and the fastenings which connect the plates together must
be sufficiently strong to withstand the pressure within the water space.
The ridges of the two plates may be brought into contact, but I prefer
that they should be kept at a short distance from one another by
distance pieces. Various ways may be adopted for making up a boiler
with water spaces so constructed, but I prefer to place the several pairs
of corrugated plates forming the water spaces in a vertical position, spaces
being left between the pairs of plates to form flucs, and the pairs of
plates are by preference so placed together that the ridges of one pair
come opposite to the depressions in the pairs of plates next to it; the
spaces forming the flues are thus nearly of an even width throughout,
and so offer a free passage of an even width throughout for the products
of combustion from the furnace to pass between. The products of
combustion may either rise up vertically through these flues or the flue
spaces may be divided by horizontal division plates of metal into two or
more flues one above the other, so that the heated products of combustion
from the furnace may be caused to pass horizontally along one of these
flues from one end of the water spaces to the other and then return
back through another of the horizontal divisions of the flue, and back
again if desired. The spaces between the top and bottom of the two plates
which form the water spaces are closed and water is supplied to the
bottom of each water space at one or both of its ends whilst steam is
similarly carried off from the tops of the water spaces, no shell or
outside casing is thus required for the boiler. For those water spaces
which come on the outside of a boiler they may be made up of one
corrugated plate and one flat plate, the flat plate being on the outside.
In place of the two plates which together form the water spaces being
connected together with the ridge of one plate opposite the ridge of the
other plate, they might be connected together with the ridges of one
plate opposite to the depressions in the other plate. In place also of the
corrugations of one plate being parallel with the corrugations of the

page_text: other plate they might be at right angles thereto; in this case no
distance pieces need be used to keep the plates apart, but the ridges of
the two plates may be rivetted together at the points where they come
into contact with one another. In place also of the water spaces being
disposed vertically they might be placed horizontally and the ends of
one water space might be connected by elbow pipes or otherwise with
the water spaces above or below them. Boilers for heating water for
other purposes may also be similarly constructed.
The Drawings hereunto annexed show two examples of boilers con-
structed according to my Invention.
In the arrangement of boiler shewn at Figures 1 and 2 there are six
water spaces a, a, each made of a corrugated plate or plates rivetted or
welded up to form a water space. The ridges in the portion of the plate
forming one side of each water space being opposite the ridges in the
portion of the plate forming the opposite side of the water space, and
being secured one to the other at a slight distance apart by means of
distance pieces and rivets or other fastenings, as shew at b, Figure 1;
or in place of each water space being thus made up from one corrugated
plate they might each be made up from two corrugated plates similarly
connected together by distance pieces and rivets or fastenings shown at
c, Figure 1. The top of each water space is closed by a covering
plate being cast on to it, whilst the bottom of each water space has a
tube d cast on to it. Before casting these ends or covers on to the
corrugated water spaces a I first coat the ends of the water spaces with
tin, the end of the water spaces are then introduced into the moulds in
which the ends or covers are to be cast, and the ends or covers are cast
upon them; or in place of this each end of each water space might be
closed by a plate fixed within it by means of welding, or an angle iron
might be rivetted or welded all round the ends of the water spaces, and
covers might be affixed to these angle plates by bolts or rivets, or other
arrangements might be adopted for closing the water spaces at their
ends. The upper ends of the several water spaces are put in connection
one with the other by pipes, as shewn by the Drawing, and from one of
them is led a pipe e by which the steam generated is carried off from the
boiler; or the tops of the water spaces might if preferred be carried
into a steam dome or chamber at the top of the boiler. The feed water
iş by other pipes not shewn in the Drawing led into the pipes cast on to

page_text: the bottom of the corrugated water spaces. The way in which the water
spaces are set up within the boiler furnace, with flues or spaces between
them, is clearly shewn by the Drawing. f, f, are covers fixed by bolts
on to the ends of the pipes cast on to the bottoms of the water spaces;
these covers admit of the interior of these pipes being got at for cleaning.
The interior of the vertical corrugated water spaces is cleaned through
openings in their top covers; these openings are closed over by suitable
smaller covers.
In the arrangement shewn at Figures 3, 4, and 5, in place of the
water spaces of the boiler being set up within a fixed boiler furnace, as
shewn by Figures 1 and 2, the external shell of the boiler is formed of a
water space, the exterior plate of which is in the arrangement shewn
in the Drawing an uncorrugated plate. In place of this the outer plate
of the water space forming the external shell of the boiler might also be
a corrugated plate, and such external shell might be surrounded by a
casing, the space between the casing and corrugated sides of the shell
being filled in with a non-conducting material.
Within the space
enclosed by the water spaces forming this external shell other water
spaces formed of corrugated metal, as above described, and closed at
their ends with covers cast or fixed on to them are placed as shown,
with flues or spaces between them. The lower ends of the several water
spaces are connected to one another by pipes, as shewn, so that each of
the spaces may be supplied with water at its lower end. The water
spaces are similarly connected to one another at their upper ends by
steam pipes, and from one of them is led a pipe by which the steam is
led away from the boiler. d, d, are the fire-bars at the bottom of the
space enclosed by the water spaces a, and e, e, is a horizontal division
plate which divides off the top portion of the flue or spaces between the
water spaces from the lower portions of such flues except at one side of
the boiler, where a space is left through which the products of com-
bustion rise and are led off through a chimney at the opposite side of the
top of the boiler.
I would remark that although in the Drawings hereunto annexed I
have only shewn two arrangements of boilers made up of water spaces
cach composed of corrugated plates connected to one another, as above
described, with sufficient strength to resist the internal pressure, yet I
do not confine myself to these two modes of making up a boiler from

page_text: such water spaces, as other arrangements for making up a boiler from
water spaces so constructed might be adopted.
In witness whereof, I, the said Henry Kinsey, have hereunto set
my hand and seal, this Third day of June, in the year of our Lord
One thousand eight hundred and sixty-nine.
HENRY KINSEY. (L.S.)