Improvements in Water Tube Boilers.
Year: 1896

page_text: Date of Application, 27th Feb., 1896
Complete Specification Left, 27th Nov., 1896-Accepted, 6th Feb., 1897
PROVISIONAL SPECIFICATION.
Improvements in Water Tube Boilers.
I, HUGH MCINTYRE of 7, Walworth Terrace, in the County of the City
of Glasgow, North Britain, Consulting Engineer, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in water tube boilers either for marine
or land use, and has for its object to construct these so as to enable the tubes
to be cleaned while steam is up, and also to enable any tube or tubes to be
renewed without the necessity of taking down any part of the boiler. It has
also for its object to cheapen the manufacture of boilers, and to almost entirely
dispense with the use of stays.
The invention consists of a steam cylinder having a flattened side, which forms
a Lube plate. From this tube plate a series of vertical tubes extend down a
distance equal to that from the tube plate to the roof of the cylinder, so that they
can be readily drawn up into the cylinder and cleaned. These tubes are ordinary
boiler tubes fixed in the usual manner. The lower tube plate forms the top of
a half cylinder which constitutes the lower part or bottom of the boiler, the ends
of both the top and bottom cylinders being bulged to make staying unnecessary
and they may be either made of malleable or cast steel, or other metal.
The boiler is placed on stools to suit the proper distribution of the weight, or in
any other convenient manner, and the furnace is placed underneath the lower
cylinder, the doors of the furnace being on the one side or on the ends, and the
uptake on the one side of the cylinder, and the smoke box on the other, the flames
and heated gases passing up amongst the tubes into the funnel.
Under a modification of my invention I have a similar steam cylinder, in shape
about a half circle, the tube plate forming the bottom being in this case depressed
at the centre and angled up so as to join the cylinders at the sides in such a manner
as to enable the tubes to be angled out at the bottom or lower ends to the right
and left, thus forming two distinct clusters or groups of tubes almost joined at the
top. The lower tube plate forms the top of the lower or bottom cylinders of the
boiler, similar to that as already described with reference to the first arrangement,
but in this case there being two lower cylinders. The furnace is placed underneath
the lower cylinders as before, the furnace doors being arranged on both sides and
ends, or on one or both ends, the flames and gases passing up through and between
the two clusters of tubes and into smoke boxes on each side, and those may be
carried up to the funnel by two or more passages.
With reference to the arrangement as last described we may also provide a
water space by carrying the shell between the top and bottom cylinders on both
sides and a plate between the upper and lower tube plates which not only gives a
greater heating surface, but obviates any danger of fire in the smoke boxes, and
also assists circulation, and stay tubes or flues being fitted to allow the smoke and
gases to pass into the funnel.
It is to be understood that these boilers can be made of auy required length and
can be placed in groups of two or more, end to end or side to side, as may he found
most convenient.
Dated this 26th day of February 1896.
BOTTOMLEY & LIDDLE,
154, St. Vincent. Street, Glasgow, Applicant's Agents.

page_text: UNTUKIN SI MOTT TATION,
Improvements in Water Tube Bollers.
1, Hucu Mc'INTYRE of 7, Walworth Terrace, in the County of the City
of Glasgow, North Britain, Consulting 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:-
My invention relates to improvements in water tube boilers either for marine or
land use, and has for its object to construct these so as to enable the tubes to be
cleaned while steams is up, and also to enable nuy inbe or tubes to be renewed
without the necessity of taking down any part of the boiler. It has also for its
object to cheapen the manufacture of boilers, and to almost entirely dispense with
the use of stays.
In order that my invention may be properly understood and readily carried into
effect lave appended two sheets of drawings on the several figures of which
corresponding parts are marked with the same letters of reference.
Figure is a side view of a vertical tube boiler fired from one end underneath
the lower cylinder.
Figure 2 is an end view of the same.
Figure 3 is an end view of a similar type of boiler fired from one side.
Figure 4 is an end view of a similar type of boiler with a flue inserted in the
lower cylinder and fired in the flue from one end.
Figure is a side view of the same.
Figure 6 is an end view of a similar type to Figures 4 and 5 drawn.on an
enlarged scale.
Figure 7 is an end view of a similar type of boiler provided with two flues.
Figure 8 is an end view of boiler with double cluster of tubes fired underneath
the cylinder for each side with uptake at each side.
Figure 9 is an enl view of boiler with tube clusters at right angles to each other
and the upper cylinder flattened at tube plate and fired from one end, the flame
going back by the inner half of tube nad returning by outer half to uptake.
Figure 10 is an elevation of a haystack type of boiler the top being rather more
than a half sphere, the bottom side of it consisting of a tube plate depressed at
centre to give the tubes an angle of about 80 degrees, the pans being a circle and
in section half-circle. The tires are placed underneath the lower cylinders all
round and the smoke box and uptakes outside.
Figure 11 is a plan of the same showing four fires and four water spaces with
smoke box and uptakes.
The invention consists of a steam cylinder A having a flattened side B which
forms a tube plate. From this tube plate B a series of vertical tubes C extend
down a distance equal to that from the tube plate B to the roof of the cylinder, so
that they can be readily drawn up into the cylinder A and renewed or cleaned.
These tubes Care ordinary boiler tubes fixed in the usual manner. The lower tube
plate D forms the top of a half cylinder which constitutes the lower part or
bottom of the boiler, the ends E of both the top and bottom cylinders being bulged
to make staying unnecessary, and they may be either made of malleable or cast
steel, or other metal.
The boiler is placed on stools to suit the proper distribution of the weight, or in
any other convenient manner, and the furnace F is placed underneath the lower
cylinder A' the doors G of the furnace being on the one side or on the ends, and
the uptake I on the one side of the cylinder, and the smoke box I on the other, the
flames and heated gases passing up amongst the tubes C into the funnel J all as
shown more particularly in Figures 1 to 7 inclusive.
With reference to the arrangement as described with reference to Figure 7 we

page_text: may also provide a water space K by carrying the shell L between the top and
bottom cylinders A and A' on both sides and a plate M between the upper and
lower tube plates B and D which not only gives a greater heating surface, but
obviates any danger of fire in the smoke boxes, and also assists circulation. This
water space K is closed by plugs when boiler is under steam. The tube plates B
and D are pierced with small holes to allow of proper circulation. Stay tubes or
flues N are provided to allow the tube to he cleaned while under steam and assist
circulation.
Under a modification of my invention I have a similar steam cylinder A in shape
about a half circle, the tube plate B forming the bottom being in this case depressed
at the centre and having flanges O so as to join the cylinders at the sides in such a
manner as to enable the tubes C to be angled out at the bottom or lower ends to
the right and left, thus forming two distinct clusters or groups of tubes almost.
joined at the top as shown more particularly in Figures 8 and 9. The lower tube
plate D forms the top of the lower or bottom cylinders of the boiler, similar to that
as already described with reference to the first arrangement, but in this case there
being two lower cylinders. The furnace F is placed underneath the lower
cylinders A' as before, the furnace doors G being arranged on both sides and ends
or on one or both ends the flames and gases passing up through and between the
two clusters of tubes C and into smoke boxes I on each side, and those may be
carried up to the funnel J by two or more passages.
With reference to Figure 11 it will be observed there are four fires F and four-
water spaces G with smoke box I and uptake H.
It is to be understood that these boilers can be made of any required length and
can be placed in groups of two or more end to end or side to side, as may be found
most convenient.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
Water tube boilers constructed substantially as and for the purposes herein before.
described and illustrated on the accompanying sheets of drawings.
Dated this 25th day of November 1896.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Patent Agents.