Year: 1886

page_text: Date of Application, 17th Sept., 1886.
Complete Left, 16th June, 1887.
Complete Accepted, 19th July, 1887.
1, JOHN TURTLE of Welling in the County of Kent, Nurseryman do hereby declare
the nature of this invention to be as follows:-
This invention relates to that class of hot water boiler which is formed of a number
of hollow transverse vertical sections which are set together side by side.
According to my invention I make a boiler of this kind in the form of a terminal
ended saddle boiler. Each section is composed of two hollow side pieces connected
by a hollow top and by a hollow water passage at a distance below the top which
serves to divide the upper flue from the lower. On both sides of the boiler each
section has projections standing out from it at top and bottom. Through the front
and back faces of these projections holes are formed through which the hollow water
space of one section communicates with the hollow water spaces of the sections on
either side of it.
India rubber rings are placed between the sections around the holes to make a water
tight joint these rings may be partly sunk into recesses in one of the sections. The
several sections are drawn together by bolts passing from the front to the back
section.
The fire bars are as in other boilers made hollow and pass from the bottom of the
front section to a water chamber which passes across the bottom of the boiler at any
desired distance from the front and into which the return pipe opens.
At the back of the fire one of the sections is so made as to form a furnace bridge.
The heated gases from the fire pass over the top of this bridge into the lower flue of
the rear part of the boiler. At the back the end section is formed to direct the heated
gases upwards into the upper flue-they pass back along this flue to the front and
from thence to a chimney or they may be led back over the top or along the sides as
may be desired.

page_text: The side portions of each section are made narrower on the inner side than on the
outer in this way the sides of the flue are made corrugated and great heating surface
is thereby obtained.
The water space of each section which divides the upper from the lower flue I also
make to taper downwards so as to form hollow spaces in between the sections at the
top of the lower flue for the heated gases from the fire to play into thereby forming a
much greater heating surface over the fire way and giving a quicker circulation.
Dated this 17th day of September 1886.
CARPMAEL & Co.,
Agents for the Applicant.
1
1, JOHN TURTLE of Welling in the County of Kent, Nurseryman, 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 :-
This invention relates to that class of hot water boiler which is formed of a number
of hollow transverse vertical sections which are set together side by side.
According to my invention I make a boiler of this kind in the form of a terminal
ended saddle boiler. Each section is composed of two hollow side pieces connected
by a hollow top by a hollow water passage at a distance below the top which serves to
divide the upper flue from the lower. On both sides of the boiler each section has
projections standing out from it at top and bottom. Through the front and back faces
of these projections holes are formed through which the hollow water space of one
section communicates with the hollow water spaces of the sections on either side
of it,
India rubber rings are placed between the sections around the holes to make a water
tight joint these rings may be partly sunk into recesses in one of the sections.
The several sections are drawn together by bolts passing from the front to the back
section.

page_text: The fire bars are as in other boilers made hollow and pass from the bottom of the
front section to a water chamber which passes across the bottom of the boiler at any
desired distance from the front and into which the return pipe opens.
At the back of the fire one of the sections is so made as to form a furnace
bridge.
The heated gases from the fire pass over the top of this bridge into the lower flue
of the rear part of the boiler. At the back the end section is formed to direct the
heated gases upwards into the upper flue-they pass back along this flue to the front and
from thence to a chimney or they may be led back over the top or along the sides as
may be desired.
The side portions of each section are made narrower on the inner side than on the
outer in this way the sides of the fire place or chamber are made corrugated and
great heating surface is thereby obtained.
The water space of each section which divides the upper from the lower flue or fire
place I also make to taper downwards so as to form hollow spaces in between the
sections at the top of the lower flue for the heated gases from the fire to play into
thereby forming a much greater heating surface over the fire way and giving a quicker
circulation.
The drawings hereunto annexed show various views of a hot water boiler formed as
above described.
Figure 1 is a front end view-Figure 2 a side view, Figure 3 a back end view and
Figure 4 a longitudinal vertical section of the boiler. Figures 5 are an elevation,
vertical section taken lengthwise of the boiler and horizontal section of one of the
castings of which the greater part of the boiler is made up.
Figure 6 is a vertical section of the same taken crosswise of the boiler.
A A are the sections of which the greater part of the boiler is made up. B is the
front section. C the section by which a bridge is formed at the back of the fire.
CC are the two sections on either side of it. D is the back section. E are the
bolts by which the front and back sections B and D are drawn together so as to clamp
the other sections between them.
F are the hollow fire bars passing from the bottom of the front section to a water
chamber G which is placed below the bottom of the central portion of the section C.
The return pipe of the hot water system opens into one end of this chamber G.
The cooled water entering the chamber G passes from it through the hollow fire
bars to the hollow bottom of the front section B and from there to the bottom of all
the other sections and rising through the sections passes away from all of them at
the top through the exit or flow pipe H.
The several sections of which the boiler is composed are as shown by Figure 4
formed in such manner that not only is the space or flue in which the fire is situated
covered over with a hollow water space as in other boilers heretofore similarly built up
of segments but in addition are formed with a return flue which is similarly covered
over with a water space.
In Figure 4 the heated gases from the fire on the fire bars are shown to pass
through the opening C² in the section C which forms the bridge and after passing to
the back of the boiler they are by reason of the way in which the back section Ď is
shewn to be formed made to rise up into the upper flue I and they pass back along
this flue to the front of the boiler and there by the way in which the front section B
is formed they are made to rise and may be conveyed away to a chimney or along both
sides of the boiler but preferably I lead them back as shewn by the drawing over the
top of the boiler and so to a chimney.
To allow of this being done conveniently each of the sections is at its two sides
made higher than at its centre and an iron plate K is made to rest on these sides and
to cover over the top of the space left above the centre of the segment.
In each of the sections CC which are on either side of the section C the water
spaces which cover over the top of the lower flue or fire chamber are formed so as
not to descend into the flue or chamber to the same extent as in the sections A so as

page_text: to leave room for the hot gases from the fire to pass through the opening C² in the
section C.
LL are fire doors hinged to the front section B and M is a door or slide by which
the front end of the upper flue I is closed-this admits of the upper flue being
readily cleaned. A similar door N is also provided to allow of the top flue being
readily cleaned.
For small boilers it is unnecessary to provide any bridge at the back of the fire.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. A hot water boiler made up of a number of hollow transverse vertical sections
set together side by side and formed with a lower flue or fire chamber and upper flue
substantially as hereinbefore described.
2. A hot water boiler formed substantially as herein before described and shewn in
the drawing annexed.
3. In hot water boilers made up of a number of hollow transverse vertical sections
set together side by side making the sides and top of the sections to taper inwards
so as to form corrugated sides and top to the fire chamber or flue substantially as
described.
1
101 1
Ր T 100M
CARPMAEL & Co.,
Agents for the Applicant.