Improvements in and relating to the Setting of Boilers and the like.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to the Setting of Boilers and the like.
I, WILLIAM POULTON, of Hillingdon, Reading, in the County of Berks, Manu-
facturer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to the setting of boilers and has for its object
to obviate the defects in the setting due to expansion of the boiler.
In the use of the ordinary blocks for boiler setting and the like the arched or
curved blocks that are mounted at the top of the downtake or other flue at the
back end and occasionally in certain types of boilers, also at the front end of the
boiler, are occasionally broken transversely by reason of the strain induced
in them as a consequence of the expansion of the boiler in working; while the
brick walls upon which the blocks rest are often also badly strained. My
invention is designed to remedy this defect, and it consists in constructing the
arched or curved blocks of the boiler setting that are situated at the top of the
before mentioned flues or also upon the sides of the boiler so that the edge or
extremities of the blocks next the boiler may move to an extent corresponding
to the expansion and thereby avoid the strain that usually results in the destruction
of the blocks.
In carrying the invention into effect I provide a block of arched or curved or
other suitable shape having each of its edges rounded, the one for the purpose
of line contact with the sides and ends of the boiler in accordance with the well
known Poulton" system of boiler setting, while the other is preferably also
rounded for the purpose of permitting the block when mounted in position to
slightly move or pivot upor its end. For the purpose the brick work surrounding
the blocks thus provided is so constructed as to allow of a cavity within which
this necessary movement of the blocks can take place, and for the purpose of
preventing any dust or dirt from passing into this cavity a T or other shaped
cover plate is mounted between the extreme outer and upper edge of the blocks
and the top surface of the brickwork. This cover plate would reach along the
end or ends of the boiler and is preferably loose, but, of course, may be secured
to the brickwork. Instead of employing a cover plate the blocks may be provided
with overlapping edges, which, while permitting the necessary movement of the
block, will prevent dust or dirt from passing into the cavity behind it. Or.
instead, the brickwork may be caused to overhang or extend beyond the mouth of
the cavity for the same purpose.
It will be understood that the invention is not limited to. the actual form of
the blocks other than the formation necessary for permitting the movement
required according to the invention.
1
1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
25, Cross Street, Manchester, Agents.

page_text: Improvements in and relating to the Setting of Boilers and the like.
I, WILLIAM POULTON, of Hillingdon, Reading, in the County of Berks, Manu-
facturer, 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:
11
This invention has reference to the setting of boilers and has for its object
to obviate the defects in the setting due to expansion of the boiler.
In the use of the ordinary blocks for boiler setting and the like the arched or
curved blocks that are mounted at the top of the downtake or other flue at the
back end, and, occasionally, in certain types of boilers, also at the front end
of the boiler, are occasionally broken by reason of the strain induced
in them as a consequence of the expansion of the boiler in working; while the
brick walls upon which the blocks rest are often also badly strained. My
invention is designed to remedy this defect, and it consists in constructing the
arched or curved blocks of the boiler setting that are situated at the top of the
before mentioned flues or also upon the sides of the boiler so that the edge or
extremities of the blocks next the boiler may move to an extent corresponding
to the expansion and contraction thereby avoiding the strain that usually results
in the formation of cracks and openings, or the destruction of the blocks.
In the accompanying sheet of drawings illustrating the invention:
Figure 1 is a perspective view of one form of my improved block, while
Figure 2 is a sectional elevation of the block fitted to the end of the boiler.
Figure is a sectional elevation of a modified form of block in position upon
the brickwork of a boiler, the block being provided with an overhanging edge
for the purpose hereinafter described, while,
Figure 4 is a similar view of a block with the brickwork arranged in a different
manner.
In carrying the invention into effect as illustrated in Figures 1 and 2, I provide
a block of arched or curved or other suitable shape having preferably each of
its edges b, c, rounded, the one 6 for the purpose of line contact with the sides and
ends of the boiler in accordance with the well known "Poulton" system of boiler
setting, while the other c is preferably also rounded for the purpose of permitting
the block when mounted in position to slightly move or pivot upon its end. For
this purpose the brickwork surrounding the blocks thus provided is so constructed
as to allow of a cavity within which this necessary movement of the blocks can
take place. For preventing any dust or dirt from passing into this cavity a
T or other shaped cover plate d is mounted between the extreme outer and
upper edge of the blocks and the top surface of the brickwork. This cover plate d
may extend along the end or ends of the boiler and is preferably loose, but it
may if desired be secured to the brickwork.
Instead of employing a cover plate the blocks may be provided with overlapping
edges e, as illustrated in Figure 3 which, while permitting the necessary move-
ment of the block a, will prevent dust or dirt from passing into the cavity behind
it. Or, instead, the brickwork may be caused to overhang or extend beyond the
mouth of the cavity for the same purpose, as shewn in Figure 4.
It will be understood that the invention is not limited to the actual form of
the blocks other than the formation necessary for permitting the movement
required according to the invention.
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. In blocks for boiler and the like setting, constructing and arranging the

page_text: blocks with rounded edges where such edges make contact with the sides or ends
of the boiler and with the brickwork thereof, for the purpose of taking up the
expansion and contraction of the boiler substantially as hereinbefore described
and as illustrated in the accompanying drawings.
2.In boiler and the like settings, providing a space between the outer surfaces
of the fire brick blocks or setting bricks, and the inner wall or surfaces of the
encasing or surrounding brickwork or covering, substantially as and for the
purposes herein before described.
3. In blocks for boiler and the like setting as claimed in the First Claim, the
provision of means for preventing dust or dirt entering the cavity underneath the
blocks, substantially as hereinbefore described and as illustrated in the accom-
panying drawings.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
25, Cross Street, Manchester, Agents.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
25, Cross Street, Manchester, Agents.