Improvements in Mechanism for Preventing or Removing Incrustation in Steam Boilers.
Year: 1894

page_text: Date of Application, 1st June, 1894
Complete Specification Left, 30th Mar., 1895-Accepted. 4th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Mechanism for Preventing or Removing
Incrustation in Steam Boilers.
We WILLIAM JAMES TRANTER, of Swan Inn, Great Bridge, Engineer, and
OLIVER HOWL, of Tipton Engineering Works, Tipton, Engineer, both in the
County of Stafford, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in mechanism for preventing or removing
incrustation in steam boilers, and more particularly intended for Cornish and
Lancashire boilers, or cylindrical boilers. It consists as follows:-Agreeing with
the interior sectional shape of the shell of the boiler, is arranged a brush or scraper,
which encircles more or less of the surface, and generally a little more than the
lower half. This brush or scraper may be made of any suitable material, such for
instance as having metallic bristles or plates, or chain, or otherwise, so long as it
effects its purpose.
Suitable mechanism is further provided whereby this brush or scraper may be
drawn to and fro alcng the interior of the boiler. Such mechanism may be varied
in detail, but generally it consists-in the case of a Lancashire boiler-of a central
longitudinal rod, or, in some cases two of such rods may be used, which extend to
the exterior of the boiler, so that by such exterior part the interior brush or scraper
may be operated. At the interior end of this rod or rods, is secured a strong
framework of iron, or suitable material, generally somewhat of a three arm shape,
with one of such arms passing centrally down between the two furnace tubes, whilst
the other two similarly extend equilaterally above the said tubes, their respective
ends resting upon the shell of the boiler, by means of terminal rollers or ball
bearings, which may run in guides or otherwise, so as to facilitate its travel along
the said boiler. To this frame is secured the brush or scraper, by means of
suitable links or other connections, and preferably in such a manner, as that
when pushed backwards the brush shall drag, but when drawn forward, it shall
more firmly sweep or scrape forward any impediment in its way. By thus drawing
the brush forward from the rear end of the boiler up to the blow off cock, all
sediment may be from time to time blown through, and thus prevent the
accumulation of sediment which would incrustate upon the bottoin of the boiler.
We may also in conjunction with or separate therefrom apply a similar
contrivance to clean the exterior surface (that is upon the interior of the boiler) of
the longitudinal tubes of the boilers.
As will be readily seen according to the shape or character of the boiler, so the
operative mechanism will require alteration in detail. Also the operating rod or
rods are suitably provided with a stuffing box at their passage through the end
plate of the boiler; such rod or reds being further made in disconnectable lengths
for convenience.
Dated this 31st day of May 1894.
CHARLES T. POWELL,
Applicants' Agent.

page_text: Improvements in Mechanism for Preventing or Removing
Incrustation in Steam Boilers.
We WILLIAM JAMES TRANTER, of Swan Inn, Great Bridge, Engineer, and
OLIVER HOWL, of Tipton Engineering Works, Tipton, Engineer, both in the
County of Stafford, 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 improvements in mechanism for preventing or removing
incrustation in steam boilers, and more particularly intended for Cornish and
Lancashire boilers, or cylindrical boilers. It consists as follows:-Agreeing with
the interior sectional shape of the shell of the boiler, is arranged a brush or
scraper, which encircles more or less of the surface, and generally a little
more than the lower half. This brush or scraper may be made of any suitable
material, such for instance as having metallic bristles or plates, or chain, or
otherwise, so long as it effects its purpose.
Suitable mechanism is further provided whereby this brush or scraper may
be drawn to and fro along the interior of the boiler. Such mechanism may be
varied in detail, but generally it consists-in the case of a Lancashire boiler-
of a central longitudinal rod, or, in some cases two of such rods may be used, which
extend to the exterior of the boiler, so that by such exterior part the interior brush
or scraper may be operated. At the interior end of this rod or rods, is secured a
strong framework of iron or suitable material, generally somewhat of a three arm
shape, with one of such arms passing centrally down between the two furnace
tubes, whilst the other two similarly extend equilaterally above the said tubes, their
respective ends resting upon the shell of the boiler, by means of terminal rollers or
ball bearings, which may run in guides or otherwise, so as to facilitate its travel
along the said boiler. To this frame is secured the brush or scraper, by means of
suitable links or other connections, and preferably in such a manner, as that when
pushed backwards the brush shall drag, but when drawn forward, it shall more
firinly sweep or scrape forward any impediment in its way. By thus drawing the
brush forward from the rear end of the boiler up to the blow off cock, all sediment
may be from time to time blown through, and thus prevent the accumulation of
sediment which would incrustate upon the bottom of the boiler.
We may also in conjunction with or separate therefrom apply a similar
contrivance to clean the exterior surface (that is upon the interior of the boiler) of
the longitudinal tubes of the boilers.
As will be readily seen according to the shape or character of the boiler, so the
operative mechanism will require alteration in detail. Also the operating rod or
rods are suitably provided with a stuffing box at their passage through the end
plate of the boiler; such rod or rods being further made in disconnectable lengths
for convenience.
In order to more particularly describe and explain this our invention, we have
appended hereunto an illustrative sheet of drawings, upon which are figures and
letters of reference, similar letters referring throughout the several views to the
same thing or part.
Fig. 1, is a part transverse section, and part front elevation of this our invention
as applied to a Lancashire boiler.
Fig. 2, is a longitudinal section of our invention as seen within the boiler the
firing tubes of the boiler not being shown.
In carrying our invention into effect we construct a brush or scraper made of
any suitable material, such for instance as having metallic bristles or plates, or

page_text: chain, or india rubber, or otherwise (preferably metallic bristles) as shown on the
accompanying drawing at A, secured and held together by two wrought iron
plates B, B, and bolts or screws C. At the back of the brush or scraper, and
fastened to the back wrought iron plate B, we form two brackets D, D, having
horizontal holes through them at E. We now provide a framework F, F1, F2,
preferably of iron, the extreme ends of which pass through the horizontal holes E.
of brackets D, D. On the bottom of the back leg F of framework, we fix a roller
or pulley G. At the top of the framework we form a boss or enlargement F³, to
which the longitudinal rod, (or tube) H, is secured; this rod being made up of one
or more bars or tubes, made in suitable lengths, and screwed or connected together
in any suitable manner, so as to obtain flush joints and to be easily disconnected..
On the front plate B, of the brush or scraper A, we form and secure a bracket J,.
to carry a roller or pulley K. On the back of the framework F2, we fix a
stop N, N, projecting down and against back plate B, to prevent brush or scraper
swinging back when being drawn forward.
On the boiler front we arrange and fix a packed stuffing box and gland shewn
at L. we also provide a handle M, to be secured to any of these longitudinal rods,.
or tubes for use of the operator or operators.
We will now proceed to describe the action of our said invention.
The brush or scraper A, when pushed backwards shall drag being at liberty to
oscillate at D, D, and riding on roller or pulley G, but when the brush or scraper A,.
is drawn forward it shall more firmly scrape or sweep forward any sediment in its
way (the stops N, N, keeping it up to its work). By thus drawing the brush or
scraper A from the rear end of the boiler, up to the blow off cock, all sediment may
from time to time be blown through, and thus prevent the accumulation of sediment.
which would incrustate upon the bottom of the boiler. The operating of the
rod H, may of course be effected either by hand or power.
Having now particularly described and ascertained the nature of this our said.
invention, and in what manner the same is to be performed, we declare that what.
we claim is :-
1. In mechanism for preventing or removing incrustation in steam boilers, the
employment of a brush such as A, carried upon a suitable frame and operated by
rod such as H, substantially as herein described and shown.
2. The combination in mechanism for preventing or removing incrustation in
steam boilers, with the frame F, F1, F2, of the brush A, carried upon partially
swinging bearings D, D, limited in its movement by stops such as N, N, as set
forth and shown.
3. The combination with the brush A, and its accessory parts, of the rollers G,
and K, substantially as set forth and shown.
4. The general combination and arrangement of the mechanism herein described
and illustrated, constituting these our improvements in mechanism for preventing:
or removing incrustation in steam boilers.
Deted this 20th day of March 1895.
CHARLES T. POWELL,
Applicants' Agent.