Improvements connected with Fuel Economisers for Heating Water and similar Apparatus, Flues, and Chimneys.
Year: 1894

page_text: Date of Application, 31st July, 1894
Complete Specification Left, 30th Apr., 1895-Accepted, 8th June, 1895
PROVISIONAL SPECIFICATION.
Improvements connected with Fuel Economisers for Heating Water
and similar Apparatus, Flues, and Chimneys.
I THOMAS WRIGLEY, of Waterside House, Todmorden in the County of
York, Mill Manager do hereby declare the nature of this invention to be as
follows:-
This invention relates chiefly to fuel economisers used in connection with steam
boilers and to similar apparatus and consists in the arrangement or combination
therewith of means or apparatus for mechanically and continuously removing the
soot scraped off the pipes of the economiser or similar apparatus and collected in
the bottom of the soot chamber. This cleaning out of the chamber has hitherto
been done by hand at intervals or when the working was stopped, entailing
inconvenient labour and leading at times to corrosion of the lower tubes of the
economiser when neglected, so that the soot accumulates and covers said pipes.
The object of my invention is to prevent this and to save labour.
For this purpose I make the soot chamber under the economiser with sides
sloping inwards and place into the bottom of the same a trough containing a worm
conveyor. The trough and worm are extended through the end wall of the
economiser chamber and beyond the same over a pit, and the trough is formed
with an outlet shoot at the bottom to discharge the soot into the pit. The worm
is rotated in any convenient manner. The soot dropping into the soot chamber
slides down the sloping sides into the trough and is removed by the worm at
intervals or continuously as may be preferred.
The trough and worm may be extended into the chimney flue and chimney, and
the bottoms of these formed with sloping sides to convey the soot into the trough.
This arrangement may also be used for chimneys and flues not connected to
economisers, for the removal of soot or other substances collecting on the bottom
of the flues or chimneys in a regular or continuous manner, instead of per-
forming this operation at intervals by hand and having to stop working for this
purpose.
T
2004
Improvements connected with Fuel Economisers for Heating Water
and similar Apparatus, Flues, and Chimneys.
I THOMAS WRIGLEY of Waterside House, Todmorden in the County of
York, Mill Manager, do hereby declare the nature of this invention and the
mauner in which the same is to be performed to be particularly described and
ascertained in and by the following statement :-
This invention relates to fuel economisers used in connection with steam boilers
and to similar apparatus, flues and chimneys and consists in the arrangement or

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combination therewith of means or apparatus for mechanically and when desired,
continuously removing the soot scraped off the pipes of the economiser or similar
apparatus and collected in the bottom of the soot chamber or flue or chimney.
This removal of the soot has hitherto been done by hand at intervals when the
working was stopped, entailing inconvenient labour, and leading at times to
corrosion of the lower tubes of the economiser when neglected so that soot
accumulates and covers said tubes. The object of my invention is to prevent this
and to save labour.
On the drawing appended hereunto Fig. 1 shows a longitudinal and Fig. 2 a cross
sectional elevation and Fig. 3 a sectional plan of an economiser with my
improvement applied thereto.
The economiser may be of any kind and its arrangement does not form. part
of my invention. The one shewn on the drawings consists of vertical tubes a with
cross tubes b and c, scrapers d and mechanism for operating the same.
According to my invention 1 form the soot chamber at the bottom of the
economiser with sloping sides ff and arrange in the bottom of the chamber a
trough e fitted with preferably a worm conveyor g. The trough and worm are
extended through the end wall of the economiser chamber and beyond the same
into a pit, in which a soot box is arranged, into which a shoot m discharges the
soot from the conveyor. The conveyor trough is closed at the top outside of the
conveyor chamber and the box is likewise closed and connected air tight to
the shoot m, to prevent air being drawn into the conveyor chamber through the
box and trough. A door n serves for clearing out the soot at times.
The worm g
is rotated by means of bevil wheels and pulley o from the counter-
shaft p which drives the economiser scrapers, and may be rotated at intervals or
continuously as may be required or preferred.
According to local circumstances the arrangement of conveyors may be as shewn
on the drawing, or the longitudinal conveyor may discharge the soot inside or
outside of the soot chamber into another trough and conveyor placed at a right
angle thereto, the latter delivering the soot into a box. In some cases instead of
the longitudinal soot chamber as shewn, a series of soot chambers placed trans-
versely with sloping sides under the economiser may be arranged and a trough
with conveyor placed into the bottom of each chamber, the different conveyors
discharging into a common long soot box, or into a longitudinal conveyor arranged
under their ends. The conveyors may be driven in any suitable manner.
The trough and conveyor may be extended into the chimney flue and chimney
and the bottoms of these formed with sloping sides for conducting the soot into the
trough and the latter and the conveyor extended to deliver the soot into an
external soot-box.
Similar arrangements of sloping bottoms and troughs with conveyors may also
be used for chimneys and flues, not connected to economisers for the removal of
soot or other substances collecting on the bottom of the flues or chimney con-
tinuously or intermittently, instead of performing these operations by hand and
having to stop working for this purpose.
Instead of the conveyor working in a specially formed trough it may work in
the bottom part of the soot chamber.
Obviously instead of worm conveyors any other suitable conveyor may be
used for the purpose of removing the soot out of the soot chamber, flues.or
chinneys.
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.

page_text: 2. The combination with an economiser or similar apparatus of a conveyor or
several conveyors for removing the soot from the soot chamber of said economiser
or apparatus substantially as herein before described.
Dated the 29th day of April 1895.
R. J. URQUHART,
57, Barton Arcade, Manchester, and 5, Clayton Square, Liverpool,
Consulting Engineer and Patent Agent.