Improvements in Apparatus for Boiling Esparto Grass and the like.
Year: 1891

page_text: Date of Application, 2nd June, 1891
Complete Specification Left, 19th Mar., 1892-Accepted, 23rd Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Boiling Esparto Grass and the like.
I GEORGE WILLIAM HAWKSLEY of the Brightside Boiler Works, Sheffield in
the County of York, Manufacturer, do hereby declare the nature of my said inven-
tion to be as follows:-
This invention relates to improvements upon the apparatus described in the
Specification of my Patent No. 4976, March 31, 1890, the chief feature being the
removal of the circulator or cylinder of steam tubes from the inside to the outside of
the boiler, and so constructed that it may be fixed to existing boilers, as well as to
new ones.
The boiler may be of the usual type, having a perforated false bottom, underneath
which a pipe is carried to the circulator, and also to the discharge. At the top of
the boiler, inside there is a perforated pipe or sprinkler, which passes outside and
is connected with the top of the circulator, which consists of a vertical cylinder
closed at the top and bottom by tube plates which have open end tubes fixed therein.
Steam is admitted into the body of the generator causing a strong circulation of
boiling water through the pipes and consequently through the body of the boiler.
If preferred the arrangement may be reversed so far as regards the application
of the steam (or other heating medium) by using the interior of the pipes or coil of
piping for the passage of the heat, and the outside of tubes or interior of casing for
the water.
Dated the 2nd day of June 1891.
KUBI. F. DRUKI,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Boiling Esparto Grass and the like.
I, GEORGE WILLIAM HAWKSLEY of the Brightside Boiler Works, Sheffield
in the County of York, Manufacturer 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 apparatus for boiling esparto grass
and the like and refers to the apparatus described in the Specification of my
previous Patent No. 4976 dated March 31, 1890, the chief feature of my present
invention being the removal of the circulator or cylinder of steam tubes from the
inside to the outside of the boiler, and being so constructed that it may be fixed to
any existing boiler as well as to new ones.
I bave illustrated my present invention in the accompanying sheet of drawings
which represents a sectional elevation of a boiler made upon this principle.
The boiler may be of the usual type having a perforated false bottom 1, under-
neath which a pipe 2, is carried to the circulator 3, and also to the discharge 4.
At the top of the boiler inside, there is a perforated ring shaped pipe or sprinkler 5,
which passes to the outside, and is connected with the top of the circulator 3, by
pipe 5.
The circulator consists of a vertical cylinder or casing 6, closed at the top and
the bottom by the tube plates 7 and 8, which have open end tubes 9, fixed
therein. Steam is admitted into the body or casing of the circulator through the
nozzle 10, which heats the pipes 9, and causes a strong circulation of water through

page_text: the said pipes upwards, and consequently through the sprinkler 5, and the body of
the boiler.
Condensation escapes by the exit 11, and suitable manholes 12 and 13, are
provided for supplying material and for cleaning purposes, and the boiler is con-
veniently supported on legs 14.
If preferred the arrangement of the application of steam or other heating medium
may be reversed by using the interior of the pipes 9, (or the substitute of a coil of
pipe) for the passage of the steam or the like, and the inside of the casing 6, to
hold the water.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same may be performed or carried into practice,
I declare that what I claim is :-
1. A boiler for esparto grass and the like having an outside circulator. or heater
constructed and arranged for the purpose specified and substantially as hereinbefore
described and shown.
2. The combination with a boiler of any suitable type for boiling esparto grass
and the like, of an outside tubular circulator, and an internal sprinkler constructed
substantially as hereinbefore described and illustrated.
Dated the 16th day of March 1892.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.