Improvements in Appliances for Heating and Circulating Liquids by Steam.
Year: 1889

page_text: Date of Application, 28th Mar., 1889
Complete Specification Left, 27th Dec.. 1889-Accepted. 1st Feb
1890
PROVISIONAL SPECIFICATION.
Improvements in Appliances for Heating and Circulating Liquids by
Steam.
THOMAS FOULKES SHILLINGTON & JOHN ALEXANDER 'HANNA 'both of Musgrave & Co.
Limited Ann Street Iron Works Belfast, Ironfounders and Engineers do hereby declare
the nature of this invention to be as follows
This invention has for its object the heating and circulating of water or other liquids
by passing a jet of steam directly into the liquid to be heated without causing the
loud noise that is usually produced by the contact of steam with a cold liquid.
According to our invention we make the Steam Jet with a central tube of the size
necessary to pass the amount of steam required.
Near to the end of this tube by which the steam enters we drill a few small holes.
Around the tube and covering these holes and extending lengthwise along the tube for
four to six inches we wrap several folds of fine wire web or of sheet metal of any
suitable description punched with very fine perforations. Outside this wrapping we.
fix a covering tube about one half the length of 'the perforated part anil so closed .at
one end that no steam can pass out except through & between the folds of the
perforated wrapping.
The steam therefore when admitted into the jet enters first the central tube, passes
through the small holes drilled in it, enters the folds of the perforated wrapping and
not being able to escape directly through the same by reason of the covering tube it
passes, lengthwise through its folis until reaching the end of the covering tube it
escapes into the liquid in a very finely divided condition.
The jet so constructed may be placed in the liquid to be heated or in a circulating
pipe connected therewith which we preferably make of taper form widening in the
direction of the current and if it be desired to increase the rapidity of the circulation
we provide the jet with an external bell mouthed ring placed a short distance from it
but encircling it & so placed and of such a form as shall give the steam & water on
leaving the jet a decided impulse in the direction required.
When greater power is required the diameter of the central tube of the jet and
consequently of all the other parts may be increased but instead of this we prefer to
nake the tube longer and of the required capacity and upon it to fix a second.wrapping
and covering 'tube at the end of the first set already.described and also in like manner
'third and so on according to the power required. When this arrangement is.carried
out the quantity of steam admitted into the first set may be small, greater in the
second still more in the third & so on and the covering tube of each set must be so
losed at one end'that steam cannot pass from it into the perforated wrapping.imme-
liately preceding it.
'Having thus described the nature of our invention we wish it to be understood that
ve do not bind ourselves to the precise details as set forth.but generally to the method
ve have described.
Dated this 25.1 1
1 1000
THOS. F.,SHILLINGTON.
JOHN A. HANNA..

page_text: COMPLETE
SPECIFICATION.
Improvements in Appliances for Heating and Circulating Liquids by
Steam.
THOMAS FOULKES SHILLINGTON and JOHN ALEXANDER HANNA both of Mus-
grave & Co. Limited Ann Street Iron Works Belfast, 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 has for its object the heating and circulating of water or other
liquids by passing a jet of steam directly into the liquid to be heated without causing
the loud noise that is usually produced by the contact of steam with a cold
liquid.
In the accompanying Drawings we have illustrated how our said invention may be
conveniently and advantageously carried into practice.
Fig. 1 is a vertical elevation showing the Steam Jet fixed in its position inside
the circulating pipe or case, the latter having its cover removed.
Fig. 2 is a vertical longitudinal section of the same.
Fig. 3 is a longitudinal section of part of the said Steam Jet to an enlarged
scale.
Fig. 4 is a transverse section of same.
Like letters indicate the same parts throughout the Drawings.
According to our Invention we make the jet with a central tube a of the size
necessary to pass the amount of steam required. Near to the end of this tube by
which the steam enters we drill a few small holes b. Around the tube a and covering
the holes and extending lengthwise along the tube for four to six inches varying
according to the diameter of the tube we wrap several folds of fine wire web or of
sheet metal c of any description punched with very fine perforations. Outside this
wrapping we fix a covering tube d about one half the length of the perforated part
and so closed at one end that no steam can pass out except by passing through
and between the folds of the perforated wrapping.
The steam therefore when admitted into the jet enters first the central tube a passes
thence through the small holes & drilled in same enters the folds of the perforated
metal c. and not being able to escape directly through them by reason of the covering
tube dit passes lengthwise through the said folds until reaching the end of the
covering tube it escapes into the liquid to be heated in a very finely divided
condition.
The jet so constructed may be placed in the liquid to be heated or in a circulating
pipe e connected therewith which we make of a taper form, widening in the direction
of the current and having a door on one side conveniently placed for giving access to
the jet.
If it be desired to increase the rapidity of the circulation we provide the jet with
an external bell-mouthed or tapering ring or series of rings f. placed a short distance
from it but encircling it and so placed and of such a form as shall give to the
steam and water on leaving the jet a decided impulse in the direction required.
When greater heating power is necessary, the diameter of the central tube a of the
jet and consequently of all the other parts may be increased but instead of this we
prefer to make the central tube a longer and of the required internal capacity and
upon it fix a second wrapping and covering tube d' at the end of the first already
described and also in like manner a third and so on according to the power
required. In the lower end of the covering tube d' is a socket into which the end
of the perforated wrapping is fitted and held securely any steam which may reach
the said socket escaping through the slits g. A similar socket is provided in the
terminal nuth which screws down on the end of the tube a and firmly binds all
the parts together.

page_text: Having thus fully described our said invention and the manner of performing
the same we wish it to be understood that we claim
First A Steam Jet constructed with central tube, perforated wrapping and covering
tube substantially as and for the purposes set forth.
Second-The combination with the said Steam Jet of a tapering or hell mouthed
ring or rings for the purpose of directing the current of steam and liquid as set
forth.
Third―The combination of the said Steam Jet with a tapering pipe or casing as
described.
Fourth-The construction of a Steam Jet as herein described having two or more
sets of perforated wrappings and covering tubes substantially as and for the purposes
set forth.
Dated this 24th day of December One thousand eight hundred and eighty-nine
THOS. F. SHILLINGTON
JOHN A. HANNA.