in Steam Nozzles or apparatus
Year: 1886

page_text: GEORGE GORDON PICKING and WILLIAM HOPKINS both of 58 Bow Road in the
County of Middlesex Engineers do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in Steam Nozzles, or apparatus employed for
heating or boiling liquids by Steam, and has for its object, destroying the noise made
by the steam entering the liquid to be heated or boiled, and also by creating a constant
circulation of the liquid in the vessel in which it is being heated, the steam is more
readily condensed and taken by the liquid and thus the operation is rendered much
quicker and performed with greater economy.
Where apparatus is at present employed for heating liquor. by steam or where open
steam pipes are used, there is considerable noise occasioned by the steam entering the
liquid required to be heated or boiled, also it is found that great variation of tempera-
ture may exist in the liquid at different parts of the boiling vessel, for instance possibly
near the Steam Inlet Pipe it may be at boiling point and at parts more distant from
the Steam at a much less temperature.
But by the Improvements which form the subject of our Invention we obviate these
difficulties as will be understood from the following description that is to say
We provide a Nozzle of suitable dimensions according to the size of Steam Inlet
this Nozzle is screwed on to or attached in any way to the end of the Steam pipe and
is fitted with an inner cone piece, which piece is provided with one or more holes for
the egress of Steam. From this Cone piece there is a pipe leading up to or above the
surface of the liquor to be heated or boiled for the purpose of admitting air to the
Nozzle during the operations of heating or boiling. The admission of this air destroys
.... 037

page_text: the vacuum in the Nozzle which would otherwise be formed by the steam coming in
contact with the water and by so doing effectually prevents the noise otherwise
occasioned. The air may be allowed to pass freely to the Nozzle by the partial vacuum
formed or it may be driven in by a Jet of steam or other method. Also the Nozzle
being made with an Internal Cone piece for the purpose described causes (when the
stean is turned on) a complete circulation of the liquid in the boiling vessel so that
every part in turn is presented to the incoming steam and as a result an equal
temperature is maintained.
This apparatus is also very useful when attached to the exhaust pipe of an Engine
or other steam cylinder for preventing the noise when escaping into a feed Tank.
November 4th 1886.

page_text: Improvements in Steam Boiling Apparatus.
We GEORGE GORDON PICKING and WILLIAM HOPKINS both of Bow Road in the
County of Middlesex Engineers, do hereby declare the nature of our said 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 Steam Nozzles, or apparatus employed
for heating or boiling liquids by Steam and has for its object destroying the noise
made by the steam entering the liquid to be heated or boiled and also by creating a
constant circulation of the liquid in the vessel in which it is being heated the steam is
more readily condensed and taken by the liquid and thus the operation is rendered
much quicker and performed with greater economy.
Where apparatus is at present employed for heating liquor by steam or where open
steam pipes are used, there is considerable noise occasioned by the steam entering the
liquid required to be heated or boiled also it is found that great variation of temperature
may exist in the liquid at different parts of the Boiling vessel for instance possibly
near the steam inlet pipe it may be at boiling point and at parts more distant from the
steam at a much less temperature.
But by the Improvements which form the subject of our Invention we obviate these
difficulties as will be understood from the following description that is to say
We provide a Nozzle of suitable dimensions according to the size of Steam Inlet.
This Nozzle is screwed on to or attached in any way to the end of the steam pipe, and
is fitted with an inner cone piece, which piece is provided with one or more holes for
the egress of Steam.
From this cone piece there is a pipe leading up to or above the surface of the liquid
to be heated or boiled, for the purpose of admitting air to the Nozzle during the
operation of heating or boiling. The admission of this air destroys the vacuum in the
Nozzle which would otherwise be formed by the steam coming in contact with the
water and by so doing effectually prevents the noise otherwise occasioned. The air
may be allowed to pass freely to the Nozzle by the partial vacuum formed or it may
be driven in by a Jet of steam or other method. Also the Nozzle being made with
an Internal cone piece for the purpose described causes (when the steam is turned on)
a complete circulation of the liquid in the boiling vessel so that every part in turn is
presented to the incoming steam and as a result an equal temperature is maintained.
This apparatus is also very useful when attached to the exhaust pipe of an engine or
other steam cylinder for preventing the noise when escaping into a feed Tank.
Such being the nature and object of our said Invention we will now describe the
manner in which the same is to be or may be performed and in order that it may be
clearly understood we have annexed hereunto a sectional drawing illustrative thereof
and have marked the same with letters of reference corresponding with same.
Fig. 1. A is the steam supply pipe and leads to the interior of the Nozzle piece B.
The steam rushes out at the one or more openings C in the Nozzle B causing (by its

page_text: Exit and by coming in contact with the liquor) a vacuum which draws in air down the
pipe D and through the small holes in the knob on end of pipe E this air mixes with
the liquor which enters at F and is driven out by the steam at G.
Where the Nozzle is made with more than one outlet as in Fig. 2 we provide a
small air chamber H at the end of the nozzle B which is connected at one side with
the air pipe D this chamber H serves to supply air to all the openings (in the
Nozzle B.
Fig. 3 is a section of a small air valve which is inserted in the air pipe, when working
a steam nozzle with low pressure steam or when sufficient air to prevent the noise is
not drawn into the nozzle by the vacuum formed. The top part I of this air valve is
connected to the main steam pipe so that the steam rushing past the holes J draws in
and drives into the Nozzle as much air as is required for the proper working of same.
Having now particularly described and ascertained the nature and object of
our Invention and in what manner the same is or may be performed we declare
that what we claim is as follows:-
:-
Firstly The combination and arrangement of the parts of Steam Heating or
Boiling Nozzles substantially as described and shewn in the accompanying drawings.
Secondly Supplying air to the Nozzle during the operation of heating or Boiling
substantially as described.