IMPROVEMENTS IN GENERATING ELASTIC FLUIDS AND IN THE APPARATUS FOR THAT PURPOSE
Year: 1859

page_text: LETTERS PATENT to George Scott, Engineer, of No. 3, Priory Cottages,
Peckham, in the County of Surrey, for the Invention of "IMPROVEMENTS
IN GENERATING ELASTIC FLUIDS AND IN THE APPARATUS FOR THAT PURPOSE,"
PROVISIONAL SPECIFICATION left by the said George Scott, at the
Office of the Commissioners of Patents, with his Petition, on the 12th
October 1859.
I GEORGE SCOTT. Engineer, of No. 3, Priory Cottages, Peckham, in the
County of Surrey, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN GENERATING ELASTIC FLUIDS AND IN THE APPARATUS FOR THAT
PURPOSE," to be as follows:-
This Invention consists of the following additions to and alterations in the
Improvements in Generating Elastic Fluids, and the Apparatus for that
Purpose, a former Invention of mine described in the Letters Patent No. 565,
and dated the 19th day of March 1858, granted to me.
To the "steam generating apparatus, therein described, I add (as my present
"Invention & improvements,") or connect respectively with the air, gas, or
other elastic fluid, and water pump or pumps, one or more vessels or receivers,
and in case of using any number of coils. I supply from these vessels or
receivers each coil or coils with the requisite quantities of air, gas, or other
[Price 8d.]

page_text: elastic fluid and water. The pressure on the air, gas, or other elastic fluid,
and on the water contained in their respective vessels or receivers is regulated
at pleasure by means of valves attached to or connected with each vessel or
receiver, which valves are actuated on by a spring or springs, weight or
weights, or other mechanical contrivance, so as to regulate the force with
which the said air, gas, or other elastic fluid, and the water (as well as their
relative proportions) are injected into the coil or coils described in my herein-
before mentioned Patent. I conduct the air, gas, or other elastic fluid, from
its vessel or receiver into the body of the "steam generating apparatus" at
that part of each coil or coils where the heat is greatest; through a tube or
tubes finely perforated for a short distance, & I insert this tube or tubes in
that conveying the water from its vessel or receiver and surround it by the
water tube or tubes conveying the water, and form them so as to leave an
annular space round the air, gas, or other elastic fluid tube, and fill this annular
space also with water and inject it, as well as the air, gas, or other elastic fluid,
into the coil or coils in a commingled and finely devided state.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Scott, in the Great Seal Patent Office on the 12th
April 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
SCOTT, Engineer, of No. 3, Priory Cottages, Peckham, in the County of Surrey,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twelfth day of October, in the year of our Lord One
thousand eight hundred and fifty-nine, in the twenty-third year of Her reign,
did, for Herself. Her heirs and successors, give and grant unto me, the
said George Scott, Her special licence that 1, the said George Scott.
my executors, administrators, and assigns, or such others as I, the said
George Scott, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
GENERATING ELASTIC FLUIDS AND IN THE APPARATUS FOR THAT PURPOSE," upon the
condition (amongst others) that I, the said George Scott, my executors or
administrators, by an instrument in writing under my, or their, or one of

page_text: their hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said George Scott, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement and accompanying Drawings (that is to say):-
These improvements on my former Patent, No. 565, dated 19th of March
1858, are as follows:-Figure 1 being a sectional elevation of a double coil
generator with pumps, receivers, &c., and Figure 2 a plan of same, viz.,
to the steam generating apparatus therein described I add a receiver or
vessel B connected with the water pump A, and placed on its delivery pipe f,
into which receiver or vessel the water to supply the generator G is forced,
and by the compression of the air in said receiver or vessel B the water is
forced through the supply pipe h into the generator G, at a greater and more
equalised pressure than by the pump as employed in my before-mentioned
Patent. The desired pressure is regulated by the weight or weights F acting
on the lever 1, or by a spring or springs; and a stop-cock g on the supply pipe
h affords the means of injecting the water into the mixing box m, and thence
into the generator G. The desired pressure is regulated by the weight or weights
F, F, acting on the levers 1, 1, and a stop-cock g affords the means of injecting
water into the mixing box, and thence into the generator G.
I also add to the air pump C described in my before-mentioned Patent a
receiver or vessel D placed on the delivery pipe f¹, into which receiver or
vessel the air is forced, and through the supply pipe h', is conducted into the
mixing box m, whence with the water it passes through
"wire gauze or
perforations," as described in my before-mentioned Patent.
<<
As an improve-
ment on that plan 1 introduce the air separately through the perforated pipes
E, as shown in Figures 1 and 2, these air pipes being inserted in and
surrounded by the pipes forming the generator, and I thus introduce the air
into that portion of the pipes where the water requires the most ebullition, and
it is of advantage to divide it into minute particles. The water forced through
"the wire gauze or perforations" surrounds the said pipe or pipes through
which the air is introduced into the coil or coils forming the generator.
Figure is a sectional elevation of a three-coil generator, wherein water
alone is used to produce steam of great elastic force; and Figure 4 is a plan
of same.

page_text: By means of the pump A water is forced into the receiver or vessel B
through the delivery pipe f. and thence by the supply pipe into the mixing
box m, into which steam (instead of air, as before described), is supplied from
a small coil n. which communicates with the mixing box m through the steam
pipe o, a portion of which steam passes through the small perforated pipe e
into the coil or coils forming the generator. The safety valve P attached to
the small coil is weighted, so that a higher pressure may be maintained in it
than in the other coils forming the generator, the pressure on which is
regulated by the safety valve S. By this means 1 cause, an active circulation
and separation of the particles of water on and before their introduction into
the heated coil or coils.
Figure 5 is an elevation of a multitubular generator w, x, y, z, arranged so
that the convolutions of the coils support each other, and connect with an
horizontal steam dome or receiver S. Figure 6 is a plan of same.
Figure 7 is an elevation of a three-coil generator x, y, z, showing the steam
dome or receiver S placed vertically between the coils.
It must be here clearly understood that. I apply at option the whole or any
part of the above described improvements to my Patent steam generator of
whatever number of coils they may be made.
Having particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, it must be clearly
understood that I do not claim all the separate parts as my Invention, but
that what I do claim are the following, viz. :-
The combination of the several parts as herein-before described.
Vessels or receivers connected with the air and water pumps to ensure and
regulate uniformity of pressure as described.
A perforated pipe or pipes passing through the pipe forming a coil, and
coming into contact with the water where the steam is first generated, through
which either air or water may be forced into the coil. If air, this perforated
pipe is surrounded by an annular space of water; if water, this annular space
is filled with air.
The use of steam from a small coil of a higher pressure than that generated
in the portion of the coils of the generator to aid in finely dividing the particles
of water. A portion of the said higher pressure steam being supplied to the
mixing box through a branch pipe with a stop-cock, and another to the other
coil or coils in such proportions as may be found most advantageous.
The reduction of the sectional area of the tube forming the coil or coils by
the insertion of a smaller tube or tubes, as described and shown in Figures 1,
2, 3, and 4, or by making the tube for any desired distance from the mixing
5

page_text: box to where the five first acts on it, smaller in sectional area than the
remaining parts of the coil or coils forming the generator.
In witness whereof, I, the said George Scott, have hereunto set my
hand and seal, this Twelfth day of April, in the year of our Lord
One thousand eight hundred and sixty.
Present,
W. H. KINGSTON.
GEORGE SCOTT. (L.S.)