INVENTION AND DISCOVERY OF A CERTAIN ADDITION OR ADDITIONS TO, OR AN IMPROVEMENT OR IMPROVEMENTS UPON, THE STEAM ENGINE, OR STEAM ENGINE APPARATUS
Year: 1824

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MOORE, of Broad Weir, in the City of Bristol, Gentleman, send greeting.
WHEREAS His present Majesty King George the Fourth, by His Letters
Patent under the Great Seal of the United Kingdom of Great Britain and
Ireland, bearing date at Westminster, the Sixth day of November now last
past, did give and grant unto me, the said John Moore, his especial licence,
full power, sole privilege and authority, that I, the said John Moore, my
executors, administrators, and assigns, and such others as I, the said John
Moore, my executors, administrators, or assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during the term
of years therein expressed, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, my
"INVENTION AND DISCOVERY OF A CERTAIN ADDITION OR ADDITIONS TO, OR AN
IMPROVEMENT OR IMPROVEMENTS UPON, THE STEAM ENGINE, OR STEAM ENGINE
APPARATUS;" in which said Letters Patent there is contained a proviso obliging
me, the said John Moore, by an instrument in writing under my hand and
seal, particularly to describo and ascertain the nature of my said Invention,
and in what manner the same is to be performed, and to cause the same to be
inrolled in His Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said recited Letters Patent, as in
and by the said recited Letters Patent, reference, being thereunto had, will
more fully appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
John Moore, do hereby describe and ascertain the nature of my said Invention,
and the manner in which the same is to be performed, by the Plans or
Drawings hereunto annexed, and the following description thereof, that is
to say :-
My said Invention consists, in the first place, in using tubes or pipes, so
arranged that each tube has one end inserted into a waterway and its other
end into a steamway; and I place round the outside of the tubes a roservoir
to contain water, for supplying the tubes when there is not otherwise a con-
tinual supply passing to them for the production of steam. The rescrvoir is
placed at whatever height up the tubes may be best or most convenient.
Fig. 1 is a section of the boiler, with its supports M, and also of the material
surrounding it. The two parts of the waterway B are screwed together at
the flanges D. The tubes A are made water-tight in the waterway B, by
being screwed or otherwise fastened into it. The pipes C are screwed to the
waterway B, and to the reservoir G. The pipe E is screwed to B. The tubes A
extend from B into the steamway F, whereto the tubes A are fastened by
being rivetted, brazed, soldered, or by other means made steam-tight. The
reservoir G is screwed together at the flanges f. g. The two pipes Hare
screwed to the reservoir G, and to the steamway F, the two parts of which
steamway are screwed together at the flanges I. The pipe K is screwed
to F, to conduct the steam from the tubes A to the steam engine. The
pipe E is for water to be passed through to the waterway B, the tubes
A, and up the pipes C, into the reservoir G. The pipes II are to convey into
the reservoir G the water which may pass by boiling out of the tubes A into
the steamway F. The place at L is for fire, supported upon the grating a.
O, the inside of the water way B; P, the insido of the reservoir G; Q. the
inside of the steamway F; S, T, U, V, the material which surrounds the boiler
to prevent the air from entering freely among the tubes any other way than
at N, and between the grating a of the fire. The spaces between B and U,
and B and V, are stopped, as shewn by the dotted lines. The door W is for
supplying the fire with fuel. The commencement of the chimney is at S, T.
Fig. 2 is a top view of Fig. 1. The letters in this Figure refer to the same
parts as are designated by the same letters in Fig. 1. I seldom use a less
number of tubes A than those whose diameters, when added together, are equal
to tho diameter of the steam piston's cylinder, but generally a much larger
number of tubes. The length of the tubes A may be regulated by the dimen-
sions of the steam engine; the length of the steam piston's cylinder will
generally be the shortest length of those tubes. I sometimes place within the

page_text: tubes A a tube or tubes which remain loose and unattached to any of the mate-
rials which surround them, being in length about as long as the tubes A. The
inside of the steamway F I generally make of such capacity that it can contain
more than the contents of the tubes A. The diameter of the capacity of the
reservoir G may be varied; there may also be more than one reservoir used at
the same time. The several parts of the boiler, except the tubes which are
within the tubes A, may be fastened together by brazing, soldering, or any
other effectual means.
The particulars which I claim as my Invention are, the arrangement of the
tubes A, and the fire, as before described, whether the tubes A are placed in
a circle or circles, the circles being concentric or excentric with each other;
as also that of having a lesser tube within the larger one, which produces the
steam. And I also claim the reservoir G as a part of my Invention for
occasionally supplying the tubes A with water. In the next place I put pad-
ding upon both sides of the piston of the steam engine, consisting of some
wove material, such as linen, cotton, woollen, or other substance, provided it be
flexible and wove; but in future I shall only speak of linen. It is placed
upon both sides of the piston, one piece of linen over the other, having a piece
or pieces of paper between them. The linen and paper are placed as
smooth as can readily be done upon both sides of the piston; after which a
circle of metal is screwed to the piston upon the padding on each side of the
piston; the thinner the linen and paper are the better. I add pieces of linen
and paper to the piston until it is steam-tight or nearly so.
Fig. 3 is a section of the piston padding and circles within a cylinder or part
of a cylinder, shewing that the linen and paper rest against the sides of the
cylinder which surrounds or nearly touches the piston. 1, 2, 3, 4, is the
cylinder, or part of the cylinder; Z, the piston rod. The piston Y has
the padding of linen and paper at 8. The metal circles are shewn at 9.
Fig. 4 is a top view of the piston rod Z and piston Y. The padding is
laid on the piston at 5.
Fig. 5 is a top view of one of the circles, shewing the holes through which
the screws are passed; the other circle is similar to it. That which I claim
as my Invention in respect to the padding of the steam engine is, the using of
a wove material as a padding to prevent steam from passing by the piston in
any considerable quantity.
In witness whereof, I, the said John Moore, have hereunto set my hand
and seal, this Fourth day of May, in the year of our Lord One thousand
eight hundred and twenty-five

page_text: BE IT REMEMBERED, that on the same Fourth day of May, in the
year above mentioned, the aforesaid John Moore came before our Lord
the King, and acknowledged the Specification aforesaid, and all and every
thing therein contained, in form above written. And also the Specification
aforesaid was stamped according to the tenor of the Statute in that case made 5
and provided.