CERTAIN IMPROVEMENTS IN PRODUCING STEAM, APPLICABLE TO STEAM ENGINES AND OTHER PURPOSES,
Year: 1825

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Joun
BURR, of Halesowen, near Bumingham, Engineer, send greeting.
WHEREAS Пlis present most Excellent Majesty King George the Fourth
did, by His Roval Letters Patent under the Great Seal of the United Kingdom
of Great Britain and Ireland, bearing date at Westminster, the Twenty-first
day of June, in the sixth year of His reign, give and grant unto John
Thompson, of Vincent Square, Westminster, and the London Steel Works,
Thames Bank, Chelsea, and to me, the said John Buir, our executors,
administrators, and assigns, His especial licence, full power, sole privilege
and authouty, that we, the said John Thompson and John Burr, our exc-
cutors, administrators, and assigns, during the term of years therein expresser,
should and law fully might make, use, exercise, and vend, our Invention of
"CERTAIN IMPROVEMENTS IN PRODUCING STEAM, APPLICABLE TO STEAM ENGINES AND
OTHER PURPOSES," within England, Wales, and the Town of Berwick-upon-
Tweed, in such manner as to us, the said John Thompson and John Buir,
our executors, administrators, and assigns, should in our discretion sceni
meet, in which said Letters Patent is contained a proviso, that if we, the
said John Thompson and John Buir, should not particularly describe and
ascertain the nature of our said Invention, and in what manner the same
s to be performed, by an instrument in writing under our hands and seals,
or under the hand and seal of one of us, and 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 sand Letters Patent, that then the

page_text: sand Letters Patent, and all liberties and advantages whatsoever thereby
granted, should utterly cease, determine, and become void, as in and by the
said recited Letters Patent (relation being thereunto had) may more fully and
at large appeal
NOW KNOW YE, that in compliance with the said proviso, I the said
John Bu, do hereby declare that the nature of my said Invention, and in
what manner the same is to be performed, are particularly described and
ascertained in the Drawings hereunto annexed, and the following description
thereof and references thereto (that is to say)..
--
We effect our improvements by constructing a boiler o boilers, a gene-
rato or generators of any convenient form and dimensions, and made of such
materials as may be best adapted for the particular object or objects to which
the steam generated may be required, and which boilers or generators we
cause either to evolve o reciprocate in a vertical, horizontal, or oblique
duection, but we prefer to turn them horizontally in the fine. The cucular
motion of our boilers or generators must be either continuous of reciprocating,
but we prefer the foi mei, for these reasons, that the whole surface of our boilers
or generators will in every part be exposed uniformly to the action of the
fire, besides rendering the machinely more simple and effective The whole
of our boilers or generators must be inclosed in a convenient surface. guaid-
ing only the axis or pivots from the powerful action of the fire, and placed in
iron frames on the outside of furnace, and in this situation they must be
kept constantly in motion, by which, under a regular fire, the water contained
in them will be heated to an uniform temperature, and the materials of which
our boilers or generators are composed will be subjected to an uniform heat,
and thereby to an uniform expansion, which is not the case in stationary
boilers Our moving or revolving boilers or generators must be supplied with
water from one end of then respective axis or pivots, by a forcing pump or
other sufficient pressure through pipes, which by stuffing boxes or other con-
venient means the water can be conveyed into our boilers or generators while
they are moving, and yet prevent the escape of either water or steam.
Upon that end of the pipe which is in the interior of any of our boilers or
generators, there must be attached a valve, which the expansive force of the
steam will close, and which the power of the pump or other pressure must
open to admit the proper supply of water to enter any boiler or generator
At the opposite end of the axis of any of our boilers or generators the steam
must be allowed to pass. either constantly or at intervals, as may be desired,
by a valve opening outwards, which must have the means of beng kept
closed by any required force, according to the expansion of the steam to be

page_text: used, or a cock or slide, or any other of the well-known means may be
introduced, by, which an alternate or constant supply of steam may be
kept up, if more than one boiler or generator is required, then it will be
necessary that the steam so generated must enter into a gasometer or vessel,
and from which the steam so generated must be drawn for the purpose of feed-
ing any steam engine, or for heating any vessel or place It will be obvious
that our boilers or generators may be employed, it properly constructed, either
for generating low or high pressure steam, and they may be either partially
or wholly filled with water, as the character of then employment may render
necessary. If one boiler or generator is only used, and after the steam in it
is brought up to its requued state of expansion, then by means of a cock or
valve, the steam may be allowed ficely to pass into any cylinder or chamber
to which the steam is to be applied as a power for working machinery, or for
the purpose of heating any substance or place The essential part of our
Invention consists, in making our boilers or generators move upon their pivots
on which they are suspended in their ties and while they are in motion, the
materials of which they are composed are preserved, the heat or caloric econo-
mically applied, and the quantity of steam produced by the same portion of
fuel will be found to be much greater than by any means yet employed for
the generation of steam
Figures 1, 3, and 4, shew Views ot fom of our generators or
boilers I, I, I, I, with the necessary machinery for turning them while
they are in operation. Fig 1 represents an нon fiame, with the pivots of
tour boilers on generators working in it. A, A, one of the iron plates
that come up against the buckwork of the furnace, and connected by non
pillars to the opposite non plate which supports the other ends of the
pivots of the boilers or generators. B, B, B, B, are the four pillars that
keep the iron plates together, without connecting them to the buckwork
C, C, C. C, are the pivots of boilers or generators D, D, D, D. the four
cog wheels which work into the cog wheel E, and by the motion of which the
four generators are turned The cog-wheel Es connected to the axle or
spindle F, and at the opposite end of which spindle is fixed the screw wheel G,
and which axle and wheel ac turned by the endless pinion II, and which
pinion, with its shaft, mas be put into rotation by any of the common means
of producing cucular motion. Care must be taken to afford sufficient play
or lateral motion to the generator between the plates A. A, so that no expan-
sion shall bind them in the pivot holes of the plates The mode by valves,
cocks, stufling boxes, and pipes, as before described, will render the means of
supplying our generators with water through the agency of a pump or other

page_text: pressure, to be worked as may be most convenient and obvious to any com-
petent workman, as well as the means before descubed for conveying away
the steam that may be generated in our boilers or generators We do not
confine ourselves to the particular modification of the furnace generators, or
the machinery for giving them motion, nor do we claim the abstract parts of
which they are composed, nor the particular modifications which we have
described, but as they are the means of applying the essential character of our
Invention and improvements (which is employing moving instead of stationary
boilers or generators), and any other mode by which cucular or reciprocating
motion is given to any boiler or generator while it is enclosed either wholly
or partly in any furnace or fic. for the purpose of heating water for the object
of generating steam, we claim to be substantially our Invention, and the
adopting our improvements for generating of steam, and from the use of which
the benefits before described will result
In witness whereof, I, the said John Bu, have hereunto set my hand
and seal, this Twenty-first day of December, in the year of our Lord
One thousand eight hundred and twenty fin