CERTAIN IMPROVEMENTS IN
Year: 1843

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, we, CHARLES
TAYLEUR and JAMES FREDERICK DUPRE, of the Vulcan Foundry, Warrington,
in the County of Lancaster, and HENRY DUBS, also of the Vulcan Foundry,
Engineer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Nineteenth day of April, in the sixth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
Charles Tayleur, James Frederick Dupré, and Henry Dubs, our exors,
admiors, and assigns, Her especial licence, full power, sole privilege and
authority, that we, the said Charles Tayleur, James Frederick Dupré, and
Henry Dubs, our exors, aditiors, and assigns, and such others as we, the said
Charles Tayleur, James Frederick Dupré, and Henry Dubs, 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 that part of Her said Majesty's United Kingdom of
Great Britain and Ireland called England, Her Dominion of Wales, and the
Town of Berwick-upon-Tweed, our Invention of "CERTAIN IMPROVEMENTS IN

page_text: BOILERS;" in which said Letters Patent there is contained a proviso that we,
the said Charles Tayleur, James Frederick Dupré, and Henry Dubs, or one
of us, shall cause a particular description of the nature of our said Invention,
and in what manner the same is to be performed, under our hands and
seals, or under the hand and seal of one of us, to be inrolled in Her Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said in part recited Letters Patent, as in and by the
same, reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, we, the said
Charles Tayleur, James Frederick Dupré, and Henry Dubs, do hereby declare
that the nature of our said Invention, and in what manner the same is to be per-
formed, are fully set forth and ascertained in and by the following Specification
thereof, reference being had to the Sheets of Drawings hereunto annexed,
marked A, B, and C, that is to say:—
Number 1 of the Drawings, on Sheet A, is a longitudinal section through
the centre of a boiler of our improved construction. Number 2 is a plan of
the same on the line a, b. Number 3 is a transverse section thereof on the
line c, d; and Number 4 is a transverse section on the line e,f. F is the fire
box; G, the flue; and H1, H2, H3, H', the water spaces. C, C, C, are a number
of hollow cones which are wholly open at top to the-water space H', so as to
be also filled with water, and project downwards at the narrow ends, which are
closed into the flue G. A separate view of one of these cones on an enlarged
scale is given in Figure Number 5. At top each cone is passed through an
orifice in the upper plate or roof (P, Figure 5) of the flue G, or in the top of
the fire box F, and secured as shewn in its place by an outer ring R¹, and an
inner ferule R2. At the narrow end or bottom it is closed by a conical plug,
which may be knocked inwards from the outside when access is required to
the interior of the cone for the purpose of cleaning. In those cones which are
so placed as not to be easily got at, as, for example, those marked 0, 0, 0,
Number 1, a female screw hole S is made in the upper and larger end of the
plug to enable it to be withdrawn by a long rod with a male screw at its
extremity. The cones in the top of the fire box are made of various lengths,
and arranged so as to present in their general combination the arched
appearance shewn in the transverse section, Number 3, the object of which is
to give free access to the fire. Throughout the flue G the cones are also of
various lengths adapted to the cylindrical form of the flue, as shown in
Number 4. D is the steam chamber, which at one end is of a dome shape E;
the chimney F¹, a damper.
The Drawings, Numbers 6 and 7 (Sheet B) represent the application of

page_text: our improved boiler to a locomotive engine. Number 6 is a longitudinal
section of the furnace boiler and tender. Number 7 represents at one end
a plan of the top of the boiler through the line g, h, and at the other a section
of the flue tender and part of the boiler..
The Drawings, Numbers 8 and 9, Sheet A, represent a modification of our
Invention, well adapted to marine purposes, Number 8 being a longitudinal
section, and Number 9 a transverse section. Here the boiler is without any
dome, and of a cylindrical form throughout, the cones being placed and arranged
as before described. Instead of the cones being fixed as before mentioned
with their open and broad ends at top, they may be fixed in the reverse
position, so as to allow the heated air to rise inside of them; and in that case
the open conical space between them would be filled with water; but this is
an arrangement which we do not think so good as that first before described.
To regulate the quantity of steam admitted from the boiler to the engine, we
attach to the throttle valve a regulator, of the construction represented in
Number 10, Sheet C. T is an upright hollow shaft, to which a bush V, carrying.
the wings W, W, is connected by means of a pin x, which slides in the
groove y. The bush and wings are adjusted to such a weight and angle that
as long as the engine performs regularly the number of revolutions required of
it, the bush neither rises nor falls, but as soon as the engine is going too fast or
too slow, the increase or diminution of resistance encountered by the wings
causes the bush to rise or fall, and to push up or pull down a rod M connected
to it, which, through the medium of the bell cranks N, N, closes or opens more
or less the throttle valve, till, by its diminished or increased supply of steam,
the engine is restored to its proper velocity.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that what we claim as of our
Invention is, first, the boiler with hollow vertical cones wholly open at the
widest end, placed, arranged, and fixed as before described (or placed, arranged,
and fixed in any other analogous mode or modes), whereby space is saved and
the generation of steam accelerated; and, second, the steam supply regulator
before described.
In witness whereof, I, the said Henry Dubs, on behalf of myself, the said
Charles Tayleur and James Frederick Dupré, have hereunto set my
hand and seal, this Nineteenth day of October, One thousand eight
hundred and forty-three.

page_text: AND BE IT REMEMBERED, that on the Nineteenth day of October, in
the year of our Lord 1843, the aforesaid Henry Dubs came before our said
Lady the Queen in Her Chancery, and acknowledged the Specification afore-
said, and all and every thing therein contained and specified, in form above
written. And also the Specification aforesaid was stamped according tenor
of the Statute made for that purpose.
Enrolled the Nineteenth day of October, in the year of our Lord One
thousand eight hundred and forty-three.