CERTAIN IMPROVEMENTS IN STEAM BOILERS
Year: 1863

page_text: LETTERS PATENT to William Jones, (of the Firm of William Jones and
Sons,) of Warrington, in the County of Lancaster, Engineer, for the
Invention of "CERTAIN IMPROVEMENTS IN STEAM BOILERS."
PROVISIONAL SPECIFICATION left by the said William Jones at the
Office of the Commissioners of Patents, with his Petition, on the
7th August 1863.
I, WILLIAM JONES, (of the Firm of William Jones and Sons,) of Warrington,
in the County of Lancaster, Engineer, do hereby declare the nature of the
said Invention for "CERTAIN IMPROVEMENTS IN STEAM BOILERS," to be as
follows:-
My Invention relates to such steam boilers wherein the furnace and fire
occupies a position inside the boiler, and consists in rendering the furnace or
fire-place and fire-bars moveable, so that they may be removed by simple
mechanical means from within the boiler for the purpose of cleaning or to
repair the boiler, and to be replaced by the same means when the fire is
required. This may be effected by mounting the fire-bars in a framing
attached to a lever, so that by moving the lever the fire-place may be removed

page_text: or replaced in the boiler as required, or it may be effected by rack and pinion,
or by other mechanical equivalents, the chief feature of the Invention being
the application of a detached and moveable furnace to steam boilers, by the
employment of which numerous advantages may be obtained.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Jones in the Great Seal Patent Office on the
6th February 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
JONES, (of the Firm of William Jones and Sons,) of Warrington, in the
County of Lancaster, Engineers, send greeting.
.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of August, in the year of our Lord One
thousand eight hundred and sixty-three, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said William Jones, Her special license that I, the said William Jones,
my executors, administrators, and assigns, or such others as I, the said William
Jones, 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 "CERTAIN IMPROVEMENTS IN STEAM
BOILERS," upon the condition (amongst others) that I, the said William
Jones, my executors or administrators, by an instrument in writing under
my, or their, or one of 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 William Jones, do hereby declare the
nature of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following state-
ment and accompanying Drawings (that is to say):-
My Invention relates to such steam beoilers wherein the furnaces and fire
occupies a position inside the boiler, and consists in rendering the furnace or

page_text: fire-place and fire-bars moveable, so that they may be removed by simple
mechanical means from within the boiler for the purpose of cleaning or to repair
the boiler, and to be replaced by the same means when the fire is required.
This may be effected by mounting the fire-bars in a framing attached to a
lever, so that by moving the lever the fire-place may be removed or replaced
in the boiler as required, or it may be effected by rack and pinion, or by other
mechanical equivalents, the chief feature of the Invention being the ap-
plication of a detached and moveable furnace to steam boilers, by the
employment of which numerous advantags may be obtained.
In order that the Invention may be better understood and explained in
detail, I have hereunto attached a Sheet of Drawings made upon a scale of
about one inch and a half to the foot, similar letters of reference being marked
upon corresponding parts in both Figures.
Fig. 1 represents a side elevation of a steam boiler having the improved
arrangement of fire-placo applied thereto, and shewing the fire-place with-
drawn from within the boiler for the purpose of supplying more fuel, or to
clean the interior of the boiler; Fig. 2 is a side elevation, shown partly in
section, to exhibit the fire-place in its position within the boiler.
In Figs. 1 and 2, a, a, is the boiler, to which the slotted brackets or
guides b, b, are attached; c, c, is the grate frame or fire-place, upon which are
two studs d, d, which slide in the said guides b, b, to retain the fire-grate in
proper position during its ascent or descent. The removal and replacement
of the grate is effected by means of the handle and forked lever e, the fork
ends of which are connected to the fire-grate by means of the connecting
rods f,f, and the lever is hinged upon the fulcra 9, 9, so that by raising or
depressing the handle the fire may be withdrawn from or replaced within the
boiler.
The Invention is designed for the purpose of dispensing with the usual
firing holo through the inner and outer case of vertical steam boilers, or in
horizontal boilers where vertical fire-boxes are employed, (but more parti-
cularly in portable boilers,) and thereby obtaining a perfectly enclosed fire, and
an entire surrounding unbroken heating surface. It also removes the detri-
mental effect of uneven expansion, as by this means the inner and outer caso
of the boiler are disconnected.
Having now described the nature of the said Invention, together with the
method of carrying the same into practical effect, I wish it to be distinctly
understood that I claim the employment and use of a detached and moveable
furnace grate or fire-place capable of being raised and lowered as required by

page_text: lovers and rods or other mechanical equivalent, as herein-before described, set
forth, and fully illustrated in the Drawings attached.
In witness whereof, I, the said William Jones, have hereunto set my
hand and seal, this Fourth day of February, in the year of our Lord
One thousand eight hundred and sixty-four.