IMPROVEMENTS IN 1. FURNACES FOR GENERATING STEAM IN MARINE AND.OTHER DOILERS.
Year: 1874

page_text: LETTERS PATENT to John Moore Hyde, of Greenwich, in the County
of Kent, Ship Builder, for the Invention of "IMPROVEMENTS IN
1.
FURNACES FOR GENERATING STEAM IN MARINE AND.OTHER DOILERS.
PROVISIONAL SPECIFICATION left by the said John Moore Hyde
at the Office of the Commissioners of Patents, with his Petition,
on the 7th May 1874.
I, JOHN MOORE HYDE, of Greenwich, in the County of Kent, Ship
Builder, do hereby declare the nature of the said Invention for "IM-
PROVEMENTS IN FURNACES FOR GENERATING STEAM IN MARINE AND OTHER BOILERS,"
to be as follows:-
These improvements refer to the introduction or application of a
vertical furnace made either with plate iron, and lined with fire-brick or
having water space sides arranged in such manner as hereafter described,
to admit of the coal or fuel being principally introduced at the bottom
of the fire instead of on the top, so that the gases and smoke evolved by

page_text: ombustion shall pass through the firc. from the under side instead of
over the top, and this I accomplish by means of a hopper, in which the
coal or fuel is placed, whence it is passed to the furnace by an arrange-
ment of screws, racks, and pinions, or by a system of levers; such
furnace being also applicable to the boilers already in existence.
The combustion should be stimulated by steam or air jets, as may be
found necessary, introduced at the bottom of the said furnaces instead of
at the base of the funnel, as is now usually adopted.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said John Moore Hyde. in the Great Seal Patent Office
on the 7th November 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MOORE HYDE, formerly of Greenwich, in the County of Kent, Ship
Builder, but now of 9, Cambridge Gardens, Notting Hill, in the County
of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of May, in the
year of our Lord One thousand eight hundred and seventy-four, in
the thirty-seventh year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said John Moore Hyde,
Her special licence that I, the said John Moore Hyde, my execu-
tors, administrators, and assigns, or such others as I, the said
John Moore Hyde, 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 FURNACES FOR GENERATING
STEAM IN MAKINE AND OTHER BOILERS," upon the condition (amongst others)
that I, the said John Moore Hyde, 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

page_text: six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said John Moore Hyde, 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:-
This Invention refers to the introduction or application of a vertical
furnace made with either cast or plate iron, lined with fire-bricks or
having water space sides arranged in such manner as will be hereafter
described, to admit of the coal or fuel being principally introduced at
the bottom or front side of the fire instead of on the top, as is usual, so
that the gases and smoke evolved by combustion shall pass through the
fire from the bottom or front end and thus get consumed. This I
accomplish by means of a screw, a rack, and pinion, or by hand, such
furnace being also applicable to the boilers already in use:-
The combustion being stimulated by the introduction of steam and
air jets, or air jets alone, as may be necessary, at the bottom or side of
the said furnace, and to prevent the possibility of priming, usual with
intense fires, I introduce a diaphragm plate perforated with holes over
the entire surface of the water, or nearly so.
Having thus far described my Invention, I will now in further com-
pliance with the aforesaid "condition in the said Letters Patent contained
proceed to more fully and particularly describe and ascertain the same.
by referring to the Drawings, as follows:-
DESCRIPTION OF THE DRAWINGS.
Drawing No. 1, Figure 1, represents section of an ordinary marine
boiler with the " cupola furnace" introduced into the ordinary furnace.
R is the rack; P, the pinion; W, hand wheel by which the fuel from the
hopper H is introduced into the bottom of the furnace; B is the blast
pipe used to stimulate the fire, as may be found necessary; C is the
furnace front.
Drawing No. 2, Figure 2, section of an ordinary marine boiler, as in
Fig. 1, with the "cupola furnace" introduced. H is the hopper through
which the fuel may be worked into the furnace by hand with an ordinary
poker or shovel; B is the blast pipe for use as required; C is the furnace
front.
-

page_text: Having now particularly described and ascertained the nature and
object of my said Invention, and indicated in what manner the same is
to be performed or carried out in practice, I hereby declare that I claim
the herein-before described Invention of “ Improvements in Furnaces for
Generating Steam in Marine and other Boilers," as the same are herein-
before set forth and described and illustrated by the accompanying
Drawings, it being understood that I do not limit myself to the precise
details exhibited in said Drawings, as I lay no claim to details "per se,"
except as constituents of my said Invention, as herein-before described.
In witness whereof, I, the said John Moore Hyde, have hereunto
set my hand and seal, this Sixth day of November, in the year of
our Lord One thousand eight hundred and seventy-four.
Witness,
T. MORGAN,
Secretary,
Inventors' Patent Right Ass"., Limited,
21, Cockspur Street,
Charing Cross, S.W.
J. M. HYDE. (L.s.)