IMProve- MENTS IN BREWERS' AND OTHER FURNACES
Year: 1871

page_text: LETTERS PATENT to Thomas Halliday, of Dalbeattic, in the County
of Kirkcudbright, North Britain, for the Invention of "IMProve-
MENTS IN BREWERS' AND OTHER FURNACES."
Sealed the 7th October 1871, and dated the 12th April 1871.
PROVISIONAL SPECIFICATION left by the said Thomas Halliday at
the Office of the Commissioners of Patents, with his Petition, on
the 12th April 1871.
I, THOMAS HALLIDAY, of Dalbeattie, in the County of Kirkcudbright,
North Britain, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN BREWERS' AND OTHER FURNACES," to be as follows, that is
to say:
This Invention has for its object to render brewers' furnaces more
economical in fuel and more convenient in working than heretofore,
and is also advantageously applicable in any cases in which the boiler
pan, still, or other object to be heated is necessarily or may be con-
veniently placed at a height above the ground floor or basement of the
establishment.

page_text: In breweries it is desirablo to havo the boiler or heating vessel or
pau at the level of an upper floor so that the worts or other liquid
may be transferred from it by gravitation, and in carrying out the present
Invention the boiler or pan is so placed, but instead of constructing
the furnace immediately under and close up to the boiler, such furnaco
is constructed at the ground floor or basement, and an open flue or
hollow space is constructed directly up from it to the bottom of the
boiler, and thence branch flucs are constructed round the sides of the
boiler and are finally led to the ohimney. The grate or fuel chamber
is contracted at its upper part by arranging the fire-bricks of which
its sides are formed so as to project inwards over each other stepways,
but the space or flue is enlarged again higher up, and immediately
above the contraction air is admitted from a number of openings in
the sides of the fluc, such openings communicating with spaces formed
in the walls about the grate, and into which air is admitted from the
outside through regulating valves or dampers. The firc-door is by
preference formed with an inlet for air, which may have a regulating
slide, and is hinged across its top so that it can be easily opened by
drawing it up by a chain under the control of a workman stationed at
the boiler above.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Halliday in the Great Scal Patent Office
on the 11th October 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
HALLIDAY, of Dalbeattic, in the County of Kirkcudbright, North
Britain, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of April, in the year of our
Lord One thousand eight hundred and seventy-one, in the thirty-fourth
year of Her reign, did, for Horsolf, Her heirs and successors, give
and grant unto me, the said Thomas Halliday, Her special licence that
I, tho said Thomas Halliday, my executors, administrators, and assigns,
or such others as I, the said Thomas Halliday, my executors, admi-
nistrators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein

page_text: 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 BREWERS'
AND OTHER FURNACES," upon the condition (amongst others) that I, the
said Thomas Halliday, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and scals,
should particularly describo 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 Thomas Halliday, do hereby declaro
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 in writing, reference being had to the accom-
panying Drawings, that is to say :-
My said Invention has for its object to render brewers' furnaces more
economical in fuel and more convenient in working than heretofore;
and is also advantageously applicable in any cases in which the boiler,
pan, still, or object to be heated is necessarily or may be conveniently
placed at a height above the ground floor or basement of the establish-
ment.
And in order that my said Invention and the manner of performing
the same may be properly understood, I hereunto append a Sheet of
explanatory Drawings to be herein-after referred to and representing
the application of my improvements to a brewery furnace.
Figures 1 and 2 are vertical sections as at right angles to each other;
Figure 3 is a horizontal section as at the line A-A in Figure 1, and
Figure 4 is a horizontal section as taken lower down.
In breweries it is desirable to have the boiler or heating vessel or
pan 1 at the level of an upper floor 2, so that the worts or other liquid
may be transferred from it by gravitation, and in carrying out my
present Invention the boiler or pan 1 is so placed, but instead of con-
structing the furnace immediately under and close up to the boiler such
furnace 3 is constructed at the ground floor or basement 4, and an
open flue or hollow space 5 is constructed directly up from it to the
bottom of the boiler 1, and thence branch flues 6, 7, are constructed
round the sides of the boiler, and unite in a short cross flue 8, finally

page_text: 5
leading to the chimney 9. The vertical flue or space 5 thus forms a
chamber for the combustion of the fuel gases rising from the fuck
chamber or furnace 3 below, and in order to secure the complete
ignition and utilisation of the fuel gases in the said combustion space
the grate or fuel chamber 3 is constructed at its upper part by arranging
the fire-bricks 10 of which its sides are formed so as to project inwards
over each other stepways, but the space or flue is enlarged again higher
up, and immediately above the contraction air is admitted from a
number of openings 11 communicating with spaces 12 formed in the
walls round about the grate 3 and into which air is admitted from the
outside through regulating valves or dampers.
The amount of contraction is best seen in Figure 4 as I have found
it to answer in practice, but it may be varied according to circumstances.
The contraction induces a more complete intermingling of the air and
fire gases, and so conduces to their thorough combustion and conso-
quently to economy of fuel. The fire-door 13 is by preference formed
with an outlet 14 for air which may have a regulating slide, and is
hinged across so that it can be easily opened by drawing it up by a
chain 15 under the control of a workman stationed at the boiler 1 above.
Having thus particularly described my said Invention, and the manner
in which the same is to be performed, I have to state that I do not
restrict myself to the precise details herein described or delineated, but
that what I believe to be novel and original, and claim as the Invention
secured to me by tho herein-before in part recited Letters Patent is,
the constructing of brewers' and other furnaces at the lower part of a
flue or space leading up to the boiler, pan, still, or other object to be
heated, and the forming of such fluo or space with a contraction above
the fuel chamber with inlets for air immediately above such contraction,
substantially as herein-before described.
In witness whereof, I, the said Thomas Halliday, have hereunto
set my hand and scal, this Tenth day of October, in the year of
our Lord One thousand cight hundred and seventy-one.
THO³. HALLIDAY. (L.S.)