IMPROVEMENTS IN FURNACE BARS
Year: 1873

page_text: LETTERS PATENT to Edward Newbold, of the Town and County of
the Town of Nottingham, Metal Merchant, for the Invention of
"IMPROVEMENTS IN FURNACE BARS."
Sealed the 28th October 1873, and dated the 9th May 1873.
PROVISIONAL SPECIFICATION left by the said Edward Newbold at the
Office of the Commissioners of Patents, with his Petition, on the
9th May 1873.
I, EDWARD NEWBOLD, of the Town and County of the Town of
Nottingham, Metal Merchant, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN FURNACE BARS," to be as follows:-
My improvements are applicable to the bars of locomotive retort and
ordinary furnaces, and consist in forming the shoulders of the bars or
framework in the centre of the ends of the bars by means of two bands
or straps made loose, with a slot and small band to connect, I am thus
enabled to support any metal or mineral I think well to insert. I can
make all solid, or by placing a strip at bottom I can make a trough. By

page_text: placing a strip at the top, bottom, and sides I produce a hollow bar, into
which trough or hollow bar I can introduce a stream of water or steam
through the bearer bar or through a tube, which I can place outside the
furnace into the said troughs and hollow bars and get a circulation or
flow of water or steam round every bar in a furnace, thus keeping tho
bars cool. By the use of these bands, which can either be made solid,
fast, loose in halves, or trough like, the shoulders of the bars being in
the centre of their ends, I make the said bars reversiblo, so that both the
top and bottom sides can be consumed. I am also enabled to place in
the centre of the bands or trough a substance of either cast or wrought
iron, clay, or other compound.
If the bar is solid I form a groove or flute alternately on each side
of the said bar. I also form a groove down one side of the shoulder of
the bar and a strip or wedge on the other side of the said shoulder. The
said strip or wedge being inserted into the groove formed in the shoulder of
the next bar, the bars are held at an equal distance from each other, thus
giving one uniform amount of windage and keeping the bars in position.
This arrangement also applies to the shoulders of any description of bars.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Newbold in the Great Seal Patent Office on
the 7th November 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
NEWBOLD, of the Town and County of the Town of Nottingham, Metal
Merchant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of May, in the year of our
Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Edward Newbold, Her special license
that I, the said Edward Newbold, my executors, administrators, and
assigns, or such others as I, the said Edward Newbold, 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,

page_text: within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN FURNACE
BARS," upon the condition (amongst others) that I, the said Edward
Newbold, 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 Scal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Edward Newbold, 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 statement, reference being had to the accompanying Drawings
forming a part of this Specification :-
My improvements are applicable to the bars of locomotive, retort, and
ordinary furnaces, and consist in forming a compound bar having its
shoulders in the centre of its ends by means of two bands or straps made
loose (with a slot and small band or tie to connect) supporting a bar of
clay, metal, or mineral.
My Invention also consists in forming a trough bar as a main bar, the
false bar of clay or other substance resting in the upper extremity of the
trough and allowing a space through the main bar for the circulation of
water or steam.
1. My Invention further consists in forming a hollow main bar of any
suitable shape having parallel ridges or flanges forming troughs on its
upper and lower sides for the insertion of false bars of clay or other sub-
stance. Into these trough bars and hollow bars I introduce a stream of
water or steam through the bearer bar or through a tube (which I can
place outside the furnace) into the said trough and hollow bars, and get
a circulation or flow of water or steam round every bar in a furnace, and
by attaching a pipe from the said hollow bars at the back of the furnace
I return the smoke and waste heat by the pressure of such steam upon
the fire in the furnace and consume it, at the same time keeping the
bars cool and not in direct contact with the fire, the fire resting upon a
separate bar of clay or any suitable compound or mineral, such bar of clay
or compound or mineral resting in the troughs of the said hollow bars.
By the aid of the above-mentioned bands, which can either be made solid,

page_text: fast, loose in halves, or trough-like, and by forming the hollow bars with
troughs on their upper and under sides for the insertion of the false bars
I make the said bars reversible so that both their top and bottom sides
can be consumed and keep a chamber for oxygen in the centre of the
bars. I am also enabled to place in the centre of the bands or troughs
a false bar of either cast or wrought iron, clay, or other compound or
mineral, thus preventing the fire coming in direct contact with the
main bars. The use of these compound bars effects a great saving,
as any portion of the false bar which has not been consumed can be
utilised.
My Invention also consists in forming a solid bar with a groove
or flute alternately on each side of the said bar giving a serpentine
windage.
I also form a groove down one side of the shoulder of the bar and a
strip or wedge on the other side of the said shoulder. The said strip or
wedge being inserted into the groove formed in the shoulder of the next
bar the bars are held at an equal distance from cach other, thus giving
one uniform amount of windage and keeping the bars in position.
This arrangement also applies to the shoulders of any description of
bars.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a plan showing a number of my improved bars fixed in
position; Figures 2, 3, and 4 are a cross section, end and side elevations
of the same; Figure 5 shows a modified form of the said -bars;
Figures 6, 7, and 8 are a section, side and end elevations of the same.
Figure 9 is a plan showing another modification in the shape of the
bars; Figures 10, 11, and 12 are a section, side and end clevations of
the same.
Figure 13 is a plan of my improved solid bars; Figure 14 is a section
on the line A, B, Figure 13; Figure 15 is a section on the line C, D,
Figure 13.
Figure 16 is a plan showing another form of solid bar; Figure 17 is
a section on the line E, F, Figure 16; Figure 18 is a section on the
line G, H, Figure 16.
Figure 19 is a plan of my improved trough bars; Figures 20, 21,
and 22 are a cross section, side elevation (partly in section) and end
clevation of the same.

page_text: Figures 23, 24, 25, and 26 are a plan, cross section, side clevation
(partly in section) and end elevation of my improved hexagonal hollow
bar.
Figures 27, 28, 29, and 30 are a plan, cross section, side elevation
(partly in section), and end elevation of my improved square hollow
bar.
Figures 31, 32, 33, and 34 are a plan, cross section, side elevation
(partly in section) and end elevation of a circular hollow bar.
Figures 1 to 4 illustrate the first part of my Invention. The bands
or straps A support the bar B of metal, mineral, clay, or other suitable
substance. a are the shoulders of the bars, and are the bands or ties
fitting into slots b' in the shoulders a, and thus uniting the portions of
the bar.
Figures 5 to 12 show the same arrangement modified to adapt it to
the different forms of the bar of clay or other substance B to be sup-
ported. These bars, as will be readily seen from the Drawings are
reversible, admitting of both their top and bottom sides being consumed.
Figures 13, 14, and 15 show my improved solid bars A. having grooves
or flutes alternately on each side, thus forming a serpentine windage.
The shoulders d of the said bars are formed with a strip or wedge & on
one side and a groove e on the other side, so that the wedge of one bar
is inserted into the groove in the shoulder of the next bar in the series,
thus holding all the bars at an equal distance from each other, and
giving a uniform amount of windage.
In Figures 16, 17, and 18 is shown another form of solid bar differing
in cross section from that shown in Figures 13 to 15, the arrangement
of the shoulders of the said bars being the same. These solid bars with
serpentine windage effect a great saving of fuel, as the oxygen passing
into the furnace is by them more evenly distributed.
Figures 19 to 22 show my improved bars formed as troughs, in the
upper part of which rests the bar of clay or other substance to be sup-
ported. C is the main bar; D, the false bar of clay, mineral, or other
substance; and f, the passages through said bars for the introduction of
a stream of water or steam, as herein-before mentioned.
In Figures 23 to 34 are shown various forms of hollow bars con-
structed according to my Invention. The main bars E may be square,

page_text: circular, hexagonal, or of any suitable shape, and are provided on their
upper and under sides with parallel ridges or flanges y forming troughs
or grooves for the insertion of the false bars h of clay, mineral, or other
substance. The said bars are thus made reversible. A stream of water
or steam can be introduced into these bars through the bearer bar, as
shown by the Drawings, or through a tube placed outside the furnace.
The insides of these hollow bars may be enamelled to prevent incrusta-
tion when water is heated. or steam generated therein.
In. witness whereof, I, the said Edward Newbold, have hereunto
set my hand and seal, this Thirty-first day of October, in the
year of our Lord One thousand eight hundred and seventy-three.
EDWARD NEWBOLD. (L.S.)