IMPROVEMENTS IN FURNACE BARS
Year: 1875

page_text: LETTERS PATENT to Edward Newbold, of the Town and County of
the Town of Nottingham, for the Invention of "IMPROVEMENTS IN
FURNACE BARS."
PROVISIONAL SPECIFICATION left by the said Edward Newbold at the
Office of the Commissioners of Patents, with his Petition, on the
23rd January 1875.
I, EDWARD NEWBOLD, of the Town and County of the Town of
Nottingham, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN FURNACE BARS," to be as follows:-
The said improvements consist in forming a furnace bar of a number
of separate pieces or sections. Each end of the said sections is bevelled
and has a groove or channel formed in it. The said sections are sup-
ported by a suitable framework, and when placed in position slightly
overlap each other. By these means I admit a larger quantity of
oxygen to the furnace, thereby causing a more thorough combustion
of the fuel. The durability of the bars is also increased, the warping

page_text: of the bars is prevented, and if any section is burnt away a new one
can be inserted instead of, as formerly, an entire new bar being
required.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Newbold in the Great Seal Patent Office
on the 17th July 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
NEWBOLD, of the Town and County of the Town of Nottingham, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of January, in the
year of our Lord One thousand eight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Edward Newbold, Her special
licence 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, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "Iм-
PROVEMENTS 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 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 Edward Newbold, 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 reference being had to the accompanying Drawing
forming a part of this Specification :—

page_text: The said improvements consist in forming furnace bars of iron, steel,
clay, or other suitable material, in a number of separate pieces or
sections. The said sections may be cast solid or have a perpendicular
groove or channel at each end, and may also be provided with one or
more openings through which air can pass into the furnace, with, or
without the perpendicular grooves at ends. The ends of the said sections
may or may not be bevelled, the front end of the section nearest the
furnace door being rounded off. The sections are supported by a suitable
framework, each section being provided with one or more tongues or
wedges on its under side which fit between the bars of the framework.
The sections.are provided with one or more lugs on one or both sides for
keeping them in positión. I also form a bar in sections, having grooves
or flutes alternately on each side, forming lugs or teeth which may or
may not extend to the bottom of the bar.

page_text: the framework may be made the width of the furnace, or in pieces or
sections, each containing one, two, three, or more bars. This framework
is capable of supporting other descriptions of bars besides those herein
described, whether the said bars are cast in sections or in one piece.
The section of the bar, shown in Figures 3 and 4, has perpendicular 5
grooves or channels a" formed at each end, and that shown in Figures 5
and 6 has as an opening a" in the centre in addition to the perpen-
dicular grooves. A number of smaller openings may be substituted for
this large central opening, and these smaller openings, or the single
central opening, may or may not be combined with the perpendicular 1
grooves at the ends. Each of these sections is provided with the lugs a
and tongues or wedges a'.
The section, shown in Figures 7 and 8, is formed with grooves or
flutes C, alternately on each side, which form lugs or teeth C¹, which may.
or may not extend to the bottom of the bar, producing, when the bars J
are in position, a serpentine windage. These sections are also provided
with the tongues or wedges a¹ for supporting the said sections between
the bars of the framework B.
By this Invention I admit an increased quantity of oxygen to the
furnace, thereby causing a more thorough combustion of the fuel. The 2
durability of the bars is also increased, the warping of the bars is pre-
vented, and if any section is burnt away a new one can be inserted
instead of, as hitherto, an entire new bar being required.
In witness whereof, I, the said Edward Newbold, have hereunto
set my hand and seal, this Fourteenth day of July in the year 2
of our Lord One thousand eight hundred and seventy-five.
EDWARD NEWBOLD. (L.S.)