IMPROVEMENTS IN FURNACE BARS
Year: 1874

page_text: LETTERS PATENT to Edward Nowbold, of the Town and County of the
Town of Nottingham, for the Invention of "IMPROVEMENTS IN FURNACE
BARS."
Scaled the 28th July 1874, and dated the 30th January 1874.
PROVISIONAL SPECIFICATION left by tho said Edward Newbold at the
Office of the Commissioners of Patents, with his Petition, on the
30th January 1874.
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:―
My Invention consists in a furnace bar having grooves formed alter-
nately on each side, the said grooves extending from the top to the
under side of the said bar and the teeth, or those portions of the bar
between the grooves being gradually tapered from the top to the under
side of the said bar.

page_text: These improved bars can be supported by existing bearers in dry ash
furnaces, alkali furnaces, and all furnaces similarly built.
PATION In pursuance of the con
filed by the said Edward Newbold in the Great Seal Patent Office
on the 28th July 1874.
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 Thirtieth day of January, in the year
of our Lord One thousand eight hundred and seventy-four, 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 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 "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 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: My Invention consists in a solid furnace bar having grooves formed
alternately on each side, the said grooves extending from the top to the
under side of the said- bar and the teeth, or those portions of the bar
between the grooves being gradually tapered from the top to the under
side of the said bar.
Figures 4, 5, 6, and 7 illustrate modifications in the shape of the said
bar.
Like letters indicato like parts throughout the Drawing.
In my improved bars the bottoms of the shoulders are on a level with
the under side of the main portion or web d of the bar. I form my
improved bar with grooves or flutes e alternately on each side, which
grooves may be of the forms shown in the Drawing, or may be modified
without departing from the spirit of my Invention. The lugs or teeth f
formed between these grooves extend from the upper to the under side
of the bar, and are wedge-shaped, that is to say, their sides and outer
edges are tapered downward to the bottom of the bar, as shown in the
Drawings. I also form lugs or teeth alternately on each side of a plain
tapered bar without belly or curved under part.
Figure 4 illustrates a modification in the form of the grooves, and
Figures 5, 6, and 7 illustrate modifications in the form of the wedge-
shaped lugs or teeth. The shape of these lugs or teeth may be modified
in various ways without departing from my Invention.
These improved bars can be supported by the existing bearers in dry
ash furnaces, alkali furnaces, and all furnaces similarly built.
Having thus fully described the said Invention, and shown how the
same may be conveniently and advantageously carried into practice, I
claim, a square or tapered solid furnace bar having wedge-shaped lugs
or teeth f formed alternately on each side, and extending from the top to

page_text: the under side of the said bar, substantially as described and illustrated
in the accompanying Drawing.
In witness whereof, I, the said Edward Newbold, have hereunto set
my hand and seal, this Twenty-first day of July, in the year of
our Lord One thousand eight hundred and seventy-four.
EDWARD NEWBOLD. (L.B.)