IMPROVEMENTS IN BEATERS FOR THRASHING " MACHINES
Year: 1875

page_text: LETTERS PATENT to William Gray, of Sheffield, in the County of
York, for the Invention of "IMPROVEMENTS IN BEATERS FOR THRASHING
"
MACHINES."
Sealed the 2nd July 1875, and dated the 20th April 1875.
PROVISIONAL SPECIFICATION left by the said William Gray at the
Office of the Commissioners of Patents, with his Petition, on the
20th April 1875.
I, WILLIAM GRAY, of Sheffield, in the County of York, do hereby
declare the nature of my said Invention for "IMPROVEMENTS IN BEATERS
FOR THRASHING MACHINES," to be as follows:-
My Invention relates to beaters for the drum or concave of thrashing
machines, and consists in the employment for the manufacture of the
beaters of wrought-iron bars of a square or other rectangular or suitable
section, the outer surface of which bars I convert into steel by the usual
process of converting iron into steel and leaving the interior of the bars
in its original and ordinary condition of iron. The bars so converted I
then roll into the required elongated section and finished shape by sub-

page_text: jecting them to the action of the machinery, for which Letters Patent
were granted to me the 25th January 1867, No. 196, or any other
machinery capable of rolling such bars to the required form of beaters
as rolled by the machinery described in the Specification of the said
Patent. Beaters made in the manner before mentioned will be tougher
and less liable to break than any beaters hitherto in use or ordinarily
employed, as while possessing the requisite hardness on their external
surface the iron fibre will remain in the interior and extend throughout
the length of the bar.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Gray in the Great Seal Patent Office
on the 14th October 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
GRAY, of Oak Villa, Upperthorpe, near Sheffield, in the County of York,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of April, in the
year of our Lord One thousand eight hundred and seventy-five,
in the 38th year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said William Gray, Hor
special license that I, the said William Gray, my executors, admi-
nistrators, and assigns, or such others as I, the said William Gray,
my exccutors, 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 BEATERS FOR THRASHING MACHINES," upon the condition
(amongst others) that I the said William Gray, my executors or
administrators, by an instrument in writing, under my hand and seal,
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.

page_text: NOW KNOW YE, that I, the said William Gray, 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
3 Drawings, and to the letters and figures marked thereon, that is to
say:―
My said Invention relates to beaters for the drum or concave of
thrashing machines, and consists in the employment for the manufac-
ture of the beaters of wrought-iron bars of a square or other rectangular
or suitable section, the outer surface of which bars I convert into steel
by the usual process of converting iron into steel, and leaving the
interior of the bars in its original and' ordinary condition of iron. The
bars so converted I then roll into the required elongated section and
finished shape by subjecting them to the action of the machinery for
which Letters Patent were granted to me the Twenty-fifth January, One
thousand eight hundred and seventy-six, No. 196, or any other machinery
capable of rolling such bars to the required form of beaters as rolled by
the machinery described in the Specification of the said Patent. The
several Figures on the annexed Sheet of Drawings represent the various
stages in the manufacture of beaters according to my Invention.
Figures 1 and 1* represent examples of wrought-iron bars, the outer
surface a (Figures 2 and 2"), of which I convert into steel, leaving the
interior b in its original condition of iron. The bar so converted I then
roll into the required elongated section of billet, such for example as
that shewn in Figure 3; and finally I roll the billet into the shape of
the finished beater with oblique indentations and projections, as shewn
in Figure 4, by the machinery herein-before referred to. Beaters made
in the manner herein-before described are tougher and less liable to
break than any beaters hitherto in use or ordinarily employed, as while
possessing the requisite hardness on their external surface the iron
fibre remains in the interior and extends throughout the length of
the bar.
Having now described and particularly ascertained the nature of my
said Invention and the manner in which the same is or may be used or
carried into effect, I would observe in conclusion that what I consider
to be novel and original, and therefore claim as the Invention secured to
me by the herein-before in part recited Letters Patent is, the application

page_text: and use to and for the manufacture of beaters for the drum or concave
of thrashing machines of wrought-iron bars converted into steel on their
outer surface and subsequently rolled to the required section of beaters,
substantially as herein-before described.
In witness whereof, I, the said William Gray, have to this my 5
Specification set my hand and seal, the Ninth day of October,
One thousand eight hundred and seventy-five.