IMPROVE- MENTS IN LOOMS FOR WEAVING
Year: 1864

page_text: LETTERS PATENT to William Giles Cooper, and James Fletcher, both of
Burnley, in the County of Lancaster, for the Invention of "IMPROVE-
MENTS IN LOOMS FOR WEAVING."
Sealed the 13th October 1864, and dated the 20th April 1864.
PROVISIONAL SPECIFICATION left by the said William Giles Cooper
and James Fletcher at the Office of the Commissioners of Patents, with
their Petition, on the 20th April 1864.
We, WILLIAM GILES COOPER and JAMES FLETCHER, both of Burnley, in
the County of Lancaster, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN LOOMS FOR WEAVING," to be as follows:-
This Invention consists in an improved mode or arrangement for-weighting
the warp or yarn beam of the loom.
We joint to a bracket fixed, to one of the side frames a short lever carrying
a comparatively light weight, and connect one end of one of the chains or
ropes, which encircle the beam to this lever, near the fulcrum, and the other
end of the chain or rope to one end of a balance or equilibrium lever, the

page_text: other end of which lever is connected to one end of the other chain or rope
which encircles the beam, the other end of the chain or rope being held
fast to the framework of the beam by a hook or pin. By these means we
dispense with the present excessively heavy weights, and enable the beam
to be weighted as required with a small exertion of strength.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Giles Cooper and James Fletcher in the Great
Seal Patent Office on the 20th. October 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
GILES COOPER and JAMES FLETCHER, both of Burnley, in the County of
Lancaster, 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 sixty-four, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said William Giles Cooper and James Fletcher, Her special license that
we, the said William Giles Cooper and James Fletcher, our exécutors, admi-
nistrators, and assigns, or such others as we, the said William Giles Cooper
and James Fletcher, our 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 "IMPROVE-
MENTS IN LOOMS FOR WEAVING," upon the condition (amongst others) that we,
the said William Giles Cooper and James Fletcher, our executors or admi-
nistrators; by an instrument in writing under our, or their, or one of our
or 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 we, the said William Giles Cooper and James
Fletcher, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and 'ascer-
tained in and by the following statement (that is to say) :-

page_text: This Invention consists in an improved mode or arrangement for weighting
the warp or yarn beam of the loom, for the purpose of regulating the
weighting or tension of the yarn. We joint to a bracket fixed to one of the
end frames of the loom a short lever carrying a comparatively light weight,
and connect one end of one of the chains or ropes which encircle the beam to
this lever near the fulcrum, and the other end, of the chain or rope to one end
of a balance or equilibrium lever, the other end of which lever is connected to
one end of the other chain or rope which encircles the beam, the other end of
the chain or rope being held fast to a strong spring attached to the frame-
work of the loom, or to the framework itself. By these means we dispense
with the present excessively heavy weights, and enable the beam to be
weighted, as required, with a small exertion of strength.
This Invention will be clearly understood by referring to the figures and
letters on the accompanying Sheet of Drawings, in which Fig. 1 is a back
view of part of a loom, having a yarn beam provided with our improved
weighting motion, and Fig. 2; a transverse section of the same, the weight
being shewn by dotted lines.
rail; c, the
a represents the end frames of the loom; b, the back cross
yarn beam; and d, e, the chains or ropes which encircle it. To one of
the end frames a we fix a bracket f having a stud, on which is jointed the
short lever g carrying a weight h. One end of the chain or rope d is con-
nected to the short lever as at k, and the other end of the chain or rope to
one end of the balance or equilibrium lever 1, which works on a stud or
fulcrum in the middle of the cross rail b, and is connected at the other end to
one end of the chain or rope e, the other end of which is connected to the
spring m, which spring may be spiral or of any other form.
The following are some of the advantages to be obtained by the use of our
improved weighting motion :-There is great facility in weighting the yarn in
the loom. The weight can be moved with ease from one place to another, it
being but little more than half the ordinary weight for heavy cloth, and less
than half for light cloth. There is an equality of weight or resistance at each
end of the yarn beam, which ensures the certainty of making even cloth in all
positions of the weight on the short lever. The loom is worked more easily
than in the old plan, on account of there not being so much dead weight to
work against.
Having now described the nature and particulars of our said Invention,
and the manner in which the same is to be performed, we desire it to be
understood that we claim in looms for weaving the balance or equilibrium

page_text: lever 'connected to the chains or ropes which encircle the yarn beam, and
working in connection with the weighted lever g and spring m, as all such
improvements are herein described and illustrated in the accompanying Sheet
of Drawings..
> :
In witness whereof, I, the said William Giles Cooper, for and on behalf
of myself, and the said James Fletcher, have hereunto set my hand
and seal, this Eighteenth day of October, in the year of our Lord One
thousand eight hundred and sixty-four.
WILLIAM GILES COOPER. (L.S.)
Signed, sealed, and delivered by
the within-named William Giles
Cooper, in the presence of
E. J. HUGHES,
Patent Agent,
Manchester.