CERTAIN IMPROVEMENTS IN WEIGHTING THE TOP ROLLERS OF MACHINERY USED IN PREPARING AND SPINNING COTTON AND OTHER FIBROUS MATERIALS
Year: 1855

page_text: LETTERS PATENT to William Hartcliffe, of Salford, in the County of
Lancaster, Machine Maker, for the Invention of "CERTAIN IMPROVEMENTS
IN WEIGHTING THE TOP ROLLERS OF MACHINERY USED IN PREPARING AND
SPINNING COTTON AND OTHER FIBROUS MATERIALS,"
Sealed the 20th May 1856, and dated the 4th December 1855.
PROVISIONAL SPECIFICATION left by the said William Hartcliffe at
the Office of the Commissioners of Patents, with his Petition, on the
4th December 1855.
I, WILLIAM HARTCLIFFE, of Salford, in the County of Lancaster, Machine
Maker, do hereby declare the nature of the said Invention for CERTAIN IM-
PROVEMENTS IN WEIGHTING THE TOP ROLLERS OF MACHINERY USED IN PREPARING
AND SPINNING COTTON AND OTHER FIBROUS MATERIALS to be as follows:-
The object of this Invention is to reduce the friction consequent on the
present mode of weighting the top rollers of drawing rollers employed in the
various machines used in preparing and spinning cotton and other fibrous
materials.
My Invention consists in the application of antifriction rollers to the weight
books or saddles bearing on the top rollers; these antifriction rollers may be
applied to all the top rollers of the drawing rollers, or only to the front top
roller, which revolves at the greatest velocity. By means of these improve-
ments, the coverings of the top rollers will last much longer than at present,
owing to the diminution of friction between the top roller and the weighting
apparatus. The weights can also be reduced.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Hartcliffe in the Great Seal Patent Office on the
3rd June 1856.
:
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HARTCLIFFE, of Salford, in the County of Lancaster, Machine Maker, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourth day of December, in the year of our
Lord One thousand eight hundred and fifty-five, in the nineteenth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said William Hartcliffe, Her special license that I, the said William
Hartcliffe, my executors, administrators, and assigns, or such others as I, the
said William Hartcliffe, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times there-
after 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 CERTAIN
IMPROVEMENTS IN WEIGHTING THE TOP ROLLERS OF MACHINERY USED IN PRE-
PARING AND SPINNING COTTON AND OTHER FIBROUS MATERIALS," upon the condition
(amongst others) that I, the said William Hartcliffe, my executors or admi-
nistrators, 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 William Hartcliffe, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
Specification thereof, reference being had to the accompanying Drawing
(that is to say)—
The nature of my Invention of certain improvements in weighting the top
rollers of machinery used in preparing and spinning cotton and other fibrous
materials, consists in the application of antifriction rollers to the weight hooks
and saddles bearing on the top rollers of the drawing rollers, forming part of
the above-named machinery.
And in order that my Invention may be fully understood, and readily
arried into effect, I will proceed to describe the means pursued by me.
Figure 1 is a side elevation of a weight hook suitable for the front drawing

page_text: roller of a roving frame; Figure 2 is a front elevation; and Figure 3, a plan
of the same:
a is the front drawing roller; b, the top roller; and c, the hook, the upper
part of which is open to admit the two antifriction rollers d, d, which revolve
freely on studs or pins riveted or otherwise fixed in the weight hook. As the
front drawing roller revolves much faster than the others, it is generally found
sufficient to apply my improvements thereto, and to apply the ordinary saddle
and weight books to the other rollers; the antifriction rollers may, however,
be applied to the saddles in the same manner as to the weight hook shown.
By the application of the antifriction rollers above described, the friction
between the top roller and the weighting apparatus is greatly diminished; con-
sequently the coverings of the top rollers will last much longer than heretofore,
and the same amount of pressure between the top roller and the drawing roller
is obtained with a smaller weight.
Having thus particularly described the nature of my Invention, and the
manner of performing the same, I declare that I claim the application of anti-
friction rollers to the weight hooks and saddles employed for weighting tho
top rollers of machinery used in preparing and spinning cotton and other
fibrous materials.
In witness whereof, I, the said William Hartcliffe, have hereunto set
my hand and seal, this Second day of June, in the year of our Lord
One thousand eight hundred and fifty-six.
Witness,
H. B. BARLOW,
Manchester.
W. HARTCLIFFE. (L.S.)