AN IMPROVEMENT IN THE CONSTRUCTION OF CARDING ENGINES.
Year: 1871

page_text: LETTERS PATENT to William Clissold, of Dudbridge Works, Stroud,
in the County of Gloucester, Engineer, for the Invention of "AN
IMPROVEMENT IN THE CONSTRUCTION OF CARDING ENGINES.
Sealed the 26th January 1872, and dated the 5th August 1871.
PROVISIONAL SPECIFICATION left by the said William Clissold at the
Office of the Commissioners of Patents, with his Petition, on the'
5th August 1871.
I, WILLIAM CLISSOLD, of Dudbridge Works, Stroud, in the County
of Gloucester, Engineer, do hereby declare the nature of the said In-
vention for "AN INPROVEMENT IN THE CONSTRUCTION OF CARDING ENGINES,"
to be as follows:-
The object of this Invention is to equalize the distribution over the
card cylinder of carding engines of the woollen and other fibres fed
thereto, and thereby to ensure a more equable texture of sheet sliver
and more even ribbons for the condenser than have hitherto been ob-
tained. To this end, instead of relying upon a short shogging motion
of the workers as heretofore for lessening the inequalities in the dis-
tribution of the fibres over the card surface, I introduce a short worker
and give it an endway traverse over the whole width of the cylinder.

page_text: This worker I fit loosely on its spindle which is mounted like the
spindles of the other workers, but is driven at a comparatively rapid
speed by a strap from a pulley on the cylinder shaft. To give the
worker a traverse motion over its spindle it is made to slide on guide
rods which are carried at one end by a chain wheel, and at the other by
a disc, which wheel and disc are mounted loosely on opposite ends
of the spindle, and are driven at a slow speed by the worker chain
of the carding engine. A double screw or endless cross-cut groove
s formed on the spindle to receive a guide pin or fork projecting
Inwards from the worker, and thus as the spindle is driven the worker
will, while rotating (independently of the spindle) be caused to traverse
over the spindle, and thereby constantly vary its working position.
through a large area. While equalizing the distribution of the fibres
over the card cylinder the tendency of this worker will also be to mix
the fibres more thoroughly than heretofore, and thus further to improve
the efficiency of the carding engine. The means of driving and tra-
versing the worker and also the amount of its traverse may be modified
as required.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Clissold in the Great Seal Patent Office 2
on the 5th February 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CLISSOLD, of Dudbridge Works, Stroud, in the County of Gloucester,
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of August, in the year of our
Lord One thousand eight hundred and seventy-one, in the thirty-fifth
year of Her reign, did, for Herself, Her heirs and successors, give and.
grant unto me, the said William Clissold, Her special licence that
I, the said William Clissold, my executors, administrators, and assigns,
or such others as I, the said William Clissold, my executors, adminis-
trators, 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 "AN IMPROVEMENT IN THE

page_text: CONSTRUCTION OF CARDING ENGINES," upon the condition (amongst others)
that I, the said William Clissold, 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 William Clissold, 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 Drawing hereunto
annexed and to the letters and figures marked thereon (that is to say) :-
―
The object of this Invention is to equalize the distribution over carding
engine cylinders of the woollen and other fibres fed thereto, and thereby
to ensure the production of a more equable texture of sheet sliver,
and more even ribbons for the condenser than have hitherto been
obtained. To this end, instead of relying upon a short shogging motion
of the several workers as heretofore for lessening the inequalities in
the distribution of the fibres over the card surface, I introduce a short
worker, and give it an endway traverse over the whole width of the
cylinder. This worker I fit loosely on its spindle which is mounted like
the spindles of the other workers in adjustable bearings.
In the accompanying Drawing, Fig. 1 shews in side elevation a
carding engine with my improvements applied thereto, and Fig. 2 is
a partial plan view of the same showing so much of the carding engine
as will serve to explain the nature of my Invention.
In these Figures A is the main card cylinder, B, B, are the ordinary
workers, and C is my improved worker, D is the feed apron, and E the
doffer cylinder. The worker C it will be seen is somewhat less than half
the length of the ordinary workers, but its proportionate length may be
increased or diminished if thought desirable. C¹ is the spindle of the
worker C, and it is driven at a comparatively rapid speed by a strap c
from a pulley a on the shaft of the cylinder A. To give the worker a
traverse motion over its spindle it is made to slide on guide rods C²
which are carried at one end by a chain wheel C³, and at the other by a
disc C, which wheel and disc are mounted loosely on opposite ends of
the spindle C¹. The chain wheel is driven at a slow speed by a chain c¹

page_text: which passes over a chain pulley a¹ on the shaft of the cylinder A, or it
may be driven by the chain (indicated by dots in Fig. 1) that drives the
other workers. A double screw or double cross-cut groove C³ is formed
on the spindle C¹ to receive a pin c² projecting inwards from the worker
as shewn in the detached view Fig. 3. By this arrangement, as the
spindle is driven by means of the belt c, the worker C will while rotating
with the spindle be caused to traverse over the spindle, and thereby
constantly vary its working position through a large area. While
equalizing the distribution of the fibres over the card cylinder, the
tendency of the worker C will also be to mix the fibres more
thoroughly than heretofore, and thus further to improve the efficiency
of the carding engine.
I would here remark that I do not confine myself to the use of one
short worker in the carding engine, nor to the details above described in
carrying out the principle of my Invention as the means of driving and
traversing the worker or workers, and also the amount of traverse to be
imparted thereto may be modified if thought desirable to suit varying
purposes.
Having now set forth the nature of my Invention of "An Improve-
ment in the Construction of Carding Engines," and explained the
manner of carrying the same into effect, I wish it to be understood that
under the above in part recited Letters Patent I claim, applying to
carding engines a worker (one or more), which while rotating will receive
an endway traverse motion on its spindle, in the manner and for the
purpose above described.
In witness whereof, I, the said William Clissold, have hereunto
set my hand and seal, the Thirty-first day of January, in the
year of our Lord One thousand eight hundred and seventy-two.
Signed, sealed, and delivered by
the said William Clissold in
the presence of
SAMUEL PHIPPS,
Sol.,
Cainscross.
WILLIAM CLISSOLD. (L.S.)