IMPROVED MACHINERY FOR PREPARING FIBROUS SUBSTANCES POR SPINNING
Year: 1867

page_text: LETTERS PATENT to William Clissold, of Dudbridge Works, near Stroud,
in the County of Gloucester, Engineer, for the Invention of "IMPROVED
MACHINERY FOR PREPARING FIBROUS SUBSTANCES POR SPINNING."
Sealed the 19th May 1868, and dated the 7th December 1867.
PROVISIONAL SPECIFICATION left by the said William Clissold at the
Office of the Commissioners of Patents, with his Petition, on the
7th December 1867.
I, WILLIAM CLISSOLD, of Dudbridge Works, near Stroud, in the County
of Gloucester, Engineer, do hereby declare the nature of the said Invention
for "IMPROVED MACHINERY FOR PREPARING FIBROUS SUBSTANCES FOR SPINNING,"
to be as follows:-
This Invention relates to an improvement upon an Invention for feeding
carding engines for which a Patent was granted to me .in conjunction with
Mr. James Apperly dated Dec. 4th, 1856, No. 2874. In the Specification
of the said Patent an arrangement of apparatus is described for laying a sliver
or roping in diagonál párallel lines upon the feeding apron of carding engines,
the lines of roping being produced by the traverse. of a pair of delivering

page_text: rollers which receive the roping from travelling bands or sliver cans and
deliver it on to endless bands which form the feed apron. To prevent the
delivering rolls from disturbing by the drag of their return motion the line of
roping just laid, and thus to ensure a uniformity of length in the diagonal
lines; trip levers are provided at opposite sides of the apparatus around which
the roping is lapped. These levers enable the roping to resist the drag of the
delivering rolls and thus a feed of tolerably even width is obtained. It has
however been found that the elasticity of the sliver or roping causes the lines
slightly to contract when relieved of the resistance of the trip levers, and thus
a slight inequality is induced. This is further increased during the trans-
ference of the lines of sliver from the apron to the feed rolls, and the result
has been the retention of inequalities in the yarn, the entire removal of which
was the design of the original Invention. To prevent the above-mentioned
irregularities in the feed I propose to remove the end bands of the series
which form the feed apron, and to substitute therefor bands formed of wire
cloth or furnished with porcupine teeth which extend to and lap round the
lower feed roller. This roller is clothed with card cloth for a length equal to
the space between the two wire cloth bands, but it is left bare at its ends to
receive these bands. It will now be understood that as the sliver or roping is
laid upon the feed apron the card or porcupine surfaces at the edges thereof
will take hold of the fibres and not leave hold until the slivers have passed the
feed rollers and been taken up by the licker-in roller to be distributed over
the card cylinder.
The above-described improvement is applicable not only to the diagonal
feed but also to feeds composed of transverse roping and to sheet sliver
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Clissold in the Great Seal Patent Office on the
6th June 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CLISSOLD, of Dudbridge Works, near Stroud, in the County of Gloucester,
Engineer, send greeting.
WHEREAS. Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of December, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of Her

page_text: 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, 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 "IMPROVED MACHINERY
FOR PREPARING FIBROUS SUBSTANCES FOR SPINNING," 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 bo
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):-
This Invention relates to an improvement upon an Invention for feeding
carding engines, for which a Patent was granted to me in conjunction with
Mr. James Apperley, dated December Fourth One thousand eight hundred
and fifty-six, No. 2874. In the Specification of the said Patent an arrange-
ment of apparatus is described for laying a sliver or roping in diagonal
parallel lines upon the feeding apron of carding engines, the lines of roping
being produced by the traverse of a pair of delivering rollers which receive
the roping from travelling bands or sliver cans, and deliver it on to endless
bands which form the feed apron. To prevent the delivering rolls from
disturbing by the drag of their return motion the line of roping just laid,
and thus to insure a uniformity of length in the diagonal lines, trip levers
are provided at opposite sides of the apparatus around which the roping is
lapped; these levers enable the roping to resist the drag of the delivering
rolls, and thus a feed of tolerably even width is obtained. It has however
been found that the elasticity of the sliver or roping causes the lines. slightly
to contract when relieved from the resistance of the trip levers, and thus a
slight inequality is induced. This is further increased during the transference
of the lines of sliver from the apron to the feed rolls, and the result has been

page_text: the retention of inequality in the yarn, the entire removal of which was the.
design of the original Invention. To prevent the above mentioned irregu-
larities in the feed I now propose to remove. the two end bands of the series
which form the feed apron, and to substitute: therefor bands formed of wire
cloth or furnished with porcupine teeth, which. extend' to and lap-round the
lower feed roller. This roller is clothed with card cloth for a length equal, to
the space between the two wire cloth bands, but it is. left bare at its ends, to
receive these bands.
f.
In the accompanying Drawing I have shewn. at Fig. 1. the improvement
applied to the diagonal feed, which apparatus is represented in plan, view;
Fig. 2 is an end elevation of the feed, with the improvements applied thereto;
and Fig. 3 is a partial plan shewing the upper feed roller removed; Fig. 4
shews a portion of the lower feed roller detached to explain its construction...
In these views a, a, indicate the endless bands or webbing heretofore used
for carrying the diagonal roping up to the feed, rollers.; and b, b, and c, c, are
the tension rollers over which the webbing runs. The end bands d, d, are
formed of card cloth, and, instead of passing over the roller c they extend to
and lap over the lower feed roller. The feed rollers are shewn at e and f
and they are clothed with, wire cloth. The clothing of the lower roller,, a
covers only a length of the roller equal to the space between the end bands
d, d, the ends being left bare, as, shewn at Fig. 4, to receive the bands d, d,
which form the complement of the wire card clothing of that roller; 9 is the
licker-in roller, and his the top clearing roller. It will now, be understood
that as the sliver or roping is laid upon the feed apron composed of the
bands a and c, the card surfaces at the edges thereof will take hold of the
fibres and not leave hold until the slivers have passed between the feed rollers
and been taken up by the licker-in roller to be distributed over, the card
cylinder.
The above-described improvement is applicable not only to the diagonal
feed but also to feeds, composed of transverse roping, and likewise to sheet
sliver feeds....Instead of the card surfaces porcupine surfaces, may be employed
to retain the feed in its extended form until delivered by the feed rollers to
the licker-in roller..
Having now set forth the nature of my. Invention of "Improved Machinery
for Preparing Fibrous Substances for. Spinning," 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, the application to the feeds of carding
engines or preparing machines of the means; above described for neutralizing

page_text: the contractile force of the fibres as they are presented to the feed rollers,
and thus insuring a more uniform breadth of feed than has heretofore been
obtained.
In witness whereof, I, the said William Clissold, have bereunto set
my hand and seal, the Fourth day of June, in the year of our Lord
One thousand eight hundred and sixty-eight.
WILLIAM CLISSOLD. (L.S.)