IMPROVEMENTS IN MACHINERY OR APPARATUS FOR CONDENSING WOOL OR OTHER FIBROUS SUBSTANCES
Year: 1871

page_text: LETTERS PATENT to Edward Fairburn, of Kirklecs Mills, Mirfield,
in the County of York, Card Manufacturer, for the Invention of
"IMPROVEMENTS IN MACHINERY OR APPARATUS FOR CONDENSING WOOL OR
OTHER FIBROUS SUBSTANCES."
1
Sealed the 7th November 1871, and dated the 8th May 1871.
PROVISIONAL SPECIFICATION left by the said Edward Fairburn at the
Office of the Commissioners of Patents, with his Petition, on the
8th May 1871.
I, EDWARD FAIRBURN, of Kirklees Mills, Mirfield, in the County of
York, Card Manufacturer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR CONDENSING
WOOL OR OTHER FIBROUS SUBSTANCES," to be as follows:-

page_text: .
respectively, April 5th 1859, No. 850, and January 6th 1864, No. 37,
the objects of which were to effect a clear division of the carded wool,
cotton, silk, or other fibrous substance on the doffer cylinder into strips
to be condensed into slivers or threads equal in quantity or weight.
The Specification of the former Patent shews and describes a series of
plates of thin metal placed betwixt the swift and the doffer and entering
grooves formed or cut into the surface of the said doffer, being held in
position by a fixed bar, while the Specification of the latter Patent shews
and describes the grooves in the doffer to be formed in serpentine or
wavy lines.
Now my present improvements consist in constructing these dividing
plates of sufficient length to extend from the junction or point of
contact between the swift and the doffer over the top of the latter
nearly to the front thereof, or the point or place where the wool or
other fibrous substance under operation is doffed, stripped, or taken off.
Also in applying two or more card rollers above the said doffer so
arranged and operated as to clean or clear the doffer of any wool or other
-fibres -that may not be taken off by the ordinary doffing plate or other
doffer or stripper employed. The said dividing plates are formed so-as
to project above the surface of the card clothing on the doffer at the
point or place of contact with the first of these rollers, and to penetrate
its card clothing. They are also formed with projections inward, so as
to bear upon the bottom of the grooves at two or three places only, so
as to diminish friction thereon, and the bar to which they are attached
as well as the card rollers are capable of traversing or reciprocating
endwise so as to suit the variation or lateral curvature or divergency
of the grooves, and I also cut the grooves a little deeper than
heretofore.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighth day of May, in the year of
our Lord Onc thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Edward Fairburn, Her special licence
that I, the said Edward Fairburn, my executors, administrators, and
assigns, or such others as I, the said Edward Fairburn, my 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 "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR CONDENSING WOOL OR OTHER FIBROUS SUB-
STANCES," upon the condition (amongst others) that I, the said Edward
Fairburn, 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 Edward Fairburn, 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 and one accompanying Sheet of Drawings
(that is to say) :-
This Invention relates to former improvements in this class of
machinery for which Letters Patent were granted to me dated
respectively, the Fifth day of April 1859, Number 850, and the
Sixth day of January 1864, Number 37, the objects of which were to
effect a clear division of the carded wool or other fibrous substance on
the doffer cylinder into strips to be condensed into slivers or threads
equal in quantity or weight.
The Specification of the former Patent shews and describes a series of
plates of thin metal placed betwixt the swift and the doffer and entering
grooves formed or cut into the surface of the said doffer, being held in
position by a fixed. bar, while the Specification of the latter Patent shews

page_text: and describes the grooves in the doffer to be formed in serpentine or
wavy
lines.
Now my present improvements consist in constructing these dividing
plates or blades of sufficient length to extend from the junction or point
of contact between the swift and the doffer over the top of the latter
nearly to the front thereof or the point or place where the wool or other
fibrous substance under operation is doffed, stripped, or taken off. Also
in applying two or more card rollers above the said doffer, so arranged
and operated as to clean or clear the doffer and the dividing plates or
blades of any wool or other fibres that may not be taken off by the
ordinary doffing plate or other doffer or stripper employed. The said
dividing plates are formed so as to project above the surface of the
card clothing on the doffer at the point or place of contact with the
first of these rollers and to penetrate its card clothing.
In order that this Invention may be fully understood, reference is
herein given to an accompanying Sheet of Drawings, illustrating the
same where A is the ordinary doffer of a condenser carding engine with
grooves and dividing plates B, therein according to the Specifications of
former Patents referred to, but in this case the said plates extend from
the junction of the doffer with the swift C to near the front A' of the
said doffer. These plates are supported or held in position by a
triangular bar D fixed across the machine, each plate being formed with
a hook B¹ to hold thereon; E and F are two card rollers for clearing
the doffer and dividing plates or blades of any wool or fibre that may
have accumulated thereon, the former of which rollers runs at a slower
surface speed than the latter, and the latter at a slower surface speed
than the doffer, each running in the direction of the arrows.
will be observed that the dividing plates project above the surface of
card clothing on the doffer, and penetrate slightly into the card clothing
of the first roller, so that any accumulations of the fibres on the said
plates or blades may be removed therefrom by the said roller and
transferred to the doffer by the second of these rollers.
It
Having thus described the nature of the said Invention, and shewn
by Drawings in what manner the same is to be or may be performed
or carried into practical effect, I would have it understood that I do
not confine myself to the precise details described and shewn, but what
I claim as of my Invention is,-

page_text: Firstly. The constructing and applying dividing plates or blades in
manner and for purposes substantially as shewn and described.
Secondly. The application and use of two or more card rollers in
manner and for purposes shewn and described.
In witness whereof, I, the said Edward Fairburn, have hereunto
set my hand and seal, this Sixth day of November, in the year
of our Lord One thousand eight hundred and seventy-one.
Signed, sealed, and delivered by
the within-named Edward
Fairburn, in the presence of
W*. TASKER,
Patent Agent,
Halifax & Bradford.
EDW³. FAIRBURN. (L.S.)