IM- PROVEMENTS IN CONDENSERS FOR WORKING WOOL OR OTHER FIBROUS SULSTANCES
Year: 1868

page_text: LETTERS PATENT to Edward Fairburn, of Kirklees Mills, Mirfield,
in the County of York, Card Maker, for the Invention of "IM-
PROVEMENTS IN CONDENSERS FOR WORKING WOOL OR OTHER FIBROUS
SULSTANCES."
PROVISIONAL SPECIFICATION left by the said Edward Fairburn at
the Office of the Commissioners of Patents, with his Petition, on
the 3rd June 1868.
I, EDWARD FAIRBURN, of Kirklees Mills, Mirfield, in the County
of York, Card Maker, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN CONDENSERS FOR WORKING WOOL OR OTHER FIBROUS
SUBSTANCES," to be as follows:-
This Invention relates to certain machinery known as condensers, the
doffer of which has rings or dividers of gutta percha or other material
inserted betwixt rings of cards on its surface, such rings being employed
for dividing the wool or other fibrous substance under operation into
strips. In practise it is found desirable that these rings or dividers
should project nearly to or be even with the points of the card teeth,
and that when operating on some kinds or qualities of fibrous substances,
the cards require to be kept free from dirt or grease to a regular depth

page_text: from the points thereof, but by the present mode of cleaning the cards
the rings are reduced.
Now to effect the cleaning of the cards without reducing the rings
is the object of the present Invention, and for which purpose I employ
an ordinary "dicky" or roller covered with card clothing, and I form
grooves in the said roller around its circumference at distances apart
corresponding with the distances apart of the rings or dividers of the
doffer, so that in its application for cleaning or sharpening the teeth
of the doffer the said groove on the "dicky" will span the rings or
dividers in the doffer and thereby not act upon them. In some doffers
the rings or dividers are formed or fixed in wavy or curvilinear lines
around its circumference parallel with each other; in such case I
form or fix on one end of the said roller a flange to fit into an extra
groove formed or fixed on the end of the doffer of the same wavy form
as the dividers, so that as the doffer rotates it will produce a traverse
or endwise motion of the roller, and thereby maintain the grooves
in the roller opposite the rings or dividers of the doffer, consequently
avoiding the action on the rings or dividers of the doffer.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Fairburn in the Great Seal Patent Office
on the 3rd December 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
FAIRBURN, of Kirklees Mills, Mirfield, in the County of York, Card
Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of June, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-.
first 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, 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 thercin
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 CONDENSERS

page_text: FOR WORKING WOOL OR OTHER FIBROUS SUBSTANCES," 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, that is to say :—
This Invention relates to certain machinery known as condensers, the
doffer of which has rings or dividers of gutta percha or other material
inserted betwixt rings of cards on its surface, such rings being employed
for dividing the wool or other fibrous substance under operation into
strips. In practice it is found desirable that these rings or dividers
should project nearly to or be even with the points of the card teeth,
and that when operating on some kinds or qualities of fibrous substances
the cards require to be kept free from dirt or grease to a regular depth
from the points thereof, but by the present mode of cleaning the cards
the gutta percha rings or dividers are reduced.
66
dicky
"
Now to effect the cleaning of the cards without reducing the said
rings or dividers is the object of the present Invention, and for which
purpose I employ an ordinary
or roller covered with card
clothing, and I form grooves in the said roller around its circumference
at distances apart corresponding with the distances apart of the rings
or dividers of the doffer, so that in its application for cleaning (or
sharpening) the teeth of the doffer the said grooves on the dicky
will span the rings or dividers in the doffer and thereby not act upon
them. In some doffers the rings or dividers are formed or fixed in
wavy or curvilinear lines around its circumference parallel with each
other; in such case I form or fix on one end of the said roller a
flange to fit into an extra groove formed or fixed on the end of the
5 doffer of the same wavy form as the dividers, so that as the doffer
rotates it will produce a traverse or endwise motion of the roller,
and thereby maintain the grooves in the roller opposite the rings or
dividers of the doffer, consequently avoiding the action on. the rings or

page_text: dividers of the said doffer; or instead of forming an extra groove
in the said doffer the ends thereof may be made parallel with the
grooves and a finger or stud carrying a friction roller be hinged
between two collars at each end of the card roller shaft, the said
friction rollers being set to bear against the ends of the doffer and the
stud held in position by slot guides or brackets fixed to the frame of
the engine so that the said card roller is always traversed and kept.
in proper position on the doffer whatever may be the divergency of the
grooves therein.
The object and use of these wavy or diverging dividers in the doffer
are fully described and shewn in the Specification of a Patent granted
to me bearing date the 6th of January 1864, No. 37, wherein it will
be seen that they are for the purpose of effectually cleaning every part
of the surface of the swift. For this purpose it is only necessary that
the divergency should be at the point of contact of the doffer with
the swift, and it is desirable that at the front or point of contact of
the stripper with the said doffer there should be no divergency of the
deviders. Now in order to effect this object I either fix a skew wheel on
the doffer shaft suitably formed to run in a notch formed in a bracket
fixed to the framing which will traverse the doffer accordingly, or I fix
a bracket (with a friction roller thereon) to the frame at each end of
the doffer opposite the point of contact with the stripper, which rollers
bearing against the ends of the doffer will keep it in position as
required.
In witness whereof, I, the said Edward Fairburn, have hereunto set
my hand and seal, this Second day of December, in the year
of our Lord One thousand eight hundred and sixty-eight
Signed, sealed, and delivered
by the within-named Edward
Fairburn, in the presence of
W*. TASKER,
Patent Agent,
Halifax & Bradford.
EDW. FAIRBURN. (L.S.)