IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR DYEING YARN EITHER IN THE COP OR ON THE BOBBIN
Year: 1880

page_text: LETTERS PATENT to Thomas Crompton Firth and William Sunderland, both
"
of Stainland, near Halifax, in the County of York, Cotton Doublers, for an
Invention of 'IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR
DYEING YARN EITHER IN THE COP OR ON THE BOBBIN."
PROVISIONAL SPECIFICATION left by the said Thomas Crompton Firth and
William Sunderland at the Office of the Commissioners of Patents on the
22nd July 1880.
THOMAS CROMPTON FIRTH and WILLIAM SUNDERLAND, both of Stainland, near
"IMPROVEMENTS IN THE
Halifax, in the County of York, Cotton Doublers.
METHOD OF AND APPARATUS FOR DYEING YARN EITHER IN THE COP OR ON THE
BOBBIN."
This Invention relates to the construction of apparatus to be employed in dyeing
yarns when wound into a cop or when upon a bobbin.
For purpose aforesaid, when dyeing yarn in the cop or on the bobbin, each cop
or bobbin is received in a perforated holder of the shape of the cop or bobbin; the
holders immersed are in a vessel containing dye liquor, and the several holders are
by pipes connected with an exhaust pump which draws the dye liquor through the
perforations and through the yarn, whereby the latter is thoroughly impregnated
with the dye.
According to another arrangement the cops or bobbins of yarn are placed within
an enclosed vessel or ram cylinder containing dye liquor, and by pressure upon the
liquor the latter is forced through the yarn cop or yarn on bobbin.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Crompton Firth and William Sunderland in the Great Seal
Patent Office on the 21st January 1881
THOMAS CROMPTON FIRTH and WILLIAM SUNDERLAND, both of Stainland, near
Halifax, in the County of York, Cotton Doublers. "IMPROVEMENTS IN THE
METHOD OF AND APPARATUS FOR DYEING YARNS WHEN WOUND IN THE COP or
ON THE BOBBIN."
This Invention relates to the construction of apparatus to be employed in dyeing
yarns when wound into a cop or when upon a bobbin.
For purpose aforesaid, when dyeing yarn in the cop or on the bobbin is received
in a perforated holder of the shape of the cop or bobbin; the holders (immersed)
are in a vessel containing dye liquor, and the several holders are by pipes connected
with an exhaust pump which draws the dye liquor through the perforations and
through the yarn, whereby the latter is thoroughly impregnated with dye.
Such being the nature and object of this our said Invention, we will now
describe the same in detail, and in order that the same may be fully understood we
have hereunto annexed a Sheet of Drawings illustrated thereof, and have marked
the same with figures and letters of reference, the same letter referring to like
parts in the several views.
Fig. 1 is an elevation; Fig. 2, an end view; Figs. 3, 4, details. At A is a bobbin
perforated, the better to facilitate passage of dye in the yarn B; C is the holder
perforated and carried in the stand pipe D connected with pipe E leading to the
exhaust pipe F, the latter in connection with an exhaust pump so as to draw the
dye liquor through the yarn and so dye same. At G is a conical spool or bobbin,
but it will be understood that whatever the outer form of the bobbin or spool on
which the yarn is wound, or if a cop above be dyed, the "holder" C is to be of
corresponding shape or form.
Having thus fully described the nature and particulars of this our said Invention,
together with the manner in which the same is to be formed or carried into
practical effect, we would have it understood that we claim as our Invention the
dyeing yarn in the cop or bobbin by apparatus and method described, or any
mere modification of the appliances as illustrated by Drawings hereunto annexed
and fully described.
In witness whereof, I, the said William Sunderland, for and on behalf of the
said Thomas Crompton Firth and myself, have hereunto set my hand and
seal, this Fifteenth day of January, in the year of our Lord One thousand
eight hundred and eighty one.
Witness,
WALTER BRIERLEY,
Patent Agent.
Halifax & Blackburn.
WILLIAM SUNDERLAND. (L.S.)