CERTAIN IMPROVEMENTS IN SIZING AND DRESSING YARNS.
Year: 1865

page_text: LETTERS PATENT to Nathaniel Greenhalgh, of Halliwell, in the County
of Lancaster, Cotton Spinner, and James Mallison, of the same Place,
Yarn Agent, for the Invention of "CERTAIN IMPROVEMENTS IN SIZING
AND DRESSING YARNS.".
Sealed the 8th May 1866, and dated the 23rd November 1865.
PROVISIONAL SPECIFICATION left by the said Nathaniel Greenhalgh and
James Mallison at the Office of the Commissioners of Patents, with
their Petition, on the 23rd November 1865.
We, NATHANIEL Greenhalgh, of Halliwell, in the County of Lancaster,
Cotton Spinner, and JAMES MALLISON, of the same Place, Yarn Agent,
do hereby declare the nature of the said Invention for "CERTAIN IMPROVE-
MENTS IN SIZING AND DRESSING YARNS," to be as follows:-
Our Invention relates to the sizing and dressing of yarns in such
machines as are called "slashers," "tape legs," or other similar machines,
wherein the yarns pass through a vessel or trough containing the sizing
material and between a series of rollers and over a steam or drying cylinder,
two pairs of rollers usually being employed to squeeze or divest the yarn
of the superfluous size, the first pair being made of wood, and one of the
second being composed of copper or suitable metal having a smooth and
truly even surface. This copper or metallic roller has hitherto been in
contact with the hot size, and has thereby become so heated that whenever

page_text: the machine and progress of the yarn have been stopped, the size has been
thereby hardened or "baked" on the yarn at that part in contact with the
heated metallic roller, and thus great loss and inconvenience have been
occasioned. Our improvements consist in obviating this loss and incon-
venience by preventing this roller (or other metallic rollers similarly
employed in sizing and dressing yarns) from becoming heated to any
injurious extent, so that the machine may be stopped without the usual
consequent damage of the yarn. The said roller may be kept cool either
by partitioning it off from the hot size by a partition or curved "shield or
protection," and so preventing the direct contact of the hot size therewith,
which is about the simplest means; or a continuous current of cold water,
cold air, or other similar cooling fluid may be passed through the roller or
continuously applied to the surface thereof, the chief feature of the Inven-
tion being the preventing of the metallic roller from becoming injuriously
heated by the means above described, which has not hitherto been accom-
plished.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Nathaniel Greenhalgh and James Mallison in the. Great:
Seal Patent Office on the 22nd May 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, NATHANIEL
GREENHALGH, of Halliwell, in the County of Lancaster, Cotton Spinner,
and JAMES MALLISON, of the same Place, Yarn Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of November, in the year of
our Lord One thousand eight hundred and sixty-five, in the twenty-ninth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said Nathaniel Greenhalgh and James Mallison, Her
special license that we, the said Nathaniel Greenhalgh and James Mallison,
our executors, administrators, and assigns, or such others as we the said
Nathaniel Greenhalgh and James Mallison, our 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 "CERTAIN IMPROVEMENTS IN SIZEING AND DRESSING
YARNS," upon the condition (amongst others) that we, the said Nathaniel

page_text: Greenhalgh and James Mallison, our executors or administrators, by an
instrument in writing under our, or one of our, 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 James Mallison, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement and accompanying Drawings (that is to say)
Our Invention relates to the sizeing and dressing of yarns in such
machines as are called "slashers," "tape legs," or other similar machines,
wherein the yarns pass through a vessel or trough containing the sizing.
material, and between a series of rollers and over a steam or drying.
cylinder, two pairs of rollers usually being employed to squeeze or divest
the yarn of the superfluous size, the first pair being made of wood, and
the second being composed of copper or suitable metal having a smooth.
and truly even surface. This copper or metallic roller has hitherto been
in contact with the hot size, and has thereby become so heated that,
whenever the machine and progress of the yarn has been stopped, the size,
has thereby hardened or baked on the yarn at that part in contact with the
heated metallic roller, and thus great loss and inconvenience have been
occasioned. Our improvements consist in obviating this loss and incon-
venience by preventing this roller (or other metallic rollers similarly
employed in 'sizing and dressing yarns) from becoming heated to any
injurious extent, so that the machine may be stopped without the usual
consequent damage of the yarn. The said roller may be kept cool either by
partitioning it off from the hot size by a partition or curved "shield" or
"protection," and so preventing the direct contact of the hot size there-
with, which is about the simplest means; or a continuous current of cold
water, cold air, or other similar cooling fluid, may be passed through the
roller or continuously applied to the surface thereof, the chief feature of
the Invention being the preventing of the metallic roller from becoming
injuriously heated by the means above described, which has not hitherto
been accomplished.
In order that the Invention may be better understood and explained in
detail, we have hercunto attached a Sheet of Drawings illustrative of the
came

page_text: Fig. I represents a detached vertical section of the improved arrange-
ment of sizing trough as adapted to the ordinary "slasher" or
tape leg'
machine employed for sizing and dressing yarns, being one modification
for effecting the desired object. In this Figure a, a, is the ordinary sizing
trough or chamber; this chamber, according to our improvement, we
divide into two compartments by means of the partition b; the compart-
ment c of this chamber contains the hot size and rollers d, d, and the
compartment e, the finishing or pressure rollers f, f; the hot size is
prevented coming into contact with the metal roller f by means of the
partition 6, the effect of which upon such roller is to keep it cool, preventing
thereby, as the yarn passes between them from the sizing trough c, any
accumulation or baking of the size upon the surface of the metal roller f.
The keeping of this roller cool may be effected in many ways, but the
arrangement as described above is the simplest modification as adapted
to the ordinary slasher.
Having now described the nature of the said Invention, together with
the method of carrying the same into practical effect, we wish it to be dis-
tinctly understood that we claim, the improvements in sizeing and dressing
yarns herein-before described and represented in the annxed Drawings,
or any mere modification or imitation thereof operating in substantially the
same or a similar manner.
In witness whereof, I, the said James Mallison, have hereunto set
my hand and seal, this Twenty-first day of May, in the year of our
Lord One thousand eight hundred and sixty-six.
JAMES MALLISON. (L.S.)