Improvements in or applicable to the Process of and Means for Sizing Yarn.
Year: 1897

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c. Act, 1883) as allowed by
the decision of the Chief Examiner of the 20th day of September 1898.
Improvements in or applicable to the Process of and Means for
Sizing Yarn.
I, WILLIAM BALDWIN, of Sleater Road, Tardeo, Bombay, Weaving Manager at
The Jeevraj Balloo Mills, Bombay, India, do hereby declare the nature of this
invention to be as follows:
My said invention relates to improvements in the process of applying size to
yarn.
:
As at present carried out the yarn is carried from the beam to the sizing trough
where it is carried suddenly under a roller which is completely immersed in the
size and then out of the size between two pairs of rollers the lower one of each pair
being partly immersed in the size. The yarn then passes to the drying cylinders.
This sudden immersion of the yarn has the effect of not allowing all the air to be
expelled from the yarn to the exclusion of the size, and the passage between the two
pairs of rollers does not correct this defect. The size thus lies on the outside of
the yarn while it is desirable that it should penetrate it in order to bind the fibres
together.
According to one part of my said invention the yarn when about to go through
the sizing trough makes a half turn round a roller outside the size trough and
then passes between this roller and one partly immersed in the size. By this
passage between the rollers the air is pressed out and the size is applied before the
yarn has time to reabsorb air.
The yarn passes underneath the lower roller of the pair and then over a roller
completely immersed in the size. This roller is used for the purpose of protecting
the yarn from the disturbing effects of ebullition in the size. The yarn then
passes between another pair of rollers, the lower one of which is partly immersed
in size, to the drying cylinders. The object of the passage of the yarn between
the latter pair of rollers is to deprive it of surplus size. By this means
the yarn is completely filled with size and in consequence has a smoother appear-
ance and is more fit for weaving.
Steaming is well known to have the effect of swelling and softening and improv-
ing the appearance of the yarn by taking for a time the elasticity out of the fibres
and making them conform to the twist.
According to another part of my said invention the yarn is passed through
a steaming chamber before entering the sizing trough. The yarn enters the

page_text: chamber by passing over rollers near the top then under a roller or rollers near the
bottom and finally passes over two more rollers or sets of rollers as it leaves
the chamber on its way to the sizing trough.
Dated this 19th day of August 1897
E. T. WHITELOW, A.M.Inst.C.E.,
70, Deansgate, Manchester, Agent for the Applicant.
Improvements in or applicable to the Process of and Means for
Sizing Yarn.
I, WILLIAM BALDWIN, of Sleater Road, Tardeo, Bombay, Weaving Manager at
The Jeevraj Balloo Mills, Bombay, India, do hereby declare the nature of this
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
:-
My said invention relates to improvements in machinery for applying size to
yarn.
In order that my said invention may be more clearly understood I will describe
the same with reference to the accompanying drawings in which
Fig. 1 is a sectional elevation showing the manner in which yarn passes through
the size trough in the machines at present used.
Fig. 2 is a sectional elevation of a machine constructed in accordance with my
said invention.
Referring to Fig. 1 which shows the process as at present carried out the yarn y
is carried from the beam a to the sizing trough b where it is carried suddenly under
a roller c which is completely immersed in the size and then out of the size between
two pairs of rollers dd' and ee¹ the lower one of each pair being partly immersed
in the size. The yarn then passes to the drying cylinders. This sudden immersion
of the yarn has the effect of not allowing all the air to be expelled from the yarn
hence the absorption of the size is prevented. The passage between the two pairs
of rollers d de el does not correct this defect. The size thus lies on the outside
of the yarn while it is desirable that it should penetrate it in order to bind the
fibres together.
According to my said invention (see Fig. 2) the yarn y when about to go through
the sizing trough 6 makes a half turn round the roller outside the size trough b
and then passes between this roller d' and the roller d which is partly immersed in
the size. By this passage between the rollers dd the air is pressed out and the
size is applied before the yarn has time to reabsorb air.
The yarn y passes underneath the lower roller d of the pair and then over a roller f
completely immersed in the size. This roller f is used for the purpose of protecting
the yarn from the disturbing effects of ebullition in the size. The yarn then passes
between another pair of rollers ee¹ the lower one e of which is partly immersed in
size, to the drying cylinders J and K. The object of the passage of the yarn
between the pair of rollers ee¹ is to deprive it of surplus size. By this means the
yarn is completely filled with size and in consequence has a smoother appearance
and is more fit for weaving.
declare that what
Having now particularly described and ascertained the nature of my said 4
invention and in what manner the same is to be performed
I claim is:-
1. In machinery for sizing yarn the combination with a size trough of

page_text: rollers d d¹ between which the yarn passes and is pressed before reaching the size,
an immersed supporting roller f for protecting the yarn and squeezing rollers e el
substantially as set forth.
Dated this 29th day of March. 1898
E. T. WHITELOW, A.M.Inst.C.E.,
70, Deansgate, Manchester, Agent for the Applicant.