Improvements in Apparatus. for Drying Yarn.
Year: 1895

page_text: "Date of Application, 9th July, 1895
Complete Specification Left, 17th July, 1895-Accepted, 17th Aug., 1895
Improvements in Apparatus. for Drying Yarn.
We, ORMEROD DUCKWORTH, Dyer, of the Borough of Norristown, County of
Montgomery, and HORACE PETTIT, Attorney at Law, of S.E. Corner Chestnut
and 5th Streets, in the City of Philadelphia, both in the State of Pennsylvania,
United States of America, do hereby declare the nature of this invention to be as
follows:-
Our invention relates to an improved apparatus for drying hanks of yarn or
thread and it consists essentially of mechanism for keeping the bank or hanks under
constant tension during the drying operation in such manner that the gradual
lengthening of the bank, due to the decrease in the amount of moisture it contains,
will be taken up during its travel through the machine.
Usually in drying hanks of yarn or thread of any description, the tension exerted
on the hank is due, for the most part, to the weight of a reel or roller placed at the
lower end of the hank but it has been found impracticable to employ a reel or roller
of sufficient weight to keep the yarn perfectly straight and prevent snarls and kinking
which in some classes of yarn is very apt to occur. and if not prevented greatly
depreciates its value.
In carrying out our invention we propose to employ two reels or rollers on one of
which the hanks are hung and the other having been passed through the hanks is
connected at its opposite ends to tension springs carried by the mechanism for
traversing the .hanks through the machine, the springs being of sufficient length to
take up any increase in the length of bank without materially decreasing the tensional
strain they exert upon the yarn.
The various reels or rollers are supported at suitable intervals upon a single set of
carrying chains, one at each side of the machine, and the reels or rollers extending
transversely across the machine and being attached at their opposite ends to the
chains. These chains are traversed within a. .drying. machine of any suitable
construction.
In this machine a current of air is drawn by a fan through a chamber containing
air heating coils and is forced down through the yarn passing through side openings
into flues and from thence escaping into a chamber from which it is forced by a
fan down through the yarn and escaping by side flues into passage and: from
thence into a chamber first passing however through another chamber provided
with heating pipes and finally escaping through an opening provided with an
eduction fan.
This series of chambers, fans, and flues is contained within a main casing open at
the front end so that the hanks of yarn may be readily placed upon or removed from
the traversing chains.
In suitable bearings on the casing are mounted transverse shafts on which are
mounted sprocket wheels forming guides and actuating devices for link belts located
one at each side of the machine. At intervals the links of this belt are provided
with projecting lugs extending in opposite directions from different links, or a single
link may be provided with both lugs. The one lug is adapted to receive the end of
a reel or roller, on which the hank of yarn or thread is hung, the opposite end of
the hank being also provided with a similar reel or roll which is connected to the
other lugs by springs which at all times tend to keep the hanks stretched tant and
prevent the formation of kinks or snarls during the drying of the yarn. In
г

page_text: connecting the reel or roller to the lug, the said lug is provided with an eye bolt to
which the tension spring is secured and the opposite end of the spring being provided
with a loop for the insertion of the end of the reel while the tension of the spring
may be adjusted by means of a nut upon the threaded end of the eye bolt.
By arranging the hanks of yarn in this manner we are enabled to effectively dry
the yarn with the use of a single set of carrying chains and the hank is kept at a
practically uniform tension the springs being of a sufficient length to permit their
taking up the increase in the length of the yarn as the drying progresses without
materially affecting their operation.
Dated this 9th day of July 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicants.
Improvements in Apparatus for Drying Yarn.
We, ORMEROD DUCKWORTH, Dyer, of the Borough of Norristown, County of
Montgomery, and HORACE PETTIT, Attorney at Law of S.E. Corner Chestnut
and 5th Streets, in the City of Philadelphia, both in the State of Pennsylvania,
United States of America, 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 :-
Our invention relates to an improved apparatus for drying hanks of yarn or
thread and it consists essentially of mechanism for keeping the hank or banks under
constant tension during the drying operation in such manner that the gradual
lengthening of the hank, due to the decrease in the amount of moisture it contains,
will be taken up during its travel through the machine.
Usually in drying hanks of yarn or thread of any description, the tension exerted
on the hank is due, for the most part, to the weight of a reel or roller placed at the
lower end of the hank but it has been found impracticable to employ a reel or roller
of sufficient weight to keep the yarn perfectly straight and prevent snarls and kinking
which in some classes of yarn is very apt to occur and if not prevented greatly
depreciates its value.
In carrying out our invention we propose to employ two reels or rollers on one of
which the hanks are hung and the other having been passed through the hanks is
connected at its opposite ends to tension springs carried by the mechanism for
traversing the hanks through the machine, the springs being of sufficient length to
take up any increase in the length of bank without materially decreasing the
tensional strain they exert upon the yarn.
In the accompanying drawings
Figure 1 is a longitudinal sectional elevation on the line 1-1 Figure 2 of an
apparatus by which our improved method may be carried into effect.
Figure 2 is a transverse section of the same on the line 2-2 Figure 1.
Figure 3 is a perspective view on a somewhat larger scale illustrating the
manner in which the yarn carrying reels or rollers are secured upon the carrying
chain and
Figure 4 is a perspective view of a modified form of chain link which may be
employed in lieu of that shown in Figure 3.
Similar letters of reference indicate corresponding parts in the several figures
of the drawings.
The various reels or rollers are supported at suitable intervals upon a single
set of carrying chains, one at each side of the machine, and the reels or rollers
extending transversely across the machine and being attached at their opposite
ends to the chains. These chains are traversed within a drying machine of any
4

page_text: suitable construction such for instance as that illustrated in the accompanying
drawings.
In this machine a current of air is drawn by a fan F, through a chamber a²,
containing air heating coils and is forced down through the yarn passing through
side openings e, into flues e', and from thence escaping into a chamber e², from
which it is forced by a fan F', down through the yarn and escaping by other side-
openings and flues é¹ into a passage E³, and from thence into a chamber E³, first
passing however through a chamber E, provided with heating pipes and finally
escaping through an opening A2, provided with an eduction fan F.
This series of chambers, fans, and flues is contained within a main casing A,
open at the front end so that the hanks of yarn may be readily placed upon or
removed from the traversing chains.
In suitable bearings on the casing A, are mounted transverse shafts B B', on
which are mounted sprocket wheels 6, forming guides and actuating devices for
link belts or chains C, located one at each side of the machine. At intervals the
links of this belt are provided with projecting lugs a, a', extending in opposite.
directions from different links, or as shown in Figure 4, a single link may be
provided with both lugs a, a'. The lug a, is adapted to receive the end of a reel
or roller b, on which the hank of yarn or thread is hung, the opposite end of the
hank being also provided with a similar reel or roll c, which is connected to the-
lugs a', by springs d, which at all times tend to keep the hanks stretched taut and
prevent the formation of kinks or snarls during the drying of the yarn. The
manner of connecting the reel or roller c, to the lug a', is shown more clearly in
Figure 3, the lug a' being provided with an eye bolt e, to which the tension spring
is secured and the opposite end of the spring being provided with a loop for the
insertion of the end of the reel c, while the tension of the spring may be adjusted
by means of a nut f, upon the threaded end of the eye bolt.
By arranging the hanks of yarn in this manner we are enabled to effectively dry
the yarn with the use of a single set of carrying chains and the hank is kept at a
practically uniform tension the springs being of a sufficient length to permit their
taking up the increase in the length of the yarn as the drying progresses without
materially affecting their operation.
Having now particularly described and ascertained the nature of our said inven--
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a yarn drying apparatus having a casing and passages for directing
currents of air through the yarn, traversing chains and bearings, rollers provided
upon lugs projecting from opposite sides of the traversing chains, and tension
regulating mechanism adapted to maintain the hanks of yarn provided on the
rollers in a taut condition, substantially as described.
2. In a yarn drying apparatus, the combination of the traversing chains, roller
supports carried thereby, yarn carrying rollers adapted to said supports, and spring
tension regulating mechanism acting to maintain the respective rollers of each pair
at a given distance apart when the banks of yarn are stretched upon the saine and
to maintain the yarn provided on the rollers in a taut condition as the distance.
between the outer ends of the supports of the rollers increases or decreases in
the travel of the chains through the apparatus, substantially as described.
3. The combination in a yarn drying machine, of two yarn reels or rolls for
carrying hanks or skeins of yarn, chains for travelling said reels or rollers, and
springs connecting one of such reels or rollers to the chains.
4. In a yarn drying apparatus, traverse chains C, lugs a¹, rollers c, and tension
springs d, securing the rollers to the outer end of the lugs a¹, substantially as
described.
5. An apparatus for drying yarn, comprising a single set of yarn traversing
chains, reels or rollers secured to Jugs projecting from opposite sides of the chain
and adapted to carry the banks of yarn to be dried, and a casing having flues.

page_text: and passages for directing a current or currents of air through the banks of yaru,
substantially as specified."
6. The combination of the casing having flues or passages for directing or
inducing air currents, transverse shafts mounted therein, sprocket wheels carried
by such shafts, a single set of carrying chains adapted to said sprocket wheels,
lugs provided upon said carrying chains and projecting from opposite sides thereof,
and sets of yarn carrying reels or rollers, the opposite reel of each set being
attached to the lugs in such manner that the bank of yarn to be dried will
extend across the line of travel of chain and at an angle thereto, substantially as
specified.
7. The combination of the casing having flues or passages for directing or
inducing air currents, traversing chains, means for moving the same through said
casing, a lug as a, projecting from one side of said chains, a yarn carrying reel
adapted to such, lug, lugs, as a¹, projecting from the opposite sides of such chains,
a second reel or roller and tension springs extending therefrom to the lugs a²,
substantially as specified.
8. The combination of a casing having flues or passages for directing or
inducing the air currents, yarn carrying chains and means for moving the same
through the casing, lugs, as a, projecting from one side of the chains and adapted
to carry a reel or roller, lugs a¹, projecting from the opposite sides of the chains,
a second reel or roller, adjustable bolts carried by the lugs a¹, and tension
springs extending from said bolts to such second reel or roller, substantially as
specified.
Dated this 17th day of July 1895
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicants.