Improvements in Drying Yarn, Roving, Sliver, and the like, and in Apparatus therefor.
Year: 1899

page_text: Date of Application, 31st May, 1899
Complete Specification Left, 28th Feb., 1900-Accepted, 14th Apr.,
1900
PROVISIONAL SPECIFICATION.
Improvements in Drying Yarn, Roving, Sliver, and the like,
and in Apparatus therefor.
I, HENRY GRANDAGE, of Royd House, Brighouse, in the County of York, Dyer,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object an improved method and apparatus for drying
yarn, roving, or sliver, and the invention consists essentially in means for passing
air through and among the material. In the case of yarn 1 prefer to pass the air
through the yarn while suspended on two bobbins. In the case of roving and
sliver where the texture is much more open, they can be wound on single
bobbins, and the air passed into the bobbin, and through the material.
In carrying out my invention for yarn, I prefer to place the bobbins on two
belts or chains of spikes. These revolve synchronously slowly on pulleys in a
casing. In one portion of its length however the two bands of spikes with the
pulleys thereon pass out of the casing so that the bobbins can be taken off and
others placed on them. Not far from the point where the pulleys come out from
the casing, hot air or desiccated air of any kind is passed into the casing and an
exhauster takes the hot air from the casing near the point where the bobbins
enter the casing. Thus the yarn in its wettest stage meets the nearly saturated
air, the yarn in its driest stage, the fresh dry air. It is obvious however that
where waste hot air is abundant, the air could be forced in near the middle of
the travel of the bobbins and can exit at each end at the points where the bobbins
enter and leave the casing. Bobbins of sliver and rovings can also be passed
through this apparatus and if the sliver or roving be wound on single bobbins
as usually is the case, the bobbins can be placed close together in several rows,
instead of two rows vertically over each other, and thus practically take up the
whole area. Instead of the web on which the spikes travel having a vertical
surface, it could have a horizontal surface and in place of an open webbing and
spikes, an impervious webbing with holes at intervals into which hollow spikes
are fixed and these spikes perforated. The hot air is then admitted inside the
webbing and passes into the casing through the hollow spikes and through the
sliver or roving. In the very simplest form of my apparatus the spiked webbing
can be substituted by stationary spiked plates forming the bottom of the casing.
These spiked plates whether solid spikes or hollow spikes be used can be drawn
out sideways through side doors together with their superimposed bobbins, the
bobbins removed, fresh bobbins inserted, the plates pushed in again, and the
doors closed. The circulation of the air can remain the same in this case as when
the bobbins revolve. Where however stationary movable plates are used instead
of a revolving chain or web there can be a series of chambers one immediately
over the other. In such case they are separated by narrow chambers having per-
forations in the tops for the hollow spikes or bobbins to be fixed to and if requisite
perforations in the bottoms to admit air into the space surrounding the cops.
These latter however can be dispensed with as a rule, as sufficient air will pass

page_text: through the cops for this purpose. The air can escape at one end. The spikes
can be short hollow studs filling the bobbins.
Dated the 30th day of May 1899.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool. Patent Agents for the Applicant.
Improvements in Drying Yarn, Roving, Sliver, and the like,
and in Apparatus therefor.
I, HENRY GRANDAGE, of Royd House, Brighouse, in the County of York, Dyer,
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 follow-
ing statement:―
This invention has for its object an improved method and apparatus for drying
yarn, roving, or sliver, and the invention consists essentially in means for passing
air through and among the material. In the case of yarn I prefer to pass the air
through the yarn while suspended on the bobbins. In the case of roving and
sliver where the texture is much more open, they can be wound on single
bobbins, and the air passed into the bobbin, and through the material.
The invention will be understood from the following description, reference
being had to the accompanying drawings, in which,
Figure 1 is an elevation of my apparatus for drying yarn, etcetera, in hanks.
Figure 2 a plan thereof, one half of said plan having the easing removed to
show the interior.
Figure 3 front elevation of my apparatus for drying yarn etcetera in hanks, in
which stationary spiked plates are substituted for spiked webbing.
Figure 4 a sectional side elevation.
In one
Referring first to Figures 1 and 2, A are the bobbins to receive the hanks,
B the belts, chains or webbing provided with spikes ('. These endless belts or
chains travel synchronously and slowly on pulleys D in a casing E, and the
bobbins may be arranged to revolve slowly on their axes if so desired.
portion of its length however the two belts B of spikes with the bobbins thereon
pass out of the casing E through the doors H, so that the bobbins A can be
taken off and others placed on them. These doors H can be opened and closed
automatically by cams or be simply pushed open by the passage of the bobbins.
Figure 1 shows one of the hanks I, of yarn or other material, suspended on a
pair of bobbins, while Figure 2 shows in plan two bobbins outside the casing
ready to receive the wet hanks. Not far from the point where the bobbins come
out from the casing E, namely, at F, hot air or desiccated air of any kind is
passed into the casing E, and an exhauster takes the hot air from the casing near
the point where the bobbins enter the casing through the doors H¹ namely at G,
the direction of movement of the webbing being shown by an arrow.
Thus the
yarn in its driest stage meets the dry fresh air, the yarn in its wettest stage the
nearly saturated air, and if the hanks are made to revolve during their travel,
their different parts are exposed to the flowing air so as to dry the hanks evenly.
This revolving could easily be effected by providing star wheels at ends of bobbins
whose teeth strike at intervals against fixed pins and thus rotate them.
obvious however that where waste hot air is abundant, the air could be forced
in near the middle of the travel of the bobbins, and can exit at each end at the
It is

page_text: points where the bobbins enter and leave the casing. Bobbins of sliver and
rovings can also be passed through this apparatus, and if the sliver or roving be
wound on single bobbins as is usually the case, the bobbins can be placed close
together in several rows, instead of two rows vertically over each other, and thus
practically take up the whole area. Instead of the spiked webs having a vertical
surface they could have a horizontal surface, and in place of an open webbing
and spikes, an impervious webbing could be used with holes at intervals into
which hollow spikes are fixed and these spikes perforated. The hot air is then
admitted inside the webbing, and passes into the casing through the hollow
spikes, and out through the sliver or roving. J is a handle at end of shaft which
carries the pulley D and by which the belts or chains carrying the bobbins and
hanks are travelled.
In another form of the apparatus the spiked webbing can be substituted by
stationary spiked plates contained within a casing E as shown in Figures
and 4. In this case the plates are made as hollow chambers K, one immediately
over the other having perforations in the tops for the hollow perforated spikes L
for receiving the bobbins. These chambers K are provided with wheels M which
rest on the rails N. The hollow chambers K moreover have each a seating O
at the end which fit or socket into orifices of a blast fan P so that this fan will
foi ce air into the chambers K and out through the perforated spikes L, and so
into the space surrounding the cops. The air can escape at one end of casing
through V. Q is a hinged door for obtaining access to the interior of the
casing E and provided with fastenings R. By opening the door, the chambers K
with their hollow perforated spikes can be drawn out sideways together with
their superimposed bobbins, the bobbins with their cops removed, fresh bobbins
inserted, plates pushed in again, the door closed and fastened, and the wet cops
subjected to the drying action of the air. S are binding screws in the door Q
adapted to bind against the hollow chambers K, and form a tight joint for the
seating in the nozzles. It is obvious that if desired the direction of the air
current can be reversed. Thus for example in place of the fan P, an exhaust
fan T may be used adapted to cause a current of air to pass through the cham-
ber from the air orifice V as shown by the dotted lines. In such case solids
spiked plates can be used instead of the hollow spikes and chambers K. The
bobbins if desired may be made to revolve.
In either machine the hanks, suspended or placed on the bobbins, can be in
tension if desired, so as to recover or prevent shrinkage.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. The improvement in the drying of yarn, roving sliver, and the like, on
bobbins, which consists in placing the bobbins (with the hanks suspended thereon
in tension or without tension) on travelling or stationary belts or plates of spikes
mounted within a casing, and in passing through the casing a current of hot air
or desiccated air in such a manner as to come into direct contact with the yarn
or other material of the bobbins, and dry the same, and finally moving the spikes,
belts or plates out of the casing to enable the bobbins to be removed, and others
to be inserted substantially as described.
2. An apparatus for drying yarn, roving, sliver, and the like, comprising a
casing through which a current of hot air or desiccated air can be passed, travelling
belts or chains arranged in one or more pairs on pulleys within said casing,
spikes or pins (carrying bobbins of yarn or other material) secured to said belts
so as to project laterally therefrom, and doors at one end of said casing through
which the spiked belts and bobbins with the yarn suspended or placed thereon
can pass out after having been subjected to the drying action of the air, whereby
the bobbins can be taken off the spikes after the drying treatment and others
placed thereon, substantially as described.

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3. An apparatus for drying yarn, roving, sliver, and the like, comprising an
outer casing through which a current of hot air is continuously passed, hollow
chambers placed on rails or guides within said casing so that they can be instantly
drawn in and out through a door in the casing, hollow perforated pins or spikes
for the bobbins secured to and communicating with said chambers, and means
for forcing air into the said chambers and so out through the perforations of the
spikes into the casing, whereby if hot air be admitted into the chambers and
out through the perforations of the hollow spikes, it will have the effect of pass-
ing through and drying the material wound or otherwise placed on the bobbins,
while by opening the door and drawing the spiked chambers out of the casing,
the bobbins can be removed and fresh ones inserted, substantially as described.
4. In an apparatus for drying yarn, roving, sliver, and the like, having an
outer casing through which a current of hot air is continuously passed, the sub-
stitution for the hollow chambers and perforated spikes set forth in Claim 3, of
a solid spiked plate or plates for receiving the bobbins of yarn or other material,
said plates being mounted on rails or guides within the said casing so that the
material will come in direct contact with a current of air which is passed through
the casing, for the purpose of drying it, substantially as described.
5. In apparatus of the kind described arranging the bobbins and the hanks
suspended thereon so as to revolve within the casing, in order to expose the
different parts of the hanks to the flowing air and dry them evenly, substantially
as described.
6. The apparatus for drying yarn, roving, sliver, or the like, constructed,
arranged and operating, substantially as described with reference to and shown
in the drawings annexed.